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LT3976IMSE#PBF

DC-DC Switching Buck (Step Down) Regulator, Adjustable, 4.3V-40Vin, 1.2V-39.2Vout, 5Aout, MSOP-16

LT3976IMSE#PBF - DC-DC Switching Buck (Step Down) Regulator, Adjustable, 4.3V-40Vin, 1.2V-39.2Vout, 5Aout, MSOP-16

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Manufacturer Part No:
LT3976IMSE#PBF
Order Code:
2215133
Technical Datasheet:
LT3976IMSE#PBF   Datasheet
See all Technical Docs

Product Overview

The LT3976IMSE#PBF is an adjustable frequency monolithic buck Switching Regulator accepts a wide input voltage range up to 40V. Low quiescent current design consumes only 3.3µA of supply current while regulating with no load. Low ripple Burst Mode® operation maintains high efficiency at low output current while keeping the output ripple below 15mV in a typical application. The LT3976 can supply up to 5A of load current and has current limit foldback to limit power dissipation during short-circuit. A low dropout voltage of 500mV is maintained when the input voltage drops below the programmed output voltage, such as during automotive cold crank. An internally compensated current mode topology is used for fast transient response and good loop stability. A high efficiency 75mR switch is included on the die along with a boost Schottky diode. An accurate 1.02V threshold enable pin can be driven directly from a microcontroller or used as a programmable undervoltage lockout.
  • Excellent start-up and dropout performance
  • Accurate programmable undervoltage lockout
  • Power good flag
  • Soft-start capability
  • Thermal shutdown protection
  • Current limit foldback with soft-start override
  • Synchronizable between 250kHz to 2MHz
  • 700nA Low shutdown current

Applications

Automotive, Portable Devices, Industrial

Product Information

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:
Buck (Step Down)

:
4.3V

:
40V

:
1Outputs

:
MSOP

:
16Pins

:
5A

:
1.2V

:
39.2V

:
2MHz

:
125°C

:
-

:
-

:
MSL 1 - Unlimited
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Technical Docs (3)

No Longer Stocked

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