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Solutions Search - LDO Plus

DC2246B - LT3042EDD Demo Board | Ultralow Noise, Ultrahigh PSRR RF LDO, 3.8V ≤ VIN ≤ 20V, VOUT = 3.3V @ 200mA

Mar 28th 2017
DC2246B is a linear regulator demonstration circuit featuring the LT®3042EDD, which is a 200mA, ultralow noise, and ultrahigh power supply rejection ratio (PSRR) RF low dropout (LDO) regulator with programmable current limit. DC2246B operates over an input voltage range of 3.8V to 20V and is configured for 3.3V at its output. ...

Demo Board 

 

Low Noise Power Supplies Come in Many Flavors: Part 1 - Linear Regulators

Kevin B. Scott - Senior Strategic Marketing Engineer Mar 23rd 2017
(In this three part series, we look at low noise portable power supplies using different topologies. Using a low noise linear regulator is a no-brainer for many of these applications, but in applications where a linear regulator may not be desired (due to efficiency, power dissipation or other constraints), low noise solutions ...

Blog Post 

 

40VIN, 2.1A Rail-to-Rail LDO+ Now Offered in High Temp, 150°C H-Grade in TSSOP Package

Sep 22nd 2016
MILPITAS, CA – September 22, 2016 – Linear Technology Corporation announces a new higher temperature “H-grade” version of the LT3086 in the TSSOP package. The LT3086 is part of Linear’s feature-rich LDO+™ family, offering significant functionality previously unavailable in linear regulators. ...

Press Release 

 

LT3090 5V to +/-2.5V Low Noise Power Supply

Sep 15th 2016
The LT®3090 is a 600mA, low dropout negative linear regulator that is easily parallelable to increase output current or spread heat on surface mounted boards. Designed with a precision current reference followed by a high performance rail-to-rail voltage buffer, this regulator finds use in applications requiring precision ...

Circuit 

 

LT3090 Two-Terminal Current Source

Sep 15th 2016
The LT®3090 is a 600mA, low dropout negative linear regulator that is easily parallelable to increase output current or spread heat on surface mounted boards. Designed with a precision current reference followed by a high performance rail-to-rail voltage buffer, this regulator finds use in applications requiring precision ...

Circuit 

 

LT3090 500mA LED Driver with Grounded LED Tab (Heatsink)

Sep 15th 2016
The LT®3090 is a 600mA, low dropout negative linear regulator that is easily parallelable to increase output current or spread heat on surface mounted boards. Designed with a precision current reference followed by a high performance rail-to-rail voltage buffer, this regulator finds use in applications requiring precision ...

Circuit 

 

DC2429A - LT3042 Low Noise PLL/VCO Power Supply Board with Onboard 100MHz Reference Frequency

Aug 23rd 2016
Demonstration Circuit 2429A is a PLL/VCO Supply and Reference Frequency Board that features the LT3042, an ultralow noise and ultrahigh PSRR RF linear regulator. When powered from a 6V to 20V lab or wall wart supply, the DC2429A produces four ultralow noise supplies using seven LT3042s. These supplies include a fixed 3.3V/800mA ...

Demo Board 

 

Low Voltage Power Supplies

Robert Dobkin - Chief Technical Officer Jun 9th 2016
In this video, Linear Technology Co-founder and CTO Bob Dobkin discusses low voltage power supplies less than half a volt. Most of today's power supplies have a reference of 0.6 volts, which means the output voltage must be greater than 0.6 volts. Several years ago, Linear Technology pioneered a new type of current source reference ...

Video 

 

DC2177A-C - LT3063 Demo Board | Low Noise LDO with Output Discharge, 2.1V ≤ VIN ≤ 45V, Vout = 1.2V/1.5V/1.8V/2V/2.5V/3.3V/5V/Adj @ 200mA

May 9th 2016
Demonstration circuit 2177A-C features the LT®3063, a micropower, low noise and low dropout voltage linear regulator with active output discharge. The input voltage ranges from 2.1V to 45V and the maximum output current is 200mA. A resistor divider determines the output voltage, and a jumper adjusts the divider to set the ...

Demo Board 

 

DC2318A - LT3089EDF Demo Board | Linear Regulator with Safe Operating Area (SOA), 2.5V ≤ VIN ≤ 36V, Vout = 1.2V/1.5V/1.8V/2.5V/3.3V/5V/Adj @ 800mA

Apr 22nd 2016
Demonstration circuit 2276A is an 800mA low dropout rugged linear regulator featuring the LT®3089. It operates from 2.5V to 36V and has a jumper-selectable output voltage of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V or user-selectable between 0V and 34.5V. Key features of the IC are an extended safe operating area (SOA), output ...

