HI-SINCERITY

MICROELECTRONICS CORP.

Spec. No. : IC200407

Issued Date : 2003.04.01

Revised Date : 2005.03.25

Page No. : 5/7

H34063AP, H34063AS

HSMC Product Specification

Fig.5 Step-Down Converter With External PNP Saturation Switch

Fig.6 Voltage Inverting Converter

Fig.7 Voltage Inverting Converter With External PNP Saturation Switch

1

8

2

3

4

5

6

7

H34063A

R2

R1

Q1

L1

D1

RSC

C1

RA

RB

1

8

2

3

4

5

6

7

-12V / 100mA

470uF

L1

100uH

H1N5819

680pF

H34063A

RSC

0.25

C1

100uF

RB

8.2k

Ω

RA

953

Ω

4.5V-6V

Line Regulation: 20mV (Vin=4.5V~6V, @Io=100mA)

Load Regulation: 100mV (Vin=5V, @Io=10mA~100mA)

D1

1

8

2

3

4

5

6

7

D1

L1

R1

R2

H34063A

RSC

RA

RB

C1

Q1