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Solutions Search - External Power Switch Buck-Boost

DC2234A - LT8711 Micropower Synchronous Sepic Converter

Oct 2nd 2017
Demonstration circuit 2234A is a synchronous sepic converter featuring the LT®8711 multitopology switching controller. The LT8711 is a current mode PWM DC/DC controller with a dual input LDO to optimize gate driver efficiency. Ultralow 15μA quiescent current in low noise Burst Mode® operation achieves high efficiency ...

Demo Board 

 

42V Multitopology DC/DC Controller with 15μA IQ Provides Five Converter Topologies at Up to 10A Output Current

Sep 11th 2017
MILPITAS, CA and NORWOOD, MA – September 11, 2017 – Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LT8711, a multitopology current mode PWM controller that can easily be configured as a synchronous buck, boost, SEPIC and ZETA DC/DC converter, or as a nonsynchronous buck-boost ...

Press Release 

 

DC2456A - LTC3779EFE Demo Board | 16V ≤ VIN ≤ 120V, VOUT = 48V @ 10A at up to 99% Efficiency

Sep 10th 2017
Demonstration circuit 2456A is a high voltage, high efficiency synchronous buck-boost DC/DC converter with a 16V to 120V input voltage range. It can supply a 10A maximum load current with a 48V output. The demo board features the LTC®3779EFE controller. The constant frequency current mode architecture allows a phase-lockable ...

Demo Board 

 

150V Synchronous Buck-Boost Controller Eliminates Surge Protection Devices & Delivers Up to 99% Efficiency

Sep 5th 2017
MILPITAS, CA and NORWOOD, MA – September 5, 2017 – Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC3779, a high efficiency (up to 99%) 4-switch single inductor synchronous buck-boost DC/DC controller that operates from input voltages above, below or equal to the regulated ...

Press Release 

 

60V 2MHz Buck-Boost Controllers Regulate High Power Voltage and Current with High Efficiency and Low EMI

Keith Szolusha - Applications Engineering Section Leader Aug 24th 2017
Design Note DN567: Introduction Synchronous buck-boost controllers are versatile and highly efficient. They can produce high power as both a boost and a buck with a single inductor, keeping power supply design simple. Normally, a buck-boost controller in a high power application is operated at a standard or low switching frequency, ...

Blog Post 

 

DC2285A - LT8705AEUHF Demo Board | VIN = 36V to 75V, VOUT = 48V @18A

Aug 4th 2017
Demonstration circuit 2285A features two high power high performance buck-boost LT®8705A converters operating in master-slave configuration. The circuit can operate with input voltages above, below or equal to the output voltage. The demo board input range is 36V to 75V. The output is optimized for 48V at 18A, with the output ...

Demo Board 

 

DC2598A - LT8390A Demo Board | VIN = 4V to 24V, (60V transient) with VOUT = 12V at 4A @ 2MHz

Jul 20th 2017
Demonstration circuit 2598A is a 60V 2MHz synchronous buck-boost controller featuring the LT®8390A. It accepts an input voltage from 4V to 24V (with transient to 60V) and regulates 12V output at up to 4A. DC2598A features high efficiency and 2MHz switching frequency, a high speed for a 4-switch buck-boost controller. It ...

Demo Board 

 

DC1757B - LTC3789EGN Buck-Boost Demo Board | VIN = 6V to 36V, V OUT = 12V @ 12A

Jul 7th 2017
Demonstration circuit 1757B is a high efficiency synchronous buck-boost DC/DC converter with a 6V to 36V input voltage range. It can supply a 12A maximum load current with a 12V output. The demo board features the LTC®3789EGN controller. The constant frequency current mode architecture allows a phase-lockable frequency of ...

Demo Board 

 

DC2457A - LT8390 Demo Board | Sync Buck-Boost Controller, 4V ≤ VIN ≤ 60V, VOUT = 12V @ 4A (Fsw=400kHz)

Jan 20th 2017
Demonstration circuit DC2457A is a 12V, 4A, 4-switch synchronous buck-boost regulator featuring low EMI noise and small footprint. It runs at 400kHz switching frequency. Spread spectrum frequency modulation (SSFM) can be turned on with a simple jumper, reducing EMI. DC2457A also comes with other low EMI features including optimized ...

