APL1581 Ver la hoja de datos (PDF) - Anpec Electronics
Número de pieza
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Fabricante
APL1581 Datasheet PDF : 17 Pages
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APL1581
Application Circuit
(1) Adjustable Output Voltage Device
VIN
+3.3V
VCNT L
+5V
CCNTL
10uF
V IN
VOUT
APL1581
(Adj.)
VCNTL VSENSE
ADJ
R1
VREF 120
CIN
100uF
R2
120
VOUT
+2.5V/5A
COUT
470uF
GND
GND
* VOUT = VREF ( 1+ R2 / R1 ) + IADJ * R2
where VREF =1.25V (typical)
IADJ=50µA (typical)
* R1 is typically in range of 100Ω to 125Ω to satisfy the minimum load current requirement.
(2) Fixed Output Voltage Device
VIN
+3.3V
VCNT L
+5V
CCNTL
10uF
V IN
VOUT
APL1581-25
VCNTL VSENSE
GND
CIN
100uF
VOUT
+2.5V/5A
COUT
470uF
GND
(3) With Enable Control Application
VIN
+3.3V
VCNT L
+5V
Enable
GND
Q1
10k
Q2
10k
CCNTL
10uF
V IN
VOUT
APL1581
(Adj.)
VCNTL VSENSE
ADJ
R1
VREF 120
CIN
100uF
R2
120
Q1 : APM2301A
Q2 : APM2300A
Copyright © ANPEC Electronics Corp.
5
Rev. B.5 - Mar., 2008
GND
VOUT
+2.5V/5A
COUT
470uF
GND
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