APL5525 Datasheet, PDF (1/14 Pages) Anpec Electronics Coropration – DUAL CHANNEL 500mA REGULATOR - RESET IC

APL5525/5526
Dual Channel 500mA Regulator + Reset IC
Features
General Description
• Low Quiescent Current : 130µA (No load)
• Low Dropout Voltage :
VDROP1=550mV@500mA
VDROP2=630mV@500mA
• Fixed Output Voltage :
VOUT1=3.3V/500mA
VOUT2=2.5V/500mA
• 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
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. VOUT1 typical dropout voltage is 550mV at
500mA loading and VOUT2 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
Cd
1
8
RESET
2
7
V DET
V IN
3
6
4
5
CONT
Cd
1
8
G ND RESET
2
7
V O UT2
V O UT1
V DET
V IN
3
6
4
5
CONT
G ND
V O UT2
V O UT1
Applications
• CD-ROM drive.
SOP-8-P Top View
Cd
RESET
V DET
V IN
1
8
CONT
Cd
1
8
2
7
GND RESET
2
7
3
6
V O UT2
V DET
3
6
4
5
V O UT1
V IN
4
5
APL5525
APL5526
CONT
G ND
V O UT2
V O UT1
= 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.
1
Rev. A.3 - Jul., 2003
www.anpec.com.tw