ML63 Datasheet, PDF (1/5 Pages) Minilogic Device Corporation Limited – DC-DC Converter

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
ML63
v Features
l Small number of external components: inductor, diode and
capacitor.
l Ultra low input current : Typical 0.6uA (at no load, 1.5V
input)
l Oscillator : 100 kHz, 180 kHz ( + 15%)
l Low ripple and noise
l Low startup voltage : Max 0.9V (with 1mA input)
l High Efficiency: Typical 80%
l Package Available:
SOT- 89 (500mW) & TO - 92 (300mW)
v General Description
v Block Diagram
The ML63 is a group of VFM Step-up DC/DC
converter IC with ultra-low supply current by
CMOS process.
Lx
VLX limiter
LxSW
Buffer
Vref
OUT
It consists of an oscillator, a VFM control circuit, a
VFM control
Lx switch driver transistor, a reference voltage unit, ^Vss
OSC
Error Amp.
100KHz/180KHz
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 Absolute Maximum Ratings
Parameter
Symbol
Input Voltage
VIN
Output Current
IOUT
Output Voltage
VOUT
Continuous SOT-89
Total Power
Pd
Dissipation ^TO-92
Operating Ambient
Temperature
Topr
Storage Temperature
Tstg
Ratings
8
500
VSS-0.3 ~VIN+0.3
500
300
-30 ~ +80
-40 ~ +125
Units
V
mA
V
mW
o_C
o_C
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