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H34063AS Datasheet, PDF (4/6 Pages) Hi-Sincerity Mocroelectronics – DC-TO-DC Converter Integrate Circuit Devices 
HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : HS200202
Issued Date : 2000.02.01
Revised Date : 2002.04.22
Page No. : 4/6
Application Information (Continuos)
Fig.2 Step-Up Converter
RSC
0.22
Vin
R1
150Ω
C1
100µF
RA
2.2kΩ
L1
200µH
H34063AS
8
1
7
2
6
3
5
4
RB
47kΩ
D1
H1N5819
CT
680ρF
Vout
28V / 200mA
Cout
220µF
Line Regulation : 100mV (Vin=8V~16V, @Io=200mA)
Load Regulation : 5mV (Vin=12V, @Io=80mA~200mA)
Fig.3 Step-Up Converter With External NPN Switch
L1
R1
RSC
Vin
C1
RA
H34063AS
8
1
7
2
6
3
5
4
RB
CT R2
D1
Q1
Vout
Cout
Fig.4 Step-Down Converter
H34063AS
L1
200µH
Vout
5V / 500mA
8
1
RSC
Cout
0.25
7
2
D1
470µF
Vin
6
3
H1N5819
CT
C1
5
4
470ρF
100µF
RB
RA 3.6kΩ
1.2kΩ
Line Regulation : 40mV (Vin=10V~20V, @Io=500mA)
Load Regulation : 5mV (Vin=15V, @Io=10mA~500mA)
Short Circuit Current : 1.3A (Vin=15V, @RL=0.1Ω
H34063AS
HSMC Product Specification