APL1581-15KA Anpec Electronics Corporation, APL1581-15KA Datasheet - Page 8

• Manufacturer Part Number: APL1581-15KA
• Description: Dual Input Low Dropout Regulator
• Manufacturer: Anpec Electronics Corporation

APL1581
Typical Application Circuit
(1) Adjustable Output Voltage Device
(2) Fixed Output Voltage Device
(3) With Enable Control Application
Copyright
Rev. B.6 - Feb., 2009
* V
* R1 is typically in range of 100
where V
OUT
Enable
= V
ANPEC Electronics Corp.
V
I
+3.3V
GND
ADJ
+5V
REF
REF
V
CNTL
=50 A (typical)
IN
( 1+ R2 / R1 ) + I
=1.25V (typical)
V
+3.3V
GND
+5V
V
V
+3.3V
GND
CNTL
+5V
V
CNTL
IN
IN
10k
10k
Q1 : APM2301A
Q2 : APM2300A
Q1
Q2
ADJ
C
10 F
C
10 F
CNTL
CNTL
x R2
to 125
C
10 F
100 F
CNTL
100 F
C
to satisfy the minimum load current requirement.
C
IN
VCNTL
VIN
IN
VCNTL
VIN
100 F
APL1581
APL1581-25
C
(Adj.)
ADJ
IN
GND
VCNTL
VIN
VSENSE
VSENSE
8
VOUT
VOUT
APL1581
(Adj.)
ADJ
VSENSE
V
REF
VOUT
120
120
R1
R2
V
REF
120
120
R1
R2
470 F
C
470 F
C
OUT
OUT
+2.5V/5A
+2.5V/5A
GND
V
V
GND
OUT
OUT
470 F
C
OUT
+2.5V/5A
www.anpec.com.tw
GND
V
OUT