DC-DC Converter Control Circuits
MC34063A
TYPICAL ELECTRICAL CHARACTERISTICS (Continued)
Reference Voltage vs Temperature
Bias Current vs Temperature
Vref
(V)
IBias
(㎁)
1.265
10
8
VCC=5V
VCC=5V
1.260
CII to GND
1.255
1.250
6
4
2
0
1.245
1.240
-40
40
80
TJ(℃)
-40
0
120
40
80
TJ(℃)
0
120
Supply Current vs Temperature
Supply Current vs Input Voltage
ICC
(㎃)
ICC
(㎃)
4.0
5
TJ= 25℃
CT= 1㎋
3.5
VCC=5V
4
CT=1㎋
3.0
2.5
3
2
2.0
1.5
1
0
0
-40
20
30
40 Vin(V)
40
80
TJ(℃)
10
0
120
May. 2009 - Rev. 1.2
HTC
− 5 −