H34063A Datasheet, PDF (4/7 Pages) Hi-Sincerity Mocroelectronics – DC-TO-DC CONVERTER INTEGRATE CIRCUIT DEVICES

HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : IC200407
Issued Date : 2003.04.01
Revised Date : 2005.03.25
Page No. : 4/7
Application Information (Continuos)
Fig.2 Step-Up Converter
RSC
0.22
Vin
R1
150Ω
C1
100uF
RA
2.2kΩ
L1
200uH
H34063A
8
1
7
2
6
3
5
4
RB
47kΩ
D1
H1N5819
CT
680pF
Vout
28V / 200mA
Cout
220uF
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
H34063A
8
1
7
2
6
3
5
4
RB
D1
Q1
CT ^R2
Vout
Cout
Fig.4 Step-Down Converter
RSC
0.25
Vin
H34063A
8
1
7
2
6
3
5
4
L1
200uH
CT
470pF
D1
H1N5819
Vout
5V / 500mA
Cout
470uF
C1
100uF
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
H34063AP, H34063AS
HSMC Product Specification