Demo Board 

 

AN159: Measuring 2nV/√Hz Noise and 120dB Supply Rejection on Linear Regulators - The Quest for Quiet

Apr 4th 2016
AN159: Introduction A quiet, well regulated supply is important for optimum performance with a number of circuit applications. Voltage controlled oscillators (VCOs) and precision voltage controlled crystal oscillators (VCXOs) respond to small changes in their supply very quickly. Phase-locked loops (PLLs) require a stable supply ...

Blog Post 

 

DC2437A - LT3066 Demo Board | Low Noise Linear Regulator, Active Output Discharge, 1.8V ≤ VIN ≤ 45V, Vout = 1.2/1.5/1.8/2.0/2.5/3.3/5V @ 500mA

Mar 11th 2016
Demonstration circuit 2437A is an adjustable 500mA linear regulator featuring the LT®3066. The LT3066 is a micropower, low noise and low dropout voltage linear regulator that operates over a 1.8V to 45V input voltage range. The device supplies 500mA of output current with a typical dropout voltage of 300mV. Jumper-selectable ...

Demo Board LTspice 

 

36V, 800mA Robust Linear Regulator Has Extended SOA Plus Current & Temperature Monitor Outputs

Feb 4th 2016
MILPITAS, CA - February 4, 2016 - Linear Technology Corporation announces the LT3089, a rugged 800mA wide input voltage range linear regulator with key usability, monitoring and protection features. The device has an extended safe operating area (SOA) compared to existing regulators, making it ideal for high input-to-output ...

Press Release 

 

LT3089 Load Sharing Without Ballast Resistors

Feb 1st 2016
The LT®3089 is an 800mA low dropout linear regulator designed for rugged industrial applications. Key features of the IC are the extended safe operating area (SOA), output current monitor, temperature monitor and programmable current limit. The LT3089 can be paralleled for higher output current or heat spreading. The device ...

Circuit 

 

LT3089 Load Current Sharing Without Ballasting

Feb 1st 2016
The LT®3089 is an 800mA low dropout linear regulator designed for rugged industrial applications. Key features of the IC are the extended safe operating area (SOA), output current monitor, temperature monitor and programmable current limit. The LT3089 can be paralleled for higher output current or heat spreading. The device ...

Circuit 

 

Shutdown with the LT3080x Current Source Reference Linear Regulators

Kevin B. Scott - Senior Strategic Marketing Engineer
Tony Bonte - Design Manager
Jan 21st 2016
Current Source Reference Linear Regulators In many low noise applications, a linear regulator is an ideal solution for the power conversion due to its very low output voltage noise and low electromagnetic noise generation (compared to a charge pump or a switching regulator). The LT308x linear regulator family is ideal for these ...

Blog Post 

 

45V 500mA LDO Offers Low 25μVRMS Noise, 60dB PSRR at 1MHz & Active Output Discharge for Load Protection

Jan 12th 2016
MILPITAS, CA - January 12, 2016 - Linear Technology Corporation announces the LT3066, a high voltage, low noise, low dropout voltage linear regulator offering precision, programmable current limit, active discharge, a power good flag and improved power supply rejection ratio (PSRR) capability. The device delivers up to 500mA ...

Press Release 

 

Stratix V Advanced System Development Board

Oct 22nd 2015
The Stratix® V Advanced Systems Development Kit is a complete systems design environment that includes both the hardware and software needed to begin architecture development and system design using Stratix V FPGAs. The PCI Express® (PCIe®)-based form-factor board combined with a one-year license for the ...

Circuit 

 

DC2276A - LT3091EDE Demo Board | Negative LDO with Prog Current Limit, -1.5V ≤ VIN ≤ -36V, Vout = -1.25V/-2.5V/-5V/-12V/-15V @ 1.5A

Sep 29th 2015
Demonstration circuit DC2276A is a 1.5A low dropout negative linear regulator featuring the LT®3091. This device is designed for applications requiring a negative output voltage,  output adjustability from -32V down to 0V, and low dropout voltage. The input voltage range is -1.5V to -36V and the output voltage is jumper ...

