APL5522 Datasheet, PDF (1/12 Pages) Anpec Electronics Coropration – Dual-Channel, 3.3V/500mA and 2.5V/500mA Linear Regulator

APL5522
Dual-Channel, 3.3V/500mA and 2.5V/500mA Linear Regulator
Features
General Description
• Fixed Output Voltage :
V_OUT1=3.3V/500mA (within Maximum Power
Dissipation)
V_OUT2=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 V_OUT2 )
• 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. V_OUT1 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
V_OUT1
1
8
GND V_OUT1
1
V_IN
2
7
GND
V_IN
2
V_IN
V_OUT2
36
45
GND
V_IN
3
GND V_OUT2
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.
1
Rev. A.7 - Dec., 2008
www.anpec.com.tw