ML63271PL datasheet(1/5 Pages) MINILOGIC

部品番号	ML63271PL

部品情報	DC-DC Converter

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メーカー	MINILOGIC [Minilogic Device Corporation Limited]

ホームページ	http://www.minilogic.com.hk

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ML63

ML63 Series DC-DC Converter

v Application

u Power Source of Portable Products

u Palmtops

u Portable Cameras and Video Recorders

u Wireless mouse and keyboard

v Features

l Smallnumberofexternalcomponents:inductor,diodeand

capacitor.

l Ultralowinputcurrent:Typical0.6uA(atnoload,1.5V

input)

l Oscillator:100kHz,180kHz(+15%)

l Lowrippleandnoise

l Lowstartupvoltage:Max0.9V(with1mA input)

l HighEfficiency: Typical80%

l PackageAvailable:

SOT- 89 (500mW) & TO - 92 (300mW)

v Absolute Maximum Ratings

Parameter

Symbol

Ratings

Units

Input Voltage

VIN

8

V

Output Current

IOUT

500

mA

Output Voltage

VOUT

VSS-0.3 ~VIN+0.3

V

SOT-89

500

Continuous

Total Power

Dissipation

TO-92

Pd

300

mW

Operating Ambient

Temperature

Topr

-30 ~ +80

oC

Storage Temperature

Tstg

-40 ~ +125

oC

v General Description

The ML63 is a group of VFM Step-up DC/DC

converter IC with ultra-low supply current by

CMOS process.

It consists of an oscillator, a VFM control circuit, a

Lx switch driver transistor, a reference voltage unit,

an error amplifier for voltage detection and an Lx

switch protection circuit. It is suitable for use with

battery-powered instruments with low noise and

ultra low supply current.

v Block Diagram

VLX

limiter

Buffer

OSC

100KHz/180KHz

Vref

VFM

control

OUT

Error Amp

.

Lx

Vss

LxSW

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