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SC4603 Datasheet High Efficiency Synchronous Buck

Manufacturer: SEMTECH

Overview: Very Low Input, MHz Operation, High Efficiency Synchronous Buck POWER.

General Description

The SC4603 is a voltage mode step down (buck) regulator controller that provides accurate high efficiency power conversion from input supply range 2.25V to 5.5V.

A high level of integration reduces external ponent count and makes it suitable for low voltage applications where cost, size and efficiency are critical.

The SC4603 drives external plementary power MOSFETs;

Key Features

  • ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ BICMOS voltage mode PWM controller 2.25V to 5.5V Input voltage range Output voltages as low as 0.5V Sleep mode (Icc = 10µA typ) Lossless adjustable overcurrent protection Combination pulse by pulse & hiccup mode current limit High efficiency synchronous switching 0% to 100% Duty cycle range Synchronization to external clock Asynchronous start-up 1MHz frequency of operation 10-Pin MSOP surface mount package.

More Datasheets from SEMTECH

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SC4607 High Efficiency Synchronous Buck
SC4608 High Efficiency Synchronous Buck
SC4609 High Efficiency Synchronous Buck
SC4611 Wide Input Range High Performance Synchronous Buck Switching Regulator
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SC4603 Distributor