Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

The LTC7819RUJ is a high performance, triple output, step-down synchronous DC/DC switching regulator controller that drives all N-channel power MOSFET stages. The constant-frequency current-mode architecture allows phase-locked switching frequencies up to 3MHz. the LTC7819RUJ operates over a wide input supply range of 4.5V to 40V. Power loss and supply noise are minimized by operating the three control output stages in heterodyne.

Features

Three step-down synchronous controllers

Wide input voltage range: 4.5V to 40V

Wide output voltage range: 0.8V to 99% - VIN

Low operating IQ: 14 μA (14 V to 3.3 V, channel 1 on)

Spread spectrum operation

RSENSE or DCR current sense

Integrated bootstrap power charge pump (Channel 1)

PassThru™/100% duty cycle capability (channel 1), 99% duty cycle (channels 2 and 3)

Programmable fixed frequency (100 kHz to 3 MHz)

Phase-lockable frequency (100 kHz to 3 MHz)

Selectable continuous, pulse-skipping, or low-ripple Burst Mode® operation at light loads

Low shutdown IQ: 1.5 µA

Small 40-pin 6 mm × 6 mm QFN package

AEC-Q100 certified for automotive applications

Applications

Automotive and transportation

Industrial

Military/Avionics

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