APL5523 Datasheet, PDF (1/11 Pages) Anpec Electronics Coropration – Dual-Channel, 3.3V/500mA and 1.8V/300mA Linear Regulator

APL5523
Dual-Channel, 3.3V/500mA and 1.8V/300mA Linear Regulator
Features
General Description
• Fixed Output Voltage :
VOUT1=3.3V/500mA
VOUT2=1.8V/300mA
• Low Dropout Voltage (defined as the minimum
input/output voltage difference):
Output 1 Dropout Voltage : 0.6V (at 500mA)
Output 2 Dropout Voltage : 0.9V (at 300mA)
• Stable with 4.7uF Output Capacitor(at VOUT1)
Stable with 2.2uF Output Capacitor(at VOUT2)
• Built in Thermal Protection
• Built in Current Limit Protection
• Fast transient Response
• Short Setting Time
• SOP-8 and SOP-8-P Package Available
Applications
• Desktop Computer
• Networking Systems
• Optical Data Storage Systems
The APL5523 is a dual low dropout regulator with
output1 with 3.3V/0.5A and output2 with 1.8V/0.3A
output capability. In order to obtain lower dropout
voltage and faster transient response, which is criti-
cal for low voltage applications, the APL5223 has
been optimized. The dropout voltages are guaran-
teed at 0.6V at 0.5A for output1 and 0.9V at 0.3A for
output 2. Current limit is trimmed to ensure speci-
fied output current and controlled short-circuit current.
On-chip thermal limiting provides protection against
any combination of overload that would create ex-
cessive junction temperatures. The APL5523 regu-
lator comes in a SOP-8 and SOP-8-P package.
Pin Configuration
SOP−8 (Top View)
SOP-8-P (Top View)
V O U T1
1
V IN
2
V IN
3
V O U T2
4
8
GND
V O U T1
1
7
GND
V IN
2
6
GND
V IN
3
5
GND
V O U T2
4
8
NC
7
GND
6
NC
5
NC
= Thermal Pad
(connected to GND plane for better heat
dissipation)
Ordering and Marking Information
APL5523
APL5523 K /K A :
Lead Free Code
H andling C ode
Tem p. Range
Package Code
APL5523
XXXXX
Package Code
K : SOP-8
KA : SOP-8-P
O perating Junction Tem p. R ange
C : 0 to 150°C
H andling C ode
TU : Tube
TR : Tape & Reel
Lead Free Code
L : Lead Free D evice B lank : O riginal D evice
XXXXX - D ate C ode
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.1 - July., 2004
www.anpec.com.tw