P1888 Datasheet PWM CONTROL 3A STEP-DOWN CONVERTER

Manufacturer: Unisonic Technologies

P1888 pwm control 3a step-down converter by Unisonic Technologies - Datasheet Preview

Datasheet Details

Part number	P1888
Manufacturer	Unisonic Technologies
File Size	192.99 KB
Description	PWM CONTROL 3A STEP-DOWN CONVERTER
Datasheet	P1888 Datasheet

General Description

UTC P1888 consists of 3A step-down switching regulator control which includes a reference voltage source, oscillation circuit, error amplifier, internal PMOS and etc with PWM.

UTC P1888 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 P1888 Preliminary PWM CONTROL 3A STEP-DOWN CONVERTER CMOS IC.

Key Features

S.
Soft-start, Current Limit, Enable function.
Thermal Shutdown function.
Built-in internal SW P-channel MOS.
Input voltage: 4V~23V.
Output voltage: 1.23V~VCC.
Duty ratio: 0% to 100% PWM control.
Oscillation frequency: 300KHz typ.

More Datasheets from Unisonic Technologies

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P1885	PWM CONTROL 2A STEP-DOWN CONVERTER
P1886	PWM CONTROL 3A STEP-DOWN CONVERTER