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ML63 PDF预览

ML63

更新时间: 2024-11-04 10:54:23
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描述
DC-DC Converter

ML63 数据手册

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ML63  
ML63 Series DC-DC Converter  
v Application  
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  
u Power Source of Portable Products  
u Palmtops  
u Portable Cameras and Video Recorders  
u Wireless mouse and keyboard  
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  
Lx  
V
LX  
limiter  
The ML63 is a group of VFM Step-up DC/DC  
converter IC with ultra-low supply current by  
CMOS process.  
Vref  
LxSW  
OUT  
Buffer  
VFM control  
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.  
Vss  
OSC  
100KHz/180KHz  
Error Amp.  
v Absolute Maximum Ratings  
Parameter  
Input Voltage  
Output Current  
Output Voltage  
Symbol  
VIN  
Ratings  
Units  
V
mA  
V
8
500  
IOUT  
VOUT  
VSS-0.3 ~VIN+0.3  
Continuous  
SOT-89  
500  
Pd  
mW  
Total Power  
Dissipation  
TO-92  
300  
Operating Ambient  
Temperature  
Storage Temperature  
Topr  
Tstg  
-30 ~ +80  
oC  
oC  
-40 ~ +125  
1/5  

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