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LTC3372HUK is a highly flexible multioutput power supply IC. The device includes a high-performance, high voltage (HV) step-down DC/DC switching regulator controller that drives an all N-channel synchronous power FET stage from a 4.5V to 60V input.

Feature

HV Buck Controller: VIN = 4.5V to 60V, VOUT = 5V/3.3V

LV Buck Regulators: VINA-H = 2.25V to 5.5V, VOUT1-4 ≥ 0.8V

8×1A LV Buck Integrated Power Stages, Configurable as 2, 3 or 4 Output Channels

8 Unique Output Configurations (1A to 4A Per Channel)

Low Total No-Load Input Supply Current (IQ)

15µA HV Controller Only (5VOUT)

23μA HV Controller Only (3.3VOUT)

33μA HV Controller (3.3VOUT) Plus One LV Regulator

9μA Per Additional LV Regulator Channel

1MHz to 3MHz Operation (HV Runs at 1/6 Frequency)

Programmable or Synchronizable to External Clock

Programmable Watchdog and Power-On Reset Delay

IC Die Temperature Monitor Output

Thermally Enhanced 48-Pin 7mm × 7mm QFN Package

Applications

Automotive and Industrial Always-On Systems

General Purpose Multi-Channel Power Supplies

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