P1885 Datasheet PWM CONTROL 2A STEP-DOWN CONVERTER

Manufacturer: Unisonic Technologies

P1885 pwm control 2a step-down converter by Unisonic Technologies - Datasheet Preview

Datasheet Details

Part number	P1885
Manufacturer	Unisonic Technologies
File Size	275.79 KB
Description	PWM CONTROL 2A STEP-DOWN CONVERTER
Datasheet	P1885 Datasheet

General Description

UTC P1885 consists of 2A step-down switching regulator control which includes a reference voltage source, oscillation circuit, error amplifier, internal PMOS and etc with PWM.

UTC P1885 can provide low-ripple power, high efficiency, and excellent transient characteristics and an enable function, an over current protect function and a short circuit protect function are built inside, so the operation frequency will be reduced from 300KHz to 30KHz when OCP or SCP happens.

And the PWM control circuit can vary the duty ratio linearly from 100 down to 0%.

Overview

UNISONIC TECHNOLOGIES CO., LTD P1885 LINEAR INTEGRATED CIRCUIT PWM CONTROL 2A STEP-DOWN CONVERTER.

Key Features

S.
Soft-start, Current Limit, Enable function.
Thermal Shutdown function.
Built-in internal SW P-channel MOS.
Input voltage: 3.6V to 23V.
Output voltage: 0.8V to VCC.
Duty ratio: 0% to 100% PWM control.
Oscillation frequency: 300KHz typ.

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