Demo Board 

 

DC2123B - LT3790 Demo Board | Sync Buck-Boost, 8V ≤ VIN ≤ 56V, Vout = 24V at up to 5A

Jan 18th 2017
The DC2123B is a 60V four-switch synchronous buck-boost controller that demonstrates the high power capability of the LT®3790. The output is 24V and the maximum output current is 5A. The switching frequency is 200kHz and efficiency is as high as 98% for a 24V input. The LT3790 is capable of high power operation. DC2123B ...

Demo Board 

 

60V Synchronous 4-Switch Buck-Boost Controller with Spread Spectrum

Nov 23rd 2016
MILPITAS, CA – November 23, 2016 – Linear Technology announces the LT8390, a synchronous buck-boost DC/DC controller that can regulate output voltage, and input or output current from input voltages above, below and equal to the output voltage. Its 4V to 60V input voltage range and 0V to 60V output voltage range ...

Press Release 

 

DC2431A - LT8390EFE Demo Board | Sync Buck-Boost, 9V ≤ VIN ≤ 36V, VOUT = 12V @ 25A

Oct 13th 2016
Demonstration circuit 2431A is a 4-switch synchronous buck-boost regulator that demonstrates the high power capability of the LT®8390. The output is 12V and the maximum output current is 25A for up to 300W power delivery. The switching frequency is 150kHz and efficiency can go higher than 98%. ...

Demo Board LTspice 

 

How NOT to Damage Your Switching Regulator Demo Board

Christopher Jarboe - Associate Applications Engineer Sep 2nd 2016
Introduction: A great way to develop a design is to start with an existing demo board and modify it. While this simplifies the process, there are a few pitfalls to be aware of so that you do not have to spend time tracking down and replacing damaged components. Below are four common ways to damage your circuit. 1) Improper ...

Blog Post 

 

DC2435A-C - LTC7813EUH Demo Board | Sync Boost + Sync Buck, 4V ≤ VIN ≤ 56V; Dual Output, VBoost = 24V @ 3A, Vbuck = 5V @ 8A

May 13th 2016
Demonstration circuit DC2435A is a step-up/down supply featuring the LTC®7813EUH. The LTC7813 is a high performance dual output (buck and boost) synchronous DC/DC switching regulator controller. The board has three different configurations: DC2435A-A: Regulated output voltage of 24 Volt DC2435A-B: Narrowed output voltage ...

Demo Board 

 

DC2435A-B - LTC7813EUH Demo Board | Sync Boost + Sync Buck, 4V ≤ VIN ≤ 56V; VOUT1 (Quasi Regulated) = 19V-28.6V @ 5A

May 13th 2016
Demonstration circuit DC2435A is a step-up/down supply featuring the LTC®7813EUH. The LTC7813 is a high performance dual output (buck and boost) synchronous DC/DC switching regulator controller. The board has three different configurations: DC2435A-A: Regulated output voltage of 24 Volt DC2435A-B: Narrowed output voltage ...

Demo Board 

 

DC2435A-A - LTC7813EUH Demo Board | Sync Boost + Sync Buck, 4V ≤ VIN ≤ 56V; VOUT1 = 24V @ 5A

May 13th 2016
Demonstration circuit DC2435A is a step-up/down supply featuring the LTC®7813EUH. The LTC7813 is a high performance dual output (buck and boost) synchronous DC/DC switching regulator controller. The board has three different configurations: DC2435A-A: Regulated output voltage of 24 Volt DC2435A-B: Narrowed output voltage ...

Demo Board 

 

60V Low IQ Dual Output Boost + Buck Synchronous DC/DC Controller Maintains Voltage Regulation in Automotive Systems

Mar 30th 2016
MILPITAS, CA - March 30, 2016 - Linear Technology Corporation introduces the LTC7813, a dual output (boost + buck), low quiescent current synchronous DC/DC controller. When cascaded, its independent step-up (boost) and step-down (buck) controllers regulate the output voltage from an input voltage that can be above, below, or ...

Press Release 

 

LTC7813 Wide Input Range to 12V/8A Low IQ Cascaded Boost+Buck Regulator (VMID = 14V)

Mar 16th 2016
The LTC®7813 is a high performance synchronous Boost+Buck DC/DC switching regulator controller that drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controllers that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that ...

Circuit 

 

LTC7813 Wide Input Range to 5V/8A Low IQ Cascaded Boost+Buck Regulator (VMID Boosted to 10V)

Mar 16th 2016
The LTC®7813 is a high performance synchronous Boost+Buck DC/DC switching regulator controller that drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controllers that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that ...

