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| KGM34063AS Datasheet, PDF (1/13 Pages) Estek Electronics Co. Ltd – DC-TO-DC CONVERTER CONTROL CIRCUITS | |||
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DC-TO-DC CONVERTER CONTROL CIRCUITS
KGM34063AS
The KGM34063AS 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 Unit
40
Vdc
-0.3 to Vdc
+40
40
Vdc
40
Vdc
40
Vdc
40
Vdc
100
mA
1.5
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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