APL5320
Ultra-Low-Noise, High PSRR, Low-Dropout, 300mA Linear Regulator
General Description
Features
The APL5320 is a P-channel low dropout linear regulator
which needs only one input voltage from 2.5 to 6V, and
delivers current up to 300mA to set output voltage. It also
can work with low ESR ceramic capacitors and is ideal for
using in the battery-powered applications such as note-
book computers and cellular phones. Typical dropout volt-
age is only 290mV at 300mA loading.
·
·
·
Wide Operating Voltage: 2.5~6V
Low Dropout Voltage: 290mV @ 3V/300mA
Fixed Output Voltages: 1.2~3.7V with Step 100mV,
and 2.85V, 4.75V
·
·
·
·
·
·
·
·
Guaranteed 300mA Output Current
High PSRR: 70dB
Current-Limit Protection
The APL5320 provides several versions of fixed output
voltages ranging from 1.2 to 3.7V with step 100mV and
2.85V, 4.75V. Current-limit with current foldback and ther-
mal shutdown functions protects the device against cur-
rent over-loads and over-temperature. The APL5320 is
available in SOT-23-5, TSOT-23-5, SOT-23-3, SC-70-5,
VTDFN1.2x1.6-4, and TDFN 1.6x1.6-6 packages.
Controlled Short-Circuit Current: 50mA
Over-Temperature Protection
Stable with 1mF Capacitor for Any Load
Excellent Load/Line Transient
SOT-23-5, TSOT-23-5, SOT-23-3, SC-70-5,
VTDFN1.2x1.6-4, and TDFN1.6x1.6-6 Packages
Lead Free and Green Devices Available
(RoHS Compliant)
·
Pin Configuration
VIN 1
GND 2
5 VOUT
4 NC
Applications
SHDN 3
·
·
·
·
·
·
Cellular Phones
SOT23-5/TSOT-23-5/SC-70-5
(Top View)
Portable and Battery-Powered Equipments
Laptops, Palmtops, Notebook Computers
Wireless LANs
GND 1
3 VIN
Portable Information Appliances
GPSes
VOUT 2
SOT-23-3
(Top View)
Simplified Application Circuit
1
2
3
6
5
4
SHDN
NC
VIN
GND
NC
VOUT
4
3
VIN
1
2
VOUT
GND
VIN
VOUT
VIN VOUT
SHDN
SHDN
GND
VTDFN1.2x1.6-4
(Top View)
TDFN1.6x1.6-6
(Top View)
Enable
= Exposed Pad (connected to ground
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 ã ANPEC Electronics Corp.
1
www.anpec.com.tw
Rev. A.9 - Mar., 2012