Demo Board LTspice 

 

1.5A Negative LDO+ Offers Rail-to-Rail Operation, Programmable Current Limit & Output Current Monitor

Sep 21st 2015
MILPITAS, CA - September 21, 2015 - Linear Technology Corporation announces the LT3091, the latest addition to our LDO+™ family, a 1.5A low dropout negative linear regulator featuring low noise, rail-to-rail operation, precision programmable current limit and a bidirectional output current monitor. The device is cable-drop ...

Press Release 

 

LT3091 Parallel Linear Regulators For -10V to -3Vin, -2.5Vout@3A

Aug 28th 2015
The LT®3091 is a 1.5A, low dropout negative linear regulator that is easily paralleled to increase output current or spread heat on surface mounted boards. Designed with a precision current reference followed by a high performance rail-to-rail voltage buffer, this regulator finds use in applications requiring precision output, ...

Circuit 

 

LT3091 -10V to -3Vin, -2.5Vout@1.5A Negative Output Linear Regulator

Aug 28th 2015
The LT®3091 is a 1.5A, low dropout negative linear regulator that is easily paralleled to increase output current or spread heat on surface mounted boards. Designed with a precision current reference followed by a high performance rail-to-rail voltage buffer, this regulator finds use in applications requiring precision output, ...

Circuit 

 

LT3091 Floating 3-Terminal Regulator (for Arbitrarily High Voltage Applications)

Aug 28th 2015
The LT®3091 is a 1.5A, low dropout negative linear regulator that is easily paralleled to increase output current or spread heat on surface mounted boards. Designed with a precision current reference followed by a high performance rail-to-rail voltage buffer, this regulator finds use in applications requiring precision output, ...

Circuit 

 

Increasing Output Current of the Ultralow Noise, Ultrahigh PSRR LT3042 200mA Linear Regulator

Kevin B. Scott - Senior Strategic Marketing Engineer
Amit Patel
Dawson Huang
Aug 17th 2015
The LT0342 is a 200mA, 1.8V to 20V input, linear regulator that targets low noise RF and wireless circuits. It features an industry-leading 0.8µVRMS output noise (10Hz to 100kHz) and an impressive 79dB PSRR at 1MHz. Several customers have asked for ways to increase the current above 200mA while still maintaining low noise ...

Blog Post 

 

Ultralow Noise and Ultrahigh PSRR

Amit Patel Jun 17th 2015
When it comes to powering noise-sensitive analog/RF applications, low dropout (LDO) linear regulators are generally preferred over their switching counterparts. Low noise LDOs power a wide range of analog/RF designs, including frequency synthesizers (PLLs/VCOs), RF mixers and modulators, high speed and high resolution data converters ...

Video 

 

Paralleling Linear Regulators Made Easy

Kevin B. Scott - Senior Strategic Marketing Engineer May 21st 2015
Linear regulators provide a simple, low noise solution for dc-dc regulation. However, at higher Vin-Vout differentials the low efficiency and high power dissipation of linear regulators limits the ammount of output current that can realistically be delivered.  Connecting multiple linear regulators in parallel spreads the ...

Blog Post 

 

LT3042 5V VIN to 3V VOUT with 0.8μVRMS Integrated Noise

Mar 4th 2015
The LT®3042 is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive RF applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3042 can be easily paralleled to further reduce noise, ...

Circuit 

 

LT3042 Ultralow Noise Higher Current Regulator with External PNP

Mar 4th 2015
The LT®3042 is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive RF applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3042 can be easily paralleled to further reduce noise, ...

Circuit 

 

Paralleling Multiple LT3042s for Higher Output Current

Mar 4th 2015
The LT®3042 is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive RF applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3042 can be easily paralleled to further reduce noise, ...

Circuit 

 

LT3042 Ultralow Noise 5Vin to 2Vout Higher Current (1A) Regulator with External NPN

Mar 4th 2015
The LT®3042 is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive RF applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3042 can be easily paralleled to further reduce noise, ...

Circuit 

 

LT3042 5Vin to 3.3Vout @ 400mA Using Parallel Devices

Mar 4th 2015
The LT®3042 is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive RF applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3042 can be easily paralleled to further reduce noise, ...

Circuit 

 

LT3071 1.2V To 0.9V, 5A Regulator

Feb 24th 2015
The LT3071 is a low voltage, UltraFast™ transient response linear regulator. The device supplies up to 5A of output current with a typical dropout voltage of 85mV. A 0.01μF reference bypass capacitor decreases output voltage noise to 25μVRMS. The LT3071’s high bandwidth permits the use of low ESR ceramic capacitors, ...

