AP139-28WA中文资料

AP139

300mA Low-Noise CMOS LDO

Features

- Very low dropout voltage

- Low current consumption: Typ.45µA, Max. 60µA - Output voltage: 1.5V,1.8V,2.0V, 2.5V, 2.8V, 3.0V 3.3V, and 3.5V

- Guaranteed 300mA output - Input range up to 7.0V - Thermal shutdown - Current limiting

- Stability with low ESR capacitors - Low temperature coefficient

- Pb-free package: SOT23-5L,TSOT23-5L

Applications

- Battery-powered devices

- Personal communication devices - Home electric/electronic appliances - PC peripherals

General Descriptions

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 CMOS has low bias current. The space-saving SOT23-5L and TSOT23-5L 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.

Pin Assignments

13

25

4

V IN EN

GND V OUT

AP139

SOT23-5/TSOT23-5

(Top View)

Pin Descriptions

Pin Name Pin

No.

Function

V IN 1 Power Supply GND 2 Ground EN 3 Enable Pin BYP 4 Bypass Signal Pin V OUT 5 Output

Ordering Information

AP139

XX X X W : SOT23-5L TW:TSOT23-5L

Output voltage

Package

15: 1.5V 18: 1.8V 20: 2.0V 25: 2.5V 28: 2.8V 30: 3.0V 33: 3.3V 35: 3.5V

Blank: Tube A: Taping

Packing

AP139

300mA Low-Noise CMOS LDO

Current Limit

Thermal Shutdown

AMP

+

-Vref

BYP

EN 1uA

V OUT

GND

V IN

R1

R2

Absolute Maximum Ratings

Symbol Parameter Rating Unit

V IN Input Voltage +7 V

I OUT Output Current P D / (V IN -V O ) mA V OUT Output Voltage GND - 0.3 to V IN + 0.3 V

ESD Classification B

T A Ambient Temperature Range -40 to +85 ºC T J Junction Temperature Range -40 to +125 ºC

Thermal Information

Symbol Parameter Maximum Unit

θjc Thermal Resistance SOT23-5L 160 ºC/W P D Internal Power Dissipation (∆T=100 ºC) SOT23-5L 250 mW T J Maximum Junction Temperature 150 ºC T Lead Maximum Lead Temperature (10 sec) 300 ºC