Diodes AP131 - Manual

AP131
300mA LOW DROPOUT LINEAR REGULATOR WITH
SHUTDOWN
AP131 Rev. 7 1 of 7 FEBRUARY 2009
www.diodes.com © Diodes Incorporated
Lead-free
•
Input Voltage Range is from 2.7 to 5.5V
• Dropout Voltage 400mV at 300mA Output Current
• Guaranteed 300mA Output Current
•
Internal Ron = 1.5 Ω PMOS draws no Base Current
• Low Quiescent Current 50µA
• Output Voltage: 1.5V/1.8V/2.0V/2.5V/2.8V/
•
2.9V/3.0V/3.3V/ 3.5V; Accuracy 2%
•
Active Low Shutdown Function (EN pin)
• Fast Transient Response
• Good Load Regulation
•
Current Limit and Thermal Shutdown Protection
• Short Circuit Current Fold-Back
• Lead Free package: SOT25
• SOT25: Available in “Green” Molding Compound
(No Br, Sb)
• Lead Free Finish/RoHS Compliant (Note 1)
The AP131 is a 300mA, fixed output voltage, low dropout linear
regulator. The Device included pass element, error amplifier,
band-gap, current limit and thermal shutdown circuitry. The
device is ON when the EN pin is set to logic high level.
The characteristics of low dropout voltage and less quiescent
current make it good for some critical current applications, for
example, some battery powered devices. The typical quiescent
current is approximately 50µA from zero to maximum load. Due
to the internal flexible design, it results in extensively fixed output
voltage versions and makes it convenient to use for applications.
Built-in current-limit and thermal-shutdown functions prevent any
fault condition from IC damage. An external capacitor can be
connected to the BP pin and reduce the output noise.
Applications
• Battery Powered Device
• Wireless Communication
• CD-ROM, DVD, and LAN Card
• PC
Peripheral
Ordering Information
Output Voltage Package Packing
W : SOT25
Lead Free
G : Green
7 : Tape & Reel L : Lead Free
AP131 - XX W X - 7
15 :1.5V
18 :1.8V
20 :2.0V
25 :2.5V
28 :2.8V
29 :2.9V
30 :3.0V
33 :3.3V
35 :3.5V
Device
Package
Code
Packaging
(Note 2)
7” Tape and Reel
Quantity Part Number Suffix
AP131-XXWL-7 W SOT25 3000/Tape & Reel -7
AP131-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
http://www.diodes.com/products/lead_free.html.
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
Features General Description