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MC34063ABD データシート(Datasheet) 1 Page - STMicroelectronics

部品番号. MC34063ABD
部品情報  DC-DC CONVERTER CONTROL CIRCUITS
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
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MC34063A
MC34063E
DC-DC CONVERTER CONTROL CIRCUITS
®
March 2001
s
OUTPUT SWITCH CURRENT IN EXCESS OF
1.5A
s
2% REFERENCE ACCURACY
s
LOW QUIESCENT CURRENT: 2.5mA (TYP.)
s
OPERATING FROM 3V TO 40V
s
FREQUENCY OPERATION TO 100KHz
s
ACTIVE CURRENT LIMITING
DESCRIPTION
The MC34063A/E series is a monolithic control
circuit delivering the main functions for DC-DC
voltage converting.
The device contains an internal temperature
compensated reference, comparator, duty cycle
controlled oscillator with an active current limit
circuit, driver and high current output switch.
Output voltage is adjustable through two external
resistors with a 2% reference accuracy.
Employing
a
minimum
number
of
external
components the MC34063A/E devices series is
designed
for
Step-Down,
Step-Up
and
Voltage-Inverting applications.
BLOCK DIAGRAM
DIP-8
SO-8
1/15




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