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LTC3807IUDC#PBF - 

DC/DC Controller, High Performance, 4V to 38V, 1 Output, Synchronous Buck, 900kHz, QFN-20

LTC3807IUDC#PBF - DC/DC Controller, High Performance, 4V to 38V, 1 Output, Synchronous Buck, 900kHz, QFN-20

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Manufacturer Part No:
LTC3807IUDC#PBF
Newark Part No.:
84X9119
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LTC3807IUDC#PBF is a high-performance step-down switching regulator DC/DC Controller that drives an all N-channel synchronous power MOSFET stage. The constant frequency current-mode architecture allows a phase-lockable frequency of up to 750kHz. The 50μA no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3807 features a precision 0.8V reference and power good output indicator. A wide 4 to 38V input supply range encompasses a wide range of intermediate bus voltages and battery chemistries. The output voltage of the LTC3807 can be programmed between 0.8V to 24V. The TRACK/SS pin ramps the output voltages during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. The PLLIN/MODE pin selects among burst mode operation, pulse-skipping mode, or continuous conduction mode at light loads.
  • 50μA Low operating
  • Selectable continuous, pulse-skipping or low ripple burst mode operation at light load
  • Selectable current limit
  • 99% Duty cycle very low dropout operation
  • Adjustable output voltage soft-start or tracking
  • Power good output voltage monitor
  • Output overvoltage protection
  • 14μA Low shutdown
  • Internal LDO powers gate drive from VIN or EXTVCC
  • No current fold back during start-up

Applications

Automotive, Power Management

Product Information

:
4V
:
38V
:
1 Output
:
99%
:
QFN
:
20Pins
:
900kHz
:
Synchronous Buck (Step Down)
:
-40°C
:
125°C
:
Cut Tape
:
-
:
-
:
Yes
:
MSL 1 - Unlimited
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