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LT3957AEUHE#PBF

DC-DC Switching Boost, Inverting, SEPIC Regulator, Adjustable, 3V-40V in, 600mA out, 1.2MHz, QFN-36

LT3957AEUHE#PBF - DC-DC Switching Boost, Inverting, SEPIC Regulator, Adjustable, 3V-40V in, 600mA out, 1.2MHz, QFN-36

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Manufacturer Part No:
LT3957AEUHE#PBF
Order Code:
2097983
Technical Datasheet:
LT3957AEUHE#PBF   Datasheet
See all Technical Docs

Product Overview

The LT3957AEUHE#PBF is a current-mode DC-to-DC Converter which is capable of generating either positive or negative output voltage. It can be configured as either a boost, flyback, SEPIC or inverting converter. It features an internal low side N-channel power MOSFET rated for 40V at 5A and driven from an internal regulated 5.2V supply. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages. The operating frequency of LT3957A can be set with an external resistor over a 100kHz to 1MHz range and can be synchronized to an external clock using the SYNC pin. A minimum operating supply voltage of 3V and a low shutdown quiescent current of less than 1µA, make the LT3957A ideally suited for battery-powered systems. The LT3957A features soft-start and frequency foldback functions to limit inductor current during start-up. The LT3957A has improved load transient performance compared to the LT3957.
  • Single feedback pin for positive or negative output voltage
  • Current-mode control provides excellent transient response
  • Synchronizable to an external clock
  • Programmable input undervoltage lockout with hysteresis
  • Programmable soft-start
  • Internal 5.2V low dropout voltage regulator

Applications

Automotive, Communications & Networking, Industrial, Power Management

Product Information

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:
Boost, Flyback, Inverting, SEPIC

:
3V

:
40V

:
1Outputs

:
QFN

:
36Pins

:
600mA

:
-

:
40V

:
1.2MHz

:
125°C

:
-

:
-

:
MSL 1 - Unlimited
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Technical Docs (2)

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