APL5525/5526
Dual Channel 500mA Regulator + Reset IC
Features
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Low Quiescent Current : 130µA (No load)
Low Dropout Voltage :
V
DROP1
=550mV@500mA
V
DROP2
=630mV@500mA
•
Fixed Output Voltage :
V
OUT1
=3.3V/500mA
V
OUT2
=2.5V/500mA
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Stable with 4.7µF Output Capacitor
Stable with Aluminum, Tantalum or Ceramic
Capacitors
Reverse Current Protection
No Protection Diodes Needed
Built in Thermal Protection
Fast Transient Response
Short Setting Time
SOP-8, SOP-8-P with Thermal Pad Packages
Adjustment-free Reset Detection Voltage :
3.9V or 4.2V typ
Easy to Set Delay Time from Voltage
Detection to Reset Release
General Description
The APL5525/6 is a dual-channel regulator with reset
function (specific voltage monitoring), and internal
delay circuit, set to detect 3.9V or 4.2V. Maximum
input voltage is 6V, output1 and output2 deliver up to
500mA. V
OUT1
typical dropout voltage is 550mV at
500mA loading and V
OUT2
typical dropout voltage is
630mV at 500mA loading. Design with an internal P-
channel MOSFET pass transistor, the APL5525/6
maintains a low supply current. Other features include,
thermal-shutdown protection, current limit protection
to ensure specified output current. The APL5525/6
come in miniature SOP-8 and SOP-8-P packages.
Pin Configuration
SOP-8 Top View
C d
R E S E T
V
D E T
1
2
3
4
8
7
6
5
C O N T
G N D
V
V
O U T 2
O U T 1
C d
R E S E T
V
D E T
1
2
3
4
8
7
6
5
C O N T
G N D
V
V
O U T 2
O U T 1
V
IN
V
IN
Applications
C d
1
2
3
4
8
7
6
5
SOP-8-P Top View
C O N T
G N D
V
V
O U T 2
O U T 1
C d
R E S E T
V
D E T
1
2
3
4
8
7
6
5
C O N T
G N D
V
V
O U T 2
O U T 1
•
CD-ROM drive.
R E S E T
V
D E T
V
IN
V
IN
APL5525
APL5526
= Thermal Pad
(connected to GND plane for better heat
dissipation)
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.3 - Jul., 2003
1
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
