Diodes AP139 User Manual
Ap139, Features, General description
AP139
300mA LOW-NOISE CMOS LDO
AP139 Rev. 6
1 of 7
FEBRUARY 2009
©
Diodes Incorporated
Lead-free
•
Very Low Dropout Voltage
•
Low Current Consumption: Typ. 45
μA, 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)
The AP139 is a positive voltage linear regulator utilizing CMOS
technology. The features that include low quiescent current
(45
μA 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 1.0
μF or
greater.
•
Personal Communication Devices
• Home
Electric/Electronic
Appliances
• PC
Peripherals
• Battery-Powered
Devices
Output Voltage
Package
Packing
W : SOT25
Lead Free
G : Green
7 : Tape & Reel
L : Lead Free
AP139 - XX W X - 7
15 :1.5V
18 :1.8V
20 :2.0V
25 :2.5V
28 :2.8V
30 :3.0V
33 :3.3V
35 :3.5V
Device
Package
Code
Packaging
(Note 2)
7” Tape and Reel
Quantity
Part Number Suffix
AP139-XXWL-7
W SOT25
3000/Tape & Reel
-7
AP139-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
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
Features
General Description
Applications
Ordering Information