Datasheet > LP2982

LP2982

更新时间： 2023-09-03 20:28:32

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
29页	965K
描述
具有低噪声和使能功能的 50mA、16V、低压降稳压器

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LP2982

SNVS128K –MARCH 2000–REVISED JUNE 2016

LP2982 50-mA Micropower Ultra-Low-Dropout LDO in SOT-23 Package

1 Features

3 Description

The LP2982 is a 50-mA, fixed-output voltage LDO

designed to provide ultra-low dropout and lower noise

in battery-powered applications.

•

2.1-V to 16-V Input Voltage

•

Ultra-Low-Dropout Voltage

Ensured 50-mA Output Current

Using an optimized vertically integrated PNP (VIP)

process, the LP2982 delivers unequaled performance

in all specifications critical to battery-powered

designs:

Typical Dropout Voltage 180 mV at 80 mA

Requires Minimum External Components

< 1 μA Quiescent Current When Shut Down

Low Ground Pin Current at All Loads

Output Voltage Accuracy 1% (A Grade)

High Peak Current Capability (150 mA Typical)

Wide Supply Voltage Range (16 V Maximum)

Low Z_OUT0.3 Ω Typical (10 Hz to 1 MHz)

Overtemperature and Overcurrent Protection

−40°C to +125°C Junction Temperature Range

Dropout Voltage: Typically 120 mV at 50 mA load,

and 7 mV at 1 mA load.

Ground Pin Current: Typically 375 μA at 50 mA load,

and 80 μA at 1 mA load.

Sleep Mode: Less than 1-μA quiescent current when

ON/OFF pin is pulled low.

Precision Output: 1% tolerance output voltages

available (A grade).

2 Applications

Low Noise: By adding an external bypass capacitor,

output noise can be reduced to 30 μV (typical).

•

Cellular Phones

Palmtop and Laptop Computers

Personal Digital Assistants (PDA)

Camcorders, Personal Stereos, Cameras

Device Information⁽¹⁾

PART NUMBER

LP2982

PACKAGE

BODY SIZE (NOM)

SOT-23 (5)

2.90 mm × 1.60 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic

OUT

ON/OFF

ON/OFF BYPASS

GND

hCC

BYPASS

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...29

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