Circuit 

 

LTC7813 Wide Input Range to 24V/5A Low IQ Cascaded Boost + Buck Regulator (VMID = 28V)

Mar 16th 2016
The LTC®7813 is a high performance synchronous Boost+Buck DC/DC switching regulator controller that drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controllers that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that ...

Circuit 

 

LTC7813 Low EMI, Wide Input Range Pass-Through Cascaded Boost+Buck Regulator

Mar 16th 2016
The LTC®7813 is a high performance synchronous Boost+Buck DC/DC switching regulator controller that drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controllers that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that ...

Circuit 

 

DC2422A-C - LTC7812EUH Demo Board | Sync Boost + Sync Buck, 4V ≤ VIN ≤ 36V; VBoost = 12V, Vbuck = 12V to 5V @ 8A

Mar 11th 2016
Demonstration circuit DC2422A is a step-up + step-down DC/DC converter featuring the LTC®7812EUH, a high performance dual output (Boost + Buck) synchronous DC/ DC switching regulator controller. This board has a 4V to 36V input voltage range and three different output configurations. DC2422A-A generates a regulated 12V @ ...

Demo Board 

 

DC2422A-B - LTC7812EUH Demo Board | Sync Boost + Sync Buck, 4V ≤ VIN ≤ 36V; VOUT1 (Quasi Regulated) = 10V-16V @ 6-8A

Mar 11th 2016
Demonstration circuit DC2422A is a step-up + step-down DC/DC converter featuring the LTC®7812EUH, a high performance dual output (Boost + Buck) synchronous DC/ DC switching regulator controller. This board has a 4V to 36V input voltage range and three different output configurations. DC2422A-A generates a regulated 12V @ ...

Demo Board 

 

DC2422A-A - LTC7812EUH Demo Board | Sync Buck + Sync Boost, 4V ≤ VIN ≤ 36V; VOUT = 12V @ 8A

Mar 11th 2016
Demonstration circuit DC2422A is a step-up + step-down DC/DC converter featuring the LTC®7812EUH, a high performance dual output (Boost + Buck) synchronous DC/ DC switching regulator controller. This board has a 4V to 36V input voltage range and three different output configurations. DC2422A-A generates a regulated 12V @ ...

Demo Board LTpowerCAD 

 

28μA IQ Dual Output, Boost + Buck Synchronous DC/DC Controller Maintains Regulation in Automotive Systems

Oct 21st 2015
MILPITAS, CA - October 21, 2015 - Linear Technology Corporation introduces the LTC7812, a dual output (boost + buck), low quiescent current synchronous DC/DC controller. When cascaded, its independent step-up (boost) and step-down (buck) controllers regulate the output voltage from an input voltage that can be above, below or ...

Press Release 

 

LTC7812 Wide Input Range to 12V/8A Low IQ, Cascaded Boost+Buck Regulator (VMID = 16V)

Oct 9th 2015
The LTC®7812 is a high performance synchronous Boost+Buck DC/DC switching regulator controller that drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controllers that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that ...

Circuit 

 

LTC7812 Wide Input Range to 5V/5A Low IQ Cascaded Boost + Buck Regulator (VMID Boosted to 10V)

Oct 9th 2015
The LTC®7812 is a high performance synchronous Boost+Buck DC/DC switching regulator controller that drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controllers that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that ...

Circuit 

 

LTC7812 Low EMI, Wide Input Range Pass-Through Cascaded Boost+Buck Regulator

Oct 9th 2015
The LTC®7812 is a high performance synchronous Boost+Buck DC/DC switching regulator controller that drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controllers that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that ...

Circuit 

 

LT3790 240W High Efficiency Parallel Buck-Boost Regulator

Keith Szolusha - Applications Engineering Section Leader Jan 5th 2015
The LT3790 is a 4-switch synchronous buck-boost DC/DC converter that regulates both constant voltage and constant current at up to 98.5% efficiency using only a single inductor. It can deliver hundreds of watts and features a 60V input and output rating, making it an ideal DC/DC voltage regulator and battery charger ...

Blog Post Circuit LTspice 

 

60V, Synchronous Buck-Boost Controller

Nov 26th 2014
MILPITAS, CA - November 26, 2014 - Linear Technology announces the LT3790, a synchronous buck-boost DC/DC controller that delivers up to 250W of power with a single IC. Its 4.7V to 60V input voltage range makes it ideal for a wide variety of automotive and industrial applications. Its output voltage can be set from 0V to 60V, ...

