SMD Type
Integrate Circuit
1.2 A, Step-Up/Down/Inverting Switching Regulators
MC34063
Features
Low Standby Current
Current Limiting
Output Switch Current to 1.2 A
Output Voltage Adjustable
Frequency Operation to 100 kHz
Precision 2% Reference
Absolute Maximum Ratings Ta = 25
Parameter
Power Supply Voltage
Comparator Input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage (V
Pin 1
= 40 V)
Switch Collector to Emitter Voltage
Driver Collector Voltage
Driver Collector Current *
Switch Current
Power Dissipation and Thermal Characteristics
T
A
= 25
Thermal Resistance
Operating Junction Temperature
Operating Ambient Temperature Range
Storage Temperature Range
P
D
R
èJA
T
J
T
A
T
stg
625
160
150
0 to +70
-65 to +150
mW
/W
Symbol
V
CC
V
IR
V
C(switch)
V
E(switch)
V
CE(switch)
V
C(driver)
I
C(driver)
I
SW
Rating
40
-0.3 to +40
40
40
40
40
100
1.2
Unit
V
V
V
V
V
V
mA
A
* Maximum package power dissipation limits must be observed.
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