National Semiconductor LP2982 Micropower 50 mA Ultra Low‑Dropout Regulator Datasheet

The LP2982 is a 50 mA, fixed-output voltage regulator designed to provide ultra low dropout and lower noise in battery powered applications. It delivers unequaled performance in all specifications critical to battery-powered designs.


National Semiconductor LP2982 Micropower 50 mA Ultra Low‑Dropout Regulator Datasheet - cover page
Brand
National Semiconductor
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
17
File format
PDF
File size
864 KB
Published
09 May, 2012
Updated
29 September, 2023
Model
LP2982
MD5 checksum
70BCF51CF3E1F5A96F5E23E7EAA9AA70

About this manual

The LP2982 micropower regulator provides a fixed 50 mA output with ