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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 ...

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 ...

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 ...

Circuit 

 

LTC3265 Low Noise ±15V Outputs from a Single 12V Input

Aug 27th 2015
The LTC®3265 is a low noise dual polarity output power supply including a boost charge pump, an inverting charge pump and two low noise positive and negative LDO post regulators. The boost charge pump powers the positive LDO post regulator while the inverting charge pump powers the negative LDO regulator. Each LDO can ...

Circuit 

 

LTC3265 Low Power ±20V Power Supply from a Single-Ended 15V Input Supply

Aug 27th 2015
The LTC®3265 is a low noise dual polarity output power supply including a boost charge pump, an inverting charge pump and two low noise positive and negative LDO post regulators. The boost charge pump powers the positive LDO post regulator while the inverting charge pump powers the negative LDO regulator. Each LDO can ...

Circuit 

 

LTC3265 Low Noise +7V/–2V Power Supply from a Single-Ended 5V Input Supply (Frequency = 200kHz)

Aug 27th 2015
The LTC®3265 is a low noise dual polarity output power supply including a boost charge pump, an inverting charge pump and two low noise positive and negative LDO post regulators. The boost charge pump powers the positive LDO post regulator while the inverting charge pump powers the negative LDO regulator. Each LDO can ...

Circuit 

 

LT3095 5V to 20V VIN with 5V and 12V Outputs and SEPIC on Channel 2 for Continuous Output Current

Aug 27th 2015
The LT®3095 generates two low-noise bias supplies from a common input voltage ranging from 3V to 20V. Each channel includes a fixed frequency, peak current-mode step-up switching regulator and a low-noise, singleresistor- programmable 50mA linear regulator. The linear regulator’s high power supply ripple rejection ...

Circuit 

 

LTC3110 3.3V/2A Output from Stack of Supercapacitors Backup/Recharge Application with Active Voltage Balancing

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

Circuit 

 

LTC3110 1.8V/300mA Output from Single Capacitor Discharged from 2.5V to 1V and with Reserve Available Down to 0.3V

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

Circuit 

 

LTC3110 500mA USB Charge/Backup Application with Variable Charging Power, PCHRG, Depending on System Load

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

Circuit 

 

LTC3110 Autonomous Backup and Recharge Application with Input Isolation Switch

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

Circuit 

 

LTC3110 Lead Acid Battery Backup/Recharge Application

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

Circuit 

 

LTC3121 2 AA Cell to 12V Synchronous Boost Converter, 100mA

Aug 27th 2015
The LTC®3121 is a synchronous step-up DC/DC converter with true output disconnect and inrush current limiting. The 1.5A current limit along with the ability to program output voltages up to 15V makes the LTC3121 well suited for a variety of demanding applications. Once started, operation will continue with inputs down ...

Circuit 

 

LTC3121 3.3V to 12V, 2MHz Synchronous Boost Converter with Output Disconnect, 250mA

Aug 27th 2015
The LTC®3121 is a synchronous step-up DC/DC converter with true output disconnect and inrush current limiting. The 1.5A current limit along with the ability to program output voltages up to 15V makes the LTC3121 well suited for a variety of demanding applications. Once started, operation will continue with inputs down ...

Circuit 

 

LTC3121 USB/Battery Powered Synchronous Boost Converter, 4.3V to 5V, 500mA

Aug 27th 2015
The LTC®3121 is a synchronous step-up DC/DC converter with true output disconnect and inrush current limiting. The 1.5A current limit along with the ability to program output voltages up to 15V makes the LTC3121 well suited for a variety of demanding applications. Once started, operation will continue with inputs down ...

Circuit 

 

LTC3121 5V to Dual Output Synchronous Boost Converter, ±15V @ 140mA

Aug 27th 2015
The LTC®3121 is a synchronous step-up DC/DC converter with true output disconnect and inrush current limiting. The 1.5A current limit along with the ability to program output voltages up to 15V makes the LTC3121 well suited for a variety of demanding applications. Once started, operation will continue with inputs down ...

Circuit 

 

LTC3121 Single Li-Cell 3-LED Driver, 2.5V/4.2V to 175mA

Aug 27th 2015
The LTC®3121 is a synchronous step-up DC/DC converter with true output disconnect and inrush current limiting. The 1.5A current limit along with the ability to program output voltages up to 15V makes the LTC3121 well suited for a variety of demanding applications. Once started, operation will continue with inputs down ...

