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SC1101 - Asynchronous Voltage Mode PWM Controller

Description

The SC1101 is a versatile, low-cost, voltage-mode PWM controller designed for low output voltage DC/DC power supply applications.

A simple, fixed-voltage buck regulator can be implemented using the SC1101 with a minimum of external components.

Features

  • ‹ Low cost / small size ‹ Switch mode efficiency up to 95% ‹ 1% reference voltage accuracy ‹ Over current protection ‹ 500mA output drive ‹ SO-8 package SC1101 features include a temperature compensated voltage reference, triangle wave oscillator, current limit comparator, frequency shift over-current protection, and an internally compensated error amplifier. Pulse by pulse current limiting is implemented by sensing the differential voltage across an external resistor, or an appropriately sized.

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Datasheet Details

Part number SC1101
Manufacturer SEMTECH
File Size 177.95 KB
Description Asynchronous Voltage Mode PWM Controller
Datasheet download datasheet SC1101 Datasheet

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Full PDF Text Transcription

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POWER MANAGEMENT Description The SC1101 is a versatile, low-cost, voltage-mode PWM controller designed for low output voltage DC/DC power supply applications. A simple, fixed-voltage buck regulator can be implemented using the SC1101 with a minimum of external components. Internal level shift and drive circuitry eliminates the need for an expensive p-channel, high-side switch. The small device footprint allows for compact circuit design.
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