Press Release 

 

LT3790 98% Efficient 60W (12V 5A) Voltage Regulator Runs Down to 3V VIN

Oct 28th 2014
The LT®3790 is a synchronous 4-switch buck-boost voltage/ current regulator controller. The LT3790 can regulate output voltage, output current, or input current with input voltages above, below, or equal to the output voltage. The constant-frequency, current mode architecture allows its frequency to be adjusted or synchronized ...

Circuit 

 

LT3790 98% Efficient 360W (24V 15A) Parallel Voltage Regulators

Oct 28th 2014
The LT®3790 is a synchronous 4-switch buck-boost voltage/ current regulator controller. The LT3790 can regulate output voltage, output current, or input current with input voltages above, below, or equal to the output voltage. The constant-frequency, current mode architecture allows its frequency to be adjusted or synchronized ...

Circuit 

 

LT3790 2.4A Buck-Boost 36V SLA Battery Charger

Oct 28th 2014
The LT®3790 is a synchronous 4-switch buck-boost voltage/ current regulator controller. The LT3790 can regulate output voltage, output current, or input current with input voltages above, below, or equal to the output voltage. The constant-frequency, current mode architecture allows its frequency to be adjusted or synchronized ...

Circuit 

 

DC2253A - LTC3789EGN Demo Board | Sync Buck-Boost, 6V ≤ VIN ≤ 36V; VOUT = 12V @ 25A

Oct 20th 2014
Demonstration circuit 2253A is a high power, high efficiency, 2-phase interleaved synchronous buck-boost converter with a 6V to 36V input range. It can supply a 25A maximum load current with a 12V output. This demo board features 2x LTC3789EGN controllers. ...

Demo Board 

 

LT3791-1 2.5A Buck-Boost 36V SLA Battery Charger

Sep 23rd 2014
The LT®3791-1 is a synchronous 4-switch buck-boost voltage/ current regulator controller. The controller can regulate output voltage, output current, or input current with input voltages above, below, or equal to the output voltage. The constant-frequency, current mode architecture allows its frequency to be adjusted or ...

Circuit 

 

80V Synchronous Buck-Boost Controller Features -55°C to 150°C Operating Junction Temperature Range

Aug 5th 2014
MILPITAS, CA - August 5, 2014 - Linear Technology Corporation announces the H- and MP-grade versions of the LT8705. This high efficiency (up to 98%) synchronous buck-boost DC/DC controller operates from input voltages above, below or equal to the regulated output voltage. The LT8705 operates over a 2.8V to 80V input voltage ...

Press Release 

 

LTC3785-1 10W Li-Ion/9V Wall Adapter Buck-Boost Controller with Power Good

Aug 4th 2014
The LTC3785-1 is a high power synchronous buck-boost controller that drives all N-channel power MOSFETs from input voltages above, below and equal to the output voltage. With an input range of 2.7V to 10V, the LTC3785-1 is well suited for a wide variety of single or dual cell Li-Ion or multi-cell alkaline/NiMH applications. ...

Circuit LTspice 

 

80V Synchronous 4-Switch Buck-Boost Controller Delivers Hundreds of Watts with 99% Efficiency

Keith Szolusha - Applications Engineering Section Leader
Tage Bjorklund - Senior Applications Eng
Apr 2nd 2014
Introduction A DC/DC converter’s efficiency and component temperature are important considerations in high power applications where high current could overheat the catch diode used in an asynchronous buck or boost topology. Replacing the catch diode with a synchronous switch can significantly improve overall converter ...

Blog Post LTspice 

 

LT8705 80V VIN / VOUT Synchronous 4-Switch Buck- Boost DC/DC Controller - Video Product Brief

Bruce Haug - Product Marketing Engineer Jun 11th 2013
The LT®8705 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8V to 80V input and 1.3V to 80V output range, the ...

Video LTspice 

 

DC1924A - LT8705EUHF Demo Board | 36V ≤ VIN ≤ 80V; Vout = 48V @ 5A

Mar 21st 2013
Demonstration circuit 1924A is a high performance buckboost converter featuring the LT®8705 that can operate from input voltages above, below or equal to the output voltage. The demo board input range is 36V to 80V. The output is optimized for 48V at 5A, with the output current limit set at 7A. (The circuit will operate ...

