LM39100_10 参数 Datasheet PDF下载

1A Low-Voltage Low-Dropout Regulator

FEATURES

Fixed and adjustable output voltages to 1.24V

410mV typical dropout at 1A

Ideal for 3.0V to 2.5V conversion

Ideal for 2.5V to 1.8V or 1.5V conversion

1A minimum guaranteed output current

1% initial accuracy

Low ground current

Current limiting and thermal shutdown

Reversed-battery protection

Reversed-leakage protection

Fast transient response

Low-profile SOT-223 package

Moisture Sensitivity Level 3

LM39100/39101/39102

SOT-223 PKG

TO-252 3L / 5L PKG

SOP-8 PKG

APPLICATION

Battery Powered Equipments

Motherboards and Graphic Cards

Microprocessor Power Supplies

Peripheral Cards

High Efficiency Linear Regulators

Battery Chargers

DESCRIPSION

ORDERING INFORMATION

Device

LM39100S-X.X

LM39100GS-X.X

LM39100RS-X.X

LM39100GRS-X.X

LM39101RS-X.X

LM39101GRS-X.X

LM39102RS

LM39102GRS

LM39101D-X.X

LM39102D

Package

SOT-223

TO-252 3L

TO-252 5L

SOP-8

X.X = Output Voltage = 1.5, 1.8, 2.5, 3.3, 5.0

The LM39100/1/2 is 1A low-dropout linear voltage

regulators that provide low-voltage, high-current output.

The LM39100/1/2 offers extremely low dropout (typically 410mV at 1A) and low ground current (typically 12mA

at 1A). The LM39100 is a fixed output regulator offered in the SOT-223 package. The LM39101 and LM39102

are fixed and adjustable regulators, respectively, in SOP-8 and TO-252 Packages.

The LM39100/1/2 is ideal for PC add-in cards that need to convert from standard 5V to 3.3V, 3.3V to 2.5V or

2.5V to1.8V. A guaranteed maximum dropout voltage of 630mV overall operating conditions allows the

LM39100/1/2 to provide2.5V from a supply as low as 3.13V and 1.8V from a supply as low as 2.43V. The

LM39100/1/2 is fully protected with over current limiting, thermal shutdown, and reversed-battery protection.

Fixed voltages of 5.0V, 3.3V, 2.5V, 1.8V and 1.5V are available on LM39100/1 with adjustable output voltages

to 1.24V on LM39102.

Absolute Maximum Ratings

(Note 1)

CHARACTERISTIC

Supply Voltage

Enable Voltage

Output Voltage

Lead Temperature (Soldering, 5 sec)

Storage Temperature Range

SYMBOL

V

IN

V

EN

V

OUT

T

SOL

T

STG

MIN.

- 0.3

-

-0.3

-

-65

MAX.

+ 20

+ 20

V

IN

+0.3

260

+ 150

UNIT

V

V

V

℃

℃

Nov. 2010 - Rev. 1.5.1

-

1

-

HTC