Circuit 

 

LTC3121 Dual Supercapacitor Backup Power Supply, 0.5V to 5V

Aug 27th 2015
The LTC®3121 is a synchronous step-up DC/DC converter with true output disconnect and inrush current limiting. The 1.5A current limit along with the ability to program output voltages up to 15V makes the LTC3121 well suited for a variety of demanding applications. Once started, operation will continue with inputs down ...

Circuit 

 

LT3909 2-String × 20mA Driver for Seven White LEDs/String

Aug 27th 2015
The LT®3909 is a 2-string × 50mA LED driver with a fixed 2MHz step-up DC/DC converter capable of driving up to 36V of LEDs. Each LED string contains an accurate high-side current source with ±1.8% current matching. Output voltage adapts to variations in LED VF for optimum efficiency. ...

Circuit 

 

LT3909 2-String × 40mA Buck-Boost Mode Driver for Five White LEDs/String

Aug 27th 2015
The LT®3909 is a 2-string × 50mA LED driver with a fixed 2MHz step-up DC/DC converter capable of driving up to 36V of LEDs. Each LED string contains an accurate high-side current source with ±1.8% current matching. Output voltage adapts to variations in LED VF for optimum efficiency. ...

Circuit 

 

LT3909 12V Input, 1 String × 100mA Driver for Ten White LEDs

Aug 27th 2015
The LT®3909 is a 2-string × 50mA LED driver with a fixed 2MHz step-up DC/DC converter capable of driving up to 36V of LEDs. Each LED string contains an accurate high-side current source with ±1.8% current matching. Output voltage adapts to variations in LED VF for optimum efficiency. ...

Circuit 

 

LT3909 2-String × 20mA, 2MHz LED Driver for Ten White LEDs/String

Aug 27th 2015
The LT®3909 is a 2-string × 50mA LED driver with a fixed 2MHz step-up DC/DC converter capable of driving up to 36V of LEDs. Each LED string contains an accurate high-side current source with ±1.8% current matching. Output voltage adapts to variations in LED VF for optimum efficiency. ...

Circuit 

 

LTC3877 Four Phase, 120A VID-Controlled Converter Using LTC3877 and LTC3874

Aug 27th 2015
The LTC®3877 is a VID-programmable, constant frequency current mode step-down controller using an advanced and proprietary architecture. This new architecture enhances the signal-to-noise ratio of the current sense signal, allowing the use of very low DC resistance power inductors to maximize efficiency in high current ...

Circuit 

 

LTC3877 Dual Output, 400kHz Converter with Fixed and VID-Controlled Outputs

Aug 27th 2015
The LTC®3877 is a VID-programmable, constant frequency current mode step-down controller using an advanced and proprietary architecture. This new architecture enhances the signal-to-noise ratio of the current sense signal, allowing the use of very low DC resistance power inductors to maximize efficiency in high current ...

Circuit 

 

LT8602 Automotive 6-42V Input Steps Down to 5V, 3.3V, 1.8V and 1.2V

Aug 18th 2015
The LT®8602 is a quad channel, current mode, monolithic buck switching regulator with a programmable power-on reset. All regulators are synchronized to a single oscillator with an adjustable frequency from 250kHz to 2.2MHz. The LT8602 can be configured for micropower Burst Mode operation or pulse-skipping operation at ...

Circuit 

 

LT8602 10V to 42V Input Steps Down to 5V, 2.5V, 1.8V and 8V

Aug 18th 2015
The LT®8602 is a quad channel, current mode, monolithic buck switching regulator with a programmable power-on reset. All regulators are synchronized to a single oscillator with an adjustable frequency from 250kHz to 2.2MHz. The LT8602 can be configured for micropower Burst Mode operation or pulse-skipping operation at ...

Circuit 

 

LT8494 1.5MHz, 12V Output @ 0.5A SEPIC Converter

Aug 18th 2015
The LT®8494 is an adjustable frequency (250kHz to 1.5MHz) monolithic switching regulator. Quiescent current can be less than 7μA when operating and is ~0.3μA when SWEN is low. The LT8494 can be configured as either a SEPIC, boost or flyback converter. ...