Circuit 

 

LT3070 Triple Output Supply Providing 1V, 8A and 1.8V, 5A and 1.5V, 3A

Feb 24th 2015
The LT3070 is a low voltage, UltraFast™ transient response linear regulator. The device supplies up to 5A of output current with a typical dropout voltage of 85mV. A 0.01μF reference bypass capacitor decreases output voltage noise to 25μVRMS. The LT3070’s high bandwidth permits the use of low ESR ceramic capacitors, ...

Circuit 

 

LT3070 1.5V to 1.2V 5A Linear Regulator

Feb 24th 2015
The LT3070 is a low voltage, UltraFast™ transient response linear regulator. The device supplies up to 5A of output current with a typical dropout voltage of 85mV. A 0.01μF reference bypass capacitor decreases output voltage noise to 25μVRMS. The LT3070’s high bandwidth permits the use of low ESR ceramic capacitors, ...

Circuit 

 

20V, 200mA RF LDO with Ultralow (0.8μV ) Noise & 79dB PSRR at 1MHz Powers NoiseSensitive

Feb 23rd 2015
MILPITAS, CA - February 23, 2015 - Linear Technology Corporation announces the LT3042, a leading-edge, ultralow noise, ultrahigh power supply ripple rejection (PSRR) low dropout voltage linear regulator. Its unique design features ultralow spot noise of only 2nV/√Hz at 10kHz and 0.8µVRMS integrated output noise across a wide ...

Press Release 

 

Loop Gain and its Effect on Analog Control Systems

Simon Bramble - Field Applications Engineer
Gabino Alonso - Strategic Marketing Engineer
Jan 26th 2015
Abstract This article brings together the ideas of open loop gain, closed loop gain, gain and phase margin, minimum gain stability and shows how these parameters are interrelated in a feedback system. It examines loop gain in terms of a theoretical control system as well as practical electronic circuits, including linear regulators. Introduction Bob ...

Blog Post LTspice 

 

Xilinx Zynq Networking Platform

Oct 30th 2014
HiTech Global's HTG-Z100, populated with the Xilinx Zynq XC7Z100, is an ideal platform for applications requiring embedded processing power, high-speed networking interfaces, and high-performance Xilinx Zynq Networking Platform     Rail / Function  Part Number General Description ...

Circuit LTpowerPlanner 

 

Xilinx Virtex-7 10G/40G/100G Optical Interface FPGA Platform

Oct 30th 2014
HiTech Global's HTG707, populated with the Xilinx Virtex-7 X485T, X690T, or V2000T FPGA, is a development platform that delivers the most fundamental functional blocks required for building 10G/40G/100G subsystems.   Rail / Function  Part Number General Description of Part 1V: VCC_CORE   LTM4620 Dual ...

Circuit 

 

Xilinx Virtex™ -7 High-End Networking Card With Dual CXP Ports

Oct 30th 2014
HiTech Global's HTG-V7-PCIE-CXP board powered by Xilinx Virtex-7 V2000T, V585, or X690T, the HTG-710 is ideal for High-End networking applications requiring multi port data transfer above 100Gbps. This board is also ideal for ASIC/SOC prototyping, high-performance computing, high-end image processing, PCI Express Gen 2 ...

Circuit 

 

Xilinx Virtex 7 PCI Express Gen 3 /100Gig Networking Card

Oct 30th 2014
HiTech Global's HTG-V7-G3PCIE board powered by Xilinx Virtex-7 X415T, X485T, X550T, or X690T, the HTG-703 board is ideal for high performance FPGA development requiring access to 10G/40G/100G optical peripherals, high speed expansion connectors, large density memory, and high bandwidth PC interface.The HTG-703 is supported ...

Circuit 

 

Xilinx Virtex-7 V2000T PCI Express Development Board

Oct 30th 2014
HiTech Global's HTG700, populated with the Xilinx Virtex-7 V2000T, V585, or X690T is ideal for ASIC/SOC prototyping, high-performance computing, high-end image processing, PCI Express Gen 2 & 3 development, general purpose FPGA development, and/or applications requiring high speed serial transceivers (up to 12.5Gbps). Linear ...

Circuit 

 

Xilinx Kintex®-7 PCI Express Development Board

Oct 17th 2014
HiTech Global's HTG-K700 board is populated with the Xilinx Kintex-7 K325T or K410T FPGA, and is supported by 8-lane PCI Express Gen2 (hard)/Gen 3 (soft), FPGA Mezzanine Connector (FMC) and DDR3 SODIMM. .   Rail / Function  Part Number General Description of Part 1.0V: Vcc_Core (FPGA ...

