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PDF ( 数据手册 , 数据表 ) MC34063

零件编号 MC34063
描述 DC-DC CONVERTER CONTROL CIRCUITS
制造商 ST Microelectronics
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MC34063 数据手册, 描述, 功能
MC34063A
® MC34063E
DC-DC CONVERTER CONTROL CIRCUITS
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.
DIP-8
SO-8
BLOCK DIAGRAM
March 2001
1/15







MC34063 pdf, 数据表
MC34063A/E
Voltage Inverting Converter
Printed Demoboard
Test Condition (VOUT = -12V)
Test
Line Regulation
Load Regulation
Output Ripple
Efficency
ISC
Conditions
VIN = 4.5 to 6V, IO = 100 mA
VIN = 5V, IO = 10 to 100 mA
VIN = 5V, IO = 100 mA
VIN = 5V, IO = 100 mA
VIN = 5V, RlLOAD = 0.1
8/15
Symbol
Vout
GND
GND
Vin
Pin
1
2
3
4
Value (Typ.)
15
20
230
58
0.9
Unit
mV
mV
mV
%
A














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