Circuit 

 

LT8494 450kHz, Wide Input Range 12V Output @ 0.65A SEPIC Converter

Aug 18th 2015
The LT®8494 is an adjustable frequency (250kHz to 1.5MHz) monolithic switching regulator. Quiescent current can be less than 7μA when operating and is ~0.3μA when SWEN is low. The LT8494 can be configured as either a SEPIC, boost or flyback converter. ...

Circuit 

 

LTC4015 2-Cell Li-Ion Battery Charger, 8A Charge Current

Aug 18th 2015
The LTC®4015 is a complete synchronous buck controller/ charger with pin selectable, chemistry specific charging and termination algorithms. ...

Circuit 

 

LTC4015 Solar Lead-Acid Battery Charger, 10.7A Charge Current

Aug 18th 2015
The LTC®4015 is a complete synchronous buck controller/ charger with pin selectable, chemistry specific charging and termination algorithms. ...

Circuit 

 

LT8631 1MHz, 30Vin, 3.3Vout, 1A Step-Down Converter

Jul 31st 2015
The LT®8631 is a current mode PWM step-down DC/DC converter with internal synchronous switches that provide current for output loads up to 1A. The wide input range of 3V to 100V makes the LT8631 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom ...

Circuit 

 

LT8631 1MHz, 50Vin, 5Vout, 1A Step-Down Converter

Jul 31st 2015
The LT®8631 is a current mode PWM step-down DC/DC converter with internal synchronous switches that provide current for output loads up to 1A. The wide input range of 3V to 100V makes the LT8631 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom ...

Circuit 

 

LT8631 1MHz, 100Vin, 24Vout, 0.5A Step-Down Converter

Jul 31st 2015
The LT®8631 is a current mode PWM step-down DC/DC converter with internal synchronous switches that provide current for output loads up to 1A. The wide input range of 3V to 100V makes the LT8631 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom ...

Circuit 

 

LT8631 100Vin, 5Vout, Low Ripple 1A Step-Down Converter

Jul 31st 2015
The LT®8631 is a current mode PWM step-down DC/DC converter with internal synchronous switches that provide current for output loads up to 1A. The wide input range of 3V to 100V makes the LT8631 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom ...

Circuit 

 

LT8631 200kHz, 50Vin, 1.8Vout, 1A Step-Down Converter

Jul 31st 2015
The LT®8631 is a current mode PWM step-down DC/DC converter with internal synchronous switches that provide current for output loads up to 1A. The wide input range of 3V to 100V makes the LT8631 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom ...

Circuit 

 

LT8631 400kHz, 100Vin, 5Vout/1A High Voltage and High Temperature Step-Down Converter

Jul 31st 2015
The LT®8631 is a current mode PWM step-down DC/DC converter with internal synchronous switches that provide current for output loads up to 1A. The wide input range of 3V to 100V makes the LT8631 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom ...

Circuit 

 

LT8631 100Vin, 12Vout, 1A, Step-Down Converter

Jul 31st 2015
The LT®8631 is a current mode PWM step-down DC/DC converter with internal synchronous switches that provide current for output loads up to 1A. The wide input range of 3V to 100V makes the LT8631 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom ...

Circuit 

 

Achieving Low On-Resistance with Guaranteed SOA in High Current Hot Swap Applications

Dan Eddleman - Applications Engineer Jul 29th 2015
Introduction The requirement for live insertion and removal in high current backplane applications demands MOSFETs that exhibit both low on-resistance during steady state operation and high Safe Operating Area (SOA) for transient conditions. Often, modern MOSFETs optimized for low on-resistance are unsuitable for high SOA Hot ...

Blog Post Circuit LTspiceIV 

 

LTM4622 1.5V and 1V Dual Output DC/DC Step-Down Ultrathin uModule Regulator

Jul 17th 2015
The LTM4622 is a complete dual 2.5A step-down switching mode µModule® (micromodule) regulator in a tiny ultrathin 6.25mm × 6.25mm × 1.82mm LGA package. Includedinthepackage are the switchingcontroller, power FETs, inductor and support components. Operating over an input voltage range of 3.6V to 20V, the ...

Circuit 

 

Altera Arria 10 FPGA Development Kit

Jul 17th 2015
Linear Technology Corporation announces power management solutions that are used on the 20-nm Arria 10 FPGA Development Kit. The LTC3877 + LTC3874 are used to provide power for the Core Rail by taking advantage of the 6-bit parallel VID that interfaces with the Arria 10’s SmartVID to reduce the FPGA’s static and ...

Circuit 

 

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