LM34063AQ8 Datasheet, PDF (1/9 Pages) Cystech Electonics Corp. – DC-to-DC Converter Control Circuit

CYStech Electronics Corp.
DC-to-DC Converter Control Circuit
LM34063AQ8
Spec. No. : C501Q8
Issued Date : 2003.03.21
Revised Date :2011.09.06
Page No. : 1/9
Description
The LM34063AQ8 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
Ordering Information
Device
LM34063AQ8
Package
SOP-8
(Pb-free lead plating package)
Shipping
2500 pcs / tape & reel, 3000 pcs/tape & reel
Typical Application Circuit
Fig1.Saver Circuit for Cellular Phone
RSC
Vin
C1
100μF
LM34063A
8
1
7
2
6
3
5
4
RB
33kΩ
RA
5.6kΩ
L1
200μH
CT
470pF
D1
1N5819
Vout
Cout
220μF
LM34063AQ8
CYStek Product Specification