Demo Board LTspice 

 

Convert Any Input Voltage from 2.8V to 80V into a Fixed Output Voltage or Output Current with Up to 98% Efficiency at 250W

Feb 11th 2013
MILPITAS, CA – February 11, 2013 – Linear Technology Corporation announces the LT8705, a very high efficiency (up to 98%) synchronous buck-boost DC/DC controller that operates from input voltages above, below or equal to the regulated output voltage. This device has four feedback loops to regulate the input current/voltage, ...

Press Release 

 

80V, 98% Efficient, 4-Switch Synchronous Buck-Boost Controller IC with 4 Regulation Loops

Al Wu - Design Engineering Manager Feb 11th 2013
In today’s modern electronic systems, the need for power conversion circuits that can do more then simply convert one voltage to another is growing. Some systems require a constant current, constant voltage output, while others may require a limit on the maximum current that can be drawn from the input. Still others may ...

Video 

 

LT8705 Telecom Voltage Stabilizer

Jan 7th 2013
The LT8705 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8V to 80V input and 1.3V to 80V output range, the LT8705 ...

Circuit 

 

LT8705 12V Output Converter Accepts 4V to 80V Input (5.5V Minimum to Start)

Jan 7th 2013
The LT8705 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8V to 80V input and 1.3V to 80V output range, the LT8705 ...

Circuit 

 

LT8705 Bi-Directional Buck-Boost Supercapacitor Backup Supply

Jan 7th 2013
The LT8705 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8V to 80V input and 1.3V to 80V output range, the LT8705 ...

Circuit LTspice 

 

LT3791-1 120W, 24V 5A Output Buck-Boost Voltage Regulator

Aug 6th 2012
The buck-boost converter shown in this figure regulates 24V with 0A–5A load at up to 98.5% efficiency (Figure 2). It operates from an input voltage range of 12V to 58V. Adjustable undervoltage and overvoltage lockout protect the circuit. It has short-circuit protection and the SHORT output flag indicates when there is ...

Circuit LTspice 

 

LT3791-1 98% Efficient 60W (12V 5A) Voltage Regulator Runs Down to 3V VIN

Aug 6th 2012
The LT®3791-1 is a synchronous 4-switch buck-boost voltage/ current regulator controller. The controller can regulate output voltage, output current, or input current with input voltages above, below, or equal to the output voltage. The constant-frequency, current mode architecture allows its frequency to be adjusted or ...

Circuit 

 

DC1881A - LTC3789EUFD Buck-Boost Demo Board | VIN = 6V to 36V, VOUT = 12V @ 2.5A

Jul 26th 2012
Demonstration circuit 1881A is a high efficiency synchronous buck-boost DC/DC converter with 6V to 36V input range. It can supply 2.5A maximum load current at 12V output. The demo board features the LTC®3789EUFD controller. The constant-frequency current mode architecture allows a phase-lockable frequency of up to 600kHz, ...

Demo Board LTpowerCAD 

 

Solar Panel Input 6V to 36VIN to 14.4V at 4.5A Buck Boost Converter 4-Cell LiFePO4 Battery Charger

Jul 23rd 2012
The LTC4000-1 is a high voltage, high performance controller that converts many externally compensated DC/DC power supplies into full-featured battery chargers with maximum power point control. In contrast to the LTC4000, the LTC4000-1 has an input voltage regulation loop instead of the input current regulation loop. Features ...

Circuit 

 

DC1878A - LTC3789EGN Demo Board I Vin Range: 8V to 75V, VOUT: 12V @ 5A

Mar 27th 2012
Demonstration circuit 1878A features the LTC3789EGN, a high efficiency switching step-up/down controller. The input range has been extended to 75V by using a LTC4444-5 MOSFET driver on the input side. The minimum input voltage is 8V. The output voltage is 12V. The board is capable of delivering up to 5A of output current over ...

Demo Board 

 

DC1721A - LTC4000EGN/LTC3789EGN Demo Board u 14.6V, 5A Battery Charger with 6VIN to 36VIN Buck-Boost Converter

Jun 21st 2011
DC1721A - Demo Board for:LTC4000 - High Voltage High Current Controller for Battery Charging and Power ManagementLTC3789 - High Efficiency, Synchronous, 4-Switch Buck-Boost Controller ...

Demo Board 

 

Single Inductor High Efficiency Synchronous Buck-Boost DC/DC Controller

Dec 13th 2010
MILPITAS, CA - December 13, 2010 - Linear Technology Corporation announces the LTC3789, a very high efficiency (up to 98%) synchronous buck-boost DC/DC controller that operates from input voltages above, below or equal to the regulated output voltage. High power circuits that step-up and-down typically rely on transformers or ...

