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34063AP1 Datasheet PDF - ETC

Part Number 34063AP1
Description DC-TO-DC CONVERTER CONTROL CIRCUITS
Manufacturers ETC 
Logo ETC Logo 

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34063A
DC-TO-DC CONVERTER CONTROL CIRCUITS
The 34063A is a monolithic control circuit containing the primary functions required for DC-to-DC converters.
These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle
oscillator with an active current limit circuit, driver and high current output switch. This series was specifically
designed to be incorporated in Step-Down and Step-Up and Voltage-Inverting applications with a minimum number
of external components.
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Operation from 3.0 V to 40 V Input
Low Standby Current
Current Limiting
Output Switch Current to 1.5 A
Output Voltage Adjustable
Frequency Operation to 100 kHz
Precision 2% Reference
MAXIMUM RATINGS
Rating
Power Supply Voltage
Comparator Input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage (Vpin 1 = 40 V)
Switch Collector to Emitter Voltage
Driver Collector Voltage
Driver Collector Current (Note 1)
Switch Current
Power Dissipation and Thermal Characteristics
Ceramic Package, U Suffix TA = +25°C
Thermal Resistance
Plastic Package, P Suffix TA = +25°C
Thermal Resistance
SOIC Package, D Suffix TA = +25°C
Thermal Resistance
Operating Junction Temperature
Operating Ambient Temperature Range
Storage Temperature Range
Symbol
VCC
VIR
VC(switch)
VE(switch)
VCE(switch)
IC(driver)
IC(driver)
ISW
PD
RθJA
PD
RθJA
PD
RθJA
TJ
TA
Tstg
Value
40
-0.3 to
+40
40
40
40
40
100
1.5
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mA
A
1.25 W
100 °C/W
1.25 W
100 °C/W
625 mW
160 °C/W
+150
°C
0 to +70 °C
-65to+150 °C



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34063AP1 datasheet


1. - DC to DC Converter

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