APL5901 Datasheet, PDF (1/21 Pages) Anpec Electronics Coropration – Low IQ, Low Dropout 900mA Fixed Voltage Regulator

APL5901/2
Low I_Q, Low Dropout 900mA Fixed Voltage Regulator
Features
• Low Noise : 50µV_RMS (100Hz to 100kHz)
• Low Quiescent Current : 50µA (No load)
• Low Dropout Voltage : 210mV (@900mA)
• Very low Shutdown Current : < 1µA
• Fixed Output Voltage : 1.3V ~ 3.4V
• Stable with 4.7µF Output Capacitor
• Stable with Aluminum , Tantalum or Ceramic
Capacitors .
• Reverse Current Protection
• No Protection Diodes Needed
• Built in Thermal Protection
• Built in Current Limit Protection
• Controlled Short Circuit Current : 200mA
• Fast Transient Response
• Short Setting Time
• SOT-89, SOT-89-5, SOT-223, SO-8 ,TO-252
and TO-252-5 Packages
• Lead Free Available (RoHS Compliant)
Design with an internal P-channel MOSFET pass
transistor, the APL5901/2 maintains a low supply
current, independent of the load current and dropout
voltage. Other features include reverse current
protection, thermal-shutdown protection, current limit
protection to ensure specified output current and con-
trolled short-circuit current. The APL5901/2 regulator
come in a miniature SOT-89, SOT-89-5, SOT-223, SO-
8, TO-252 and TO-252-5 packages.
Pin Configuration
TAB is GND
APL5901
BP GND _SHDN
1
2
3
5
4
1
2
3
V IN G N D V O U T
VOUT GND VIN
SOT-89 (Top View)
SOT-89-5 (Top View)
Applications
• Notebook Computer
• PDA or Portable Equipments
• Noise-Sensitive Instrumentation Systems
General Description
IN
1
GND
2
GND
3
SHDN
4
8
OUT
7
GND
6
GND
5
BYP
SO-8 (Top View)
TAB is GND
1
2
3
VIN GND VOUT
SOT-223 (Top View)
The APL5901/2 is micropower, low noise, low dropout
linear regulator. Operate from 2.7V to 6V input voltage
and deliver up to 900mA. Typical output noise is just
50µV_RMS with the addition of an external 0.1µF bypass
capacitor in BP pin and typical dropout voltage is only
210mV at 900mA loading. Designed for use in bat-
tery-powered system, the low 50µA quiescent cur-
rent makes it an ideal choice.
TAB is GND
1 23
VIN
VOUT
TO-252 (Top View)
VOUT
BP
GND
SHDN
VIN
TO-252-5 (Top View)
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. B.2 - May., 2005
www.anpec.com.tw