0.8A Step Down / Step Up / Inverting DC-DC Converter
BLOCK DIAGRAM
Drive
Collector
MC34063C
8
s
Q
Q2
Q1
R
1
Switch
Collector
Ipk Sense
7
2
Ipk Oscillator
Switch
Emitter
3
Timing
Capacitor
Vcc
6
Comparator
+
-
Comparator
lnverting
input
1.25V
Reference
Regulator
4
GND
5
ABSOLUTE MAXIMUM RATINGS (NOTE 1)
SYMBOL
V
cc
V
ir
V
SWC
V
SWE
V
CE
V
dc
I
dc
I
sw
PD
P
ΘJA
PD
P
ΘJA
T
J
T
stg
Power Supply Voltage
Comparator input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage (VSWC=40V)
Switch Collector to Emitter Voltage
Driver Collector Voltage
Driver Collector Current (NOTE 2)
Switch Current
SOP Package
Power Dissipation at T
amb
=25℃
Thermal Resistance
Power Dissipation at T
amb
=25℃
Thermal Resistance
PARAMETER
VALUE
40
-0.3 to 40
40
40
40
40
100
0.8
1.25
100
0.625
160
-40 to 150
-65 to +150
UNIT
V
V
V
V
V
V
㎃
A
W
℃/W
W
℃/W
℃
℃
DIP Package
Operating Juntion Temperature Range
Storage Temperature Range
Absolute Maximum Rating are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
HTC
−
2
−
HTC [ HTC KOREA TAEJIN TECHNOLOGY CO. ]
