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APL5522 Datasheet PDF - Anpec Electronics

Part Number APL5522
Description 3.3V/500mA and 2.5V/500mA Linear Regulator
Manufacturers Anpec Electronics 
Logo Anpec Electronics Logo 



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APL5522 datasheet, circuit
APL5522
Dual-Channel, 3.3V/500mA and 2.5V/500mA Linear Regulator
Features
General Description
Fixed Output Voltage :
VOUT1=3.3V/500mA (within Maximum Power
Dissipation)
VOUT2=2.5V/500mA (within Maximum Power
Dissipation)
Low Dropout Voltage (Defined as the Minimum
Input/Output Voltage Difference):
Output 1 Dropout Voltage : 550mV (at 500mA)
Output 2 Dropout Voltage : 630mV (at 500mA)
Stable
with
4.7µF
Output
Capacitor(at
V
OUT1
)
Stable with 4.7µF Output Capacitor(at VOUT2 )
No Protection Diodes Needed
Built-In Thermal Protection
Built-In Current-Limit Protection
Fast transient Response
Short Setting Time
SOP-8 and SOP-8P Packages Available
Lead Free and Green Devices Available
(RoHS Compliant)
Applications
Desktop Computer
Networking Systems
Optical Data Storage Systems
The APL5522 is a dual low dropout regulator with output
1 with 3.3V/0.5A and output2 with 2.5V/0.5A output
capability. In order to obtain lower dropout voltage and
faster transient response, which is critical for low voltage
applications, the APL5522 has been optimized. VOUT1 typi-
cal dropout voltage is 550mV at 500mA loading and V
OUT2
typical dropout voltage is 630mV at 500mA loading. Cur-
rent limit is trimmed to ensure specified output current
and controlled short-circuit current. On-chip thermal lim-
iting provides protection against any combination of over-
load that would create excessive junction temperatures.
The APL5522 regulator comes in a SOP-8 and SOP-8P
packages.
Pin Configuration
SOP-8 Top View
SOP-8P Top View
VOUT1
1
8
GND VOUT1
1
VIN 2 7 GND VIN 2
VIN
VOUT2
36
45
GND
VIN
GND VOUT2
3
4
8 NC
7 GND
6 NC
5 NC
= Thermal Pad
(The thermal pad of SOP-8P has to be connected
to the GND plane to get better heat dissipation
than SOP-8.)
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain
the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
Rev. A.7 - Dec., 2008
1
www.anpec.com.tw

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APL5522 equivalent
APL5522
Typical Operating Characteristics (Cont.)
Output1 Line Transient
VIN=4.5V to 5.5V
(1V/div)
CIN=1µF
COUT1=4.7µF
IOUT=10mA
VOUT1(20mV/div)
Time (100µs/div)
Output2 Line Transient
VIN=4.5V to 5.5V
(1V/div)
CIN=1µF
COUT2=4.7µF
IOUT=10mA
VOUT2(20mV/div)
Time (100µs/div)
Output1 Load Transient
VOUT(100mV/div)
Output2 Load Transient
VOUT2=(200mV/div)
IL1=1mA~500mA
COUT1=4.7µF(Aluminum)
Tr=1µs
Time (100µs/div)
Copyright © ANPEC Electronics Corp.
Rev. A.7 - Dec., 2008
5
IL2=1mA~500mA
COUT2=4.7µF(Aluminum)
Tr=1µs
Time (100µs/div)
www.anpec.com.tw

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Information Total 12 Pages
Download[ APL5522.PDF Datasheet ]

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