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MC34063A Datasheet(Fiches technique) 1 Page - Analog Intergrations Corporation

Numéro de pièce MC34063A
Description  DC/DC CONVERTER CONTROL CIRCUIT
Télécharger  9 Pages
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Fabricant  AIC [Analog Intergrations Corporation]
Site Internet  http://www.analog.com.tw
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MC34063A
DC/DC CONVERTER CONTROL CIRCUIT
SPEC NO: DS34063A-00
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
TEL: (8863)577-2500 FAX:(8863)577-2510
1
! FEATURES
"
3V to 30V Input Voltage Operation.
"
Internal 1.6A Peak Current Switch.
"
Internal
±1.8% Reference.
"
Low Quiescent Current at 1.6mA.
"
Frequency Operation from 100Hz to 100KHz.
"
Current Limiting.
! APPLICATIONS
"
Saver for Cellular phones
"
DC-DC Converter Module
! 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.
! TYPICAL APPLICATION CIRCUIT
MC34063A
IPK
8
7
6
5
4
3
2
1
FB
VCC
DRI
SC
SE
TC
GND
VIN
L
200
µH
RB
33K
C1
D1
1N5819
CT
RA
5.6K
*RS
VOUT
8.6V SAVER
*:Io=0.3/RS
+
100
µF
CO
+
Saver Circuit for Cellular Phone
! ORDERING INFORMATION
MC34063A XX
ORDER NUMBER
MC34063ACN
(PLASTIC DIP)
PIN CONFIGURATION
MC34063ACS
(PLASTIC SO)
TOP VIEW
VCC
DRI
SE
TC
GND
IPK
FB
SC 1
3
4
2
8
6
5
7
PACKAGE TYPE
N: PLASTIC DIP
S: SMALL OUTLINE
TEMPERATURE
C: 0
°C~+70°C




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