Circuit 

 

Xilinx FPGA Solutions

Oct 17th 2014
Development Kits Linear Technology has worked closely with Xilinx and Strategic Xilinx Partners to develop proven solutions for Xilinx based systems. Below you will find a host of useful tools that will facilitate your design efforts. Linear Technology highly recommends that prior to finalizing your design that you contact ...

Circuit 

 

45V Input 100mA LDO Offers Active Output Discharge

Aug 13th 2014
MILPITAS, CA - August 13, 2014 - Linear Technology Corporation announces the LT3061, a high voltage, low noise, low dropout voltage linear regulator with active output discharge. The device delivers up to 100mA of continuous output current with a 250mV dropout voltage at full load. The LT3061 includes an internal NMOS pull-down ...

Press Release 

 

45V Input 200mA LDO Offers Active Output Discharge

Jun 17th 2014
MILPITAS, CA - June 17, 2014 - Linear Technology Corporation announces the LT3063, a high voltage, low noise, low dropout voltage linear regulator with active output discharge. The IC delivers up to 200mA of continuous output current with a 300mV dropout voltage at full load. The LT3063 includes an internal NMOS pull-down that discharges ...

Press Release 

 

40VIN, 2.1A Rail-to-Rail LDO+ Offers Extensive Monitoring, Protection & Cable Drop Compensation

Dec 18th 2013
MILPITAS, CA – December 18, 2013 – Linear Technology Corporation announces the LT3086, the latest addition to the LDO+™ family, offering significant functionality previously unavailable in linear regulators. The 40V, 2.1A low dropout linear regulator (LDO) includes current monitoring with externally settable current limit ...

Press Release 

 

600mA Negative LDO+ Offers Rail-to-Rail Operation, Programmable Current Limit & Output Current Monitor

Sep 26th 2013
MILPITAS, CA – September 26, 2013 – Linear Technology Corporation announces the LT3090, the newest member of our LDO+™ family, a 600mA low dropout negative linear regulator featuring low noise, rail-to-rail operation, precision programmable current limit and a bidirectional output current monitor. The device is cable-drop compensation ...

Press Release 

 

40V, 1.5A Robust Linear Regulator Has Current & Temperature Monitor Outputs

Jun 24th 2013
MILPITAS, CA – June 24, 2013 – Linear Technology Corporation announces the LT3081, a rugged 1.5A wide input voltage range linear regulator with key usability, monitoring and protection features. The device has an extended safe operating area (SOA) compared to existing regulators, making it ideal for high input-to-output ...

Press Release 

 

45V 500mA LDO Offers 25μVRMS Noise, Programmable Current Limit & Diagnostic Information

Jun 3rd 2013
MILPITAS, CA – June 3, 2013 – Linear Technology Corporation announces the LT3055, a high voltage, low noise, low dropout voltage linear regulator offering precision, programmable current limit and diagnostic capability. The device delivers up to 500mA output current with a 350mV dropout voltage at full load. The LT3055 features ...

Press Release 

 

UltraFast™ Digitally Programmable 5A LDO Features Analog Margining, Output Current Monitor, 85mV Dropout & 25μVRMS Noise

May 12th 2010
MILPITAS, CA — May 12, 2010 — Linear Technology Corporation announces the LT3071, the second in a family of digitally programmable linear regulators with the lowest dropout voltage, lowest noise and fastest transient response of any monolithic 5A LDO currently available. Dropout voltage at 5A is an ultralow 85mV. Output ...

Press Release 

 

45V 100mA LDO Offers 30μVRMS Noise, Programmable Current Limit & Diagnostic Information

Sep 14th 2009
MILPITAS, CA - September 14, 2009 - Linear Technology Corporation announces the LT3050, a high voltage, low noise, low dropout voltage linear regulator offering precision, programmable current limit and diagnostic capability. The device delivers up to 100mA output current with a 340mV dropout voltage at full load. The LT3050 ...

Press Release 

 

UltraFast Digitally Programmable 5A LDO Features 85mV Dropout & 25uVRMS Noise

Jul 27th 2009
MILPITAS, CA - July 27, 2009 - Linear Technology Corporation announces the LT3070, a digitally programmable linear regulator with the lowest dropout voltage, lowest noise and fastest transient response of any monolithic 5A LDO currently available. Dropout voltage at 5A is an ultralow 85mV. Output voltage noise at 5A is only ...

Press Release