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Rev. A.8 - Oct., 2003
HPL5331
5
Copyright HIPAC Semiconductor, Inc.
www.hipacsemi.com
Typical Application Circuit
COUT : 470
µF, ESR=25mΩ
R1, R2 : 1k
Ω, 1%
Q1 : HPM2300 AC
VCNTL
+3 .3 V
C CNTL
47uF
VOUT
+1 .25V/0.9 V
-3 ~+3 A
C SS
0.1u F
GN D
R 1
1k
R 2
1k
VIN
+2 .5 V/1.8V
GN D
C IN
470uF
Q1
Shutdow n
C OUT
470uF
VREF
GN D
VR EF
VIN
VO U T
VC N TL
Note : Since R1 and R2 are very small, the voltage offset
caused by the bias current of VREF can be ignore.
2. VOUT=1.4V Application
VCNT L
+5V
C CNT L
47µF
VOUT
+1.4V/
-3~+3 A
C SS
0.1µF
GND
R 1
1k
R 2
1k
VIN
+2.8V
GND
C IN
470µF
C OUT
470µF
VREF
GN D
VR EF
VIN
VOU T
VCNTL
1. VOUT=1.25V/0.9V Application
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