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Solutions Search - LTC3639 - High Efficiency, 150V 100mA Synchronous Step-Down Regulator

LTC3895 High Efficiency 140V to 3.3V Step-Down Converter

May 2nd 2016
The LTC®3895 is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage that can operate from input voltages up to 140V. A constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz. ...

Circuit 

 

4V to 135V Input to —15V Output Positive-to-Negative Regulator

Sep 17th 2014
An additional useful application for the LTC3639 is to generate a negative voltage from a positive one. The part’s wide voltage range makes even large negative output voltages realizable. This figure shows the implementation of a –15V output regulator from a 4V to 135V input. Since the output is connected to the ...

Circuit 

 

High Efficiency 100mA Synchronous Buck Converter with Wide Input Range from 4V to 150V

Charlie Zhao - Applications Eng Sep 17th 2014
Introduction The wide 4V to 150V input range of the LTC®3639 stepdown DC/DC converter allows automotive, avionics and distributed power systems to: Cover extensive transient requirements Enable multiple wide-ranging input power sources, such as a high voltage DC bus with a low voltage battery backup Create a ...

Blog Post LTspice 

 

150V, 100mA Step-Down Regulator Requires Only Three External Components

Jason Leonard - Design Manager Jun 18th 2013
The LTC3639 step-down regulator integrates key high performance features into one compact IC. It is capable of up to 150V input voltage and 100mA output current, utilizing synchronous rectification and low quiescent current to maintain high efficiency over a broad spectrum of load current. Its adjustable output can be programmed ...

Video 

 

100mA Synchronous Buck Converter Features 150V Input Capability & Just 12μA Quiescent Current

May 13th 2013
MILPITAS, CA –May 13, 2013 – Linear Technology announces the LTC3639, a 150V input-capable synchronous buck converter that delivers up to 100mA of continuous output current. It operates from an input voltage range of 4.5V to 150V, eliminating the need for an external transient suspension device. The LTC3639 utilizes internal synchronous ...

Press Release 

 

DC1901A - LTC3639EMSE Demo Board | Sync Buck, 4V ≤ VIN ≤ 150V, Vout = 1.8V/3.3V/5V/Adj @ 100mA

Apr 16th 2013
Demonstration circuit 1901A is a 150V input, 100mA output DC/DC power supply featuring the LTC3639. The IC operates in a high efficiency Burst Mode® operation and includes internal high and low side power MOSFETs. The board will accept an input voltage between 4V and 150V, and provide jumper selected output voltages of 1.8V, ...

Demo Board 

 

LTC3639 40V to 150V Input to 36V/100mA Output with 25mA Input Current Limit

Apr 15th 2013
The LTC®3639 is a high efficiency step-down DC/DC regulator with internal high side and synchronous power switches that draws only 12μA typical DC supply current while maintaining a regulated output voltage at no load. The LTC3639 can supply up to 100mA load current and features a programmable peak current limit that ...

Circuit 

 

LTC3639 12V/100mA Automotive Supply

Apr 15th 2013
The LTC®3639 is a high efficiency step-down DC/DC regulator with internal high side and synchronous power switches that draws only 12μA typical DC supply current while maintaining a regulated output voltage at no load. The LTC3639 can supply up to 100mA load current and features a programmable peak current limit that ...

Circuit 

 

LTC3639 4V to 150V Input to 1.2V/50mA Output Regulator with Low Output Voltage Ripple

Apr 15th 2013
The LTC®3639 is a high efficiency step-down DC/DC regulator with internal high side and synchronous power switches that draws only 12μA typical DC supply current while maintaining a regulated output voltage at no load. The LTC3639 can supply up to 100mA load current and features a programmable peak current limit that ...

Circuit