AP7311
150mA, Low Quiescent Current, Fast Transient
Low Dropout Linear Regulator
Description
Features
The AP7311 is a 150mA, adjustable and fixed output voltage, low
150mA Low Dropout Regulator with EN
dropout linear regulator. The device included pass element, error
Very low I over full load: 65A
Q
amplifier, band-gap, current limit and thermal shutdown circuitry.
Wide input voltage range: 2V to 6V
The device is turned on when EN pin is set to logic high level.
Wide adjustable output: 0.8V to 5.0V
Fixed output options: 1.0V to 3.3V The characteristics of low dropout voltage and low quiescent
current make it suitable for low power applications, for example,
PSRR: 65dB at 100Hz
battery powered devices. The typical quiescent current is
Fast start-up time: 80s
approximately 65 A.
Stable with low ESR, 1F ceramic output capacitor
Excellent Load/Line Transient Response
Built-in current-limit and thermal-shutdown functions prevent IC
from damage in fault conditions.
Low dropout: 150mV typical at 150mA
Current limit protection
The AP7311 is available in SOT25 package.
Short circuit protection
Thermal shutdown protection
Ambient temperature range: -40C to 85C
SOT25: Available in Green Molding Compound
(No Br, Sb)
Lead Free Finish/RoHS Compliant (Note 1)
Applications
Notebook and Desktop Computers and Pheripherals
Portable Devices
Battery Powered Devices
CD-ROM, DVD and LAN Cards
Typical Application Circuit
V
V V V
IN IN
OUT OUT
IN
IN OUT OUT
AP7311 AP7311
R1
1uF 1uF
1uF
1uF
Enable
Enable
EN ADJ
EN
GND
GND
R2
Adjustable Output
Fixed Output
R
1
V = V 1 +
OUT REF
R
2
AP7311 Rev. 2 1 of 13 NOVEMBER 2009
www.diodes.com Diodes Incorporated
AP7311
150mA, Low Quiescent Current, Fast Transient
Low Dropout Linear Regulator
Ordering Information
AP7311 - XX XX G - 7
Output
Packing
Package Green
Blank : ADJ W : SOT25 G : Green 7 : Tape & Reel
10 : 1.0V
12 : 1.2V
15 : 1.5V
18 : 1.8V
20 : 2.0V
25 : 2.5V
28 : 2.8V
30 : 3.0V
33 : 3.3V
Packaging 7 Tape and Reel
Device Package Code
(Note 2) Quantity Part Number Suffix
AP7311-XXWG-7 W SOT25 3000/Tape & Reel -7
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at