MC34063A 데이터 시트보기 (PDF) - Analog Intergrations
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MC34063A Datasheet PDF : 10 Pages
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MC34063A
Industrial Standard, Universal DC/DC Converter
n FEATURES
l 3V to 30V Input Voltage Operation.
l Internal 1.6A Peak Current Switch.
l Internal ±1.8% Reference.
l Low Quiescent Current at 1.6mA.
l Frequency Operation from 100Hz to 100KHz.
l Current Limiting.
n APPLICATIONS
l Saver for Cellular phones
l DC-DC Converter Module
n DESCRIPTION
The MC34063A by Analog Integrations
Corporation, an improved second source over the
industrial standard MC34063A, is a monolithic
control circuit containing the primary functions
required for DC/DC converters. The device
consists of an internal temperature compensated
reference, comparator, controlled duty cycle
oscillator with an active current limit circuit, driver
and high current output switch. This device is
specifically designed to be incorporated in step-
down, step-up and voltage-inverting applications
with a minimum number of external components.
The ±1.8% internal reference and low quiescent
current of 1.6mA are among the improvements of
the device over the competition.
n TYPICAL APPLICATION CIRCUIT
200µH
VOUT
*RS
VIN
+
C1 100µF
8
DRI
7
IPK
6
VCC
5
FB
1
SC
2
SE
3
TC
4
GND
CT
MC34063A
L
D1
+
1N5819
CO
8.6V SAVER
*:Io=0.3/RS
RB
33K
RA
5.6K
Saver Circuit for Cellular Phone
n ORDERING INFORMATION
MC34063A CX
PACKAGE TYPE
N: PLASTIC DIP
S: SMALL OUTLINE
ORDER NUMBER
PIN CONFIGURATION
MC34063ACN
(PLASTIC DIP)
MC34063ACS
(PLASTIC SO)
TOP VIEW
SC 1
SE 2
TC 3
GND 4
8 DRI
7 IPK
6 VCC
5 FB
Analog Integrations Corporation
4F, 9 Industry E. 9th Rd, Science-Based Industrial Park, Hsinchu, Taiwan
TEL: 886-3-5772500
FAX: 886-3-5772510 www.analog.com.tw
DS-34063A-01 012102
1
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