Press Release 

 

DC1523A - LTC3789EGN Demo Board | Sync Buck-Boost Controller, 5V ≤ VIN ≤ 36V, VOUT = 12V @ 5A

Dec 10th 2010
Demonstration circuit 1523A features the LTC®3789EGN, a high efficiency switching step-up/down controller. The DC1523A input range is from 5V to 36V. The output voltage is 12V. The board is capable of delivering up to 5A of output current over the input voltage range. The LTC3789EGN is a high performance switching regulator ...

Demo Board LTpowerCAD LTspice 

 

LT6110 with External RSENSE and LTC3789 Buck-Boost Regulator at 12V

Dec 1st 2010
The LT®6110 is a precision high side current sense with a current mode output, designed for controlling the output voltage of an adjustable power supply or voltage regulator. This can be used to compensate for drops in voltage at a remote load due to resistance in a wire, trace or cable. The LT6110 monitors load current ...

Circuit 

 

12V/5A Output From 4V-38V Automotive Input Supply

Dec 1st 2010
The LTC3789 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The constant-frequency, current mode architecture allows a phase-lockable frequency of up to 600kHz, while an output current feedback loop provides support for battery charging. ...

Circuit LTspice 

 

DC1155A - LTC3780EUH Demo Board | Synchronous Buck-Boost Controller

Jan 15th 2010
Demonstration circuit 1155A is a compact high efficiency synchronous buck-boost DC/DC converter solution featuring the LTC®3780EUH controller. with 6V to 32V input range. It can supply 2A maximum load current at 12V output. The constant frequency current mode architecture allows a phaselockable frequency of up to 400kHz. ...

Demo Board 

 

Small Size and Very High Efficiency Buck-Boost Converter - LTC3780

Henry Zhang - Applications Engineering Manager Jun 15th 2009
Many applications such as battery-powered supply have a wide input voltage that can be lower or higher than the regulated output voltage. The conventional solutions, such as flyback, Sepic or a 2-stage supply are usually complicated and inefficient. The single-stage buck-boost converter only needs a small size inductor with ...

Video 

 

Single Inductor High Efficiency Synchronous Buck-Boost Controller Operates from -55°C to 125°C

Mar 30th 2009
MILPITAS, CA - March 30, 2009 - Linear Technology Corporation announces a new high reliability (MP) grade version of the LTC3780, a very high efficiency synchronous buck-boost switching regulator DC/DC controller that operates from input voltages above, below or equal to the output voltage. High power buck-boost circuits typically ...

Press Release 

 

Single-Inductor Low VIN Buck-Boost DC/DC Controller Optimized for Medium Power Outputs

Oct 3rd 2007
MILPITAS, CA - October 3, 2007 - Linear Technology Corporation introduces the LTC3785, a 96% efficient buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage for powering tablet PCs, handheld instruments, wireless modems, portable media players and a wide variety ...

Press Release 

 

DC957A - LTC3785EUF Demo Board | No Rsense, 2.7V ≤ VIN ≤ 10V, Vout = 3.3V @ 3A

May 14th 2007
Demonstration circuit 957 is a wide input range, 3.3V / 3.0A output synchronous buck-boost controller featuring the LTC3785. This circuit was designed to demonstrate the high levels of performance, efficiency, and small solution size attainable using this part in a buck-boost power supply. It operates at 500kHz and produces ...

Demo Board LTspice 

 

DC686A - LTC3780EG Demo Board | Buck-Boost, 5V to 32Vin, Vout = 12V @ 5A max

Apr 7th 2005
Demonstration circuit 686, featuring the LTC3780 controller, is a high efficiency buck-boost DC/DC converter that can regulate its output from input voltages both above and below the output. The demo board delivers 12V@5A from an input range of 5V to 32V. ...

Demo Board LTpowerCAD LTspice 

 

DC1046A - LTC3780EG/LTC4440ES6 Demo Board | Buck-Boost, Vin: 36V to 72V, Vout 48V/5A

Apr 7th 2005
Demonstration circuit 1046A is a non-isolated, high efficiency buck-boost DC/DC supply featuring LTC®3780EG and LTC®4440ES6. The LTC3780 is a high performance 4-switch synchronous buck boost regulator and the LTC4440 is a 100V-rated FET driver. The input voltage of the demo board is designed for 36V to 72V. The output ...

Demo Board