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

LINEAR TECHNOLOGY LT3757IDD#PBF
Manufacturer Part No:
LT3757IDD#PBF
Order Code:
2294955
Technical Datasheet:
See all Technical Docs

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

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

Product Information

Supply Voltage Min:
2.9V
Supply Voltage Max:
40V
No. of Outputs:
1 Output
Duty Cycle (%):
-
Controller IC Case Style:
DFN
No. of Pins:
10Pins
Switching Frequency:
1MHz
Topology:
Boost, Flyback, Inverting, SEPIC
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Automotive
  • Industrial
  • Communications & Networking
  • Power Management

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.00023

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