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Cystech Electonics - DC-to-DC Converter Control Circuit

Numéro de référence MC34063AQ8
Description DC-to-DC Converter Control Circuit
Fabricant Cystech Electonics 
Logo Cystech Electonics 





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MC34063AQ8 fiche technique
CYStech Electronics Corp.
DC-to-DC Converter Control Circuit
MC34063AQ8
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Issued Date : 2003.03.21
Revised Date :2005.06.02
Page No. : 1/7
Description
The MC34063AQ8 is a monolithic control circuit containing the primary functions required for
DC-to-DC converters. This device consists of an internal temperature compensated reference,
comparator, control- led duty cycle oscillator with an active current limit circuit, driver and high current
output switch.
Features
3V to 40V Input Voltage Operation
Internal 1.6A Peak Current Switch
Internal ±1.8% Reference
Low Quiescent Current at 1.6mA
Frequency Operation from 100Hz~100KHz
Current Limiting
Applications
Saver for Cellular Phone
DC-DC Converter Module
Typical Application Circuit
Fig1.Saver Circuit for Cellular Phone
RSC
Vin
C1
100µF
MC34063A
81
72
63
54
RB
33k
RA
5.6k
L1
200µH
CT
470ρF
D1
1N5819
Vout
Cout
220µF
MC34063AQ8
CYStek Product Specification

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