Low

LT3757IDD#PBF - 

DC/DC Controller, 2.9V to 40V, 1 Output, Boost, Flyback, Inverting, SEPIC, 1MHz, DFN-10

LT3757IDD#PBF - DC/DC Controller, 2.9V to 40V, 1 Output, Boost, Flyback, Inverting, SEPIC, 1MHz, DFN-10

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
LT3757IDD#PBF
Order Code:
2294955
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LT3757IDD#PBF is a current-mode DC/DC Controller which is capable of generating either positive or negative output voltages. It can be configured as either a boost, flyback, SEPIC or inverting converter. It drives a low side external N-channel power MOSFET from an internal regulated 7.2V supply. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages. The operating frequency of the controller 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 low minimum operating supply voltage of 2.9V and a low shutdown quiescent current of less than 1µA, makes the controller ideal. It features soft-start and frequency fold back functions to limit inductor current during start-up and output short-circuit.
  • Positive or negative output voltage programming with a single feedback pin
  • Current mode control provides excellent transient response
  • Synchronizable to an external clock
  • <1µA Low shutdown current
  • Internal 7.2V Low dropout voltage regulator
  • Programmable input undervoltage lockout with hysteresis
  • Programmable soft-start

Applications

Automotive, Industrial, Communications & Networking, Power Management

Product Information

:
2.9V
:
40V
:
1 Output
:
-
:
DFN
:
10Pins
:
1MHz
:
Boost, Flyback, Inverting, SEPIC
:
-40°C
:
125°C
:
Cut Tape
:
-
:
-
:
Yes
:
MSL 1 - Unlimited
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