AP139_09 Datasheet, PDF (1/7 Pages) Diodes Incorporated – 300mA LOW-NOISE CMOS LDO

AP139
300mA LOW-NOISE CMOS LDO
Features
• Very Low Dropout Voltage
• Low Current Consumption: Typ. 45μA, max. 60uA
• Output Voltage: 1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V
3.3V, and 3.5V
• Guaranteed 300mA Output
• Input Range from 2.7 up to 5.5V
• Thermal Shutdown
• Current Limiting
• Stability with Low ESR Capacitors
• Low Temperature Coefficient
• Lead Free Package: SOT25
• SOT25: Available in “Green” Molding Compound
(No Br, Sb)
• Lead Free Finish/RoHS Compliant (Note 1)
General Description
The AP139 is a positive voltage linear regulator utilizing CMOS
technology. The features that include low quiescent current
(45μA typ.), low dropout voltage, and high output voltage
accuracy, make it ideal for battery applications. EN input
connected to the device will produce a low bias current.
The space-saving SOT25 package is attractive for “pocket” and
“hand held” applications.
This rugged device has both thermal shutdown, and current limit
protections to prevent device failure under the “worst” operating
conditions.
In a low noise, regulated supply application, a 10nF capacitor is
necessary to be placed in between Bypass and Ground.
The AP139 is stable with a low ESR output capacitor of 1.0μF or
greater.
Applications
• Personal Communication Devices
• Home Electric/Electronic Appliances
• PC Peripherals
• Battery-Powered Devices
Ordering Information
AP139 - XX W X - 7
Output Voltage
15 :1.5V
18 :1.8V
20 :2.0V
25 :2.5V
28 :2.8V
30 :3.0V
33 :3.3V
35 :3.5V
Package
W : SOT25
Lead Free
L : Lead Free
G : Green
Packing
7 : Tape & Reel
Device
AP139-XXWL-7
Lead-free
AP139-XXWG-7
Package
Code
W
W
Packaging
(Note 2)
SOT25
SOT25
7” Tape and Reel
Quantity
Part Number Suffix
3000/Tape & Reel
-7
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.
AP139 Rev. 6
1 of 7
www.diodes.com
FEBRUARY 2009
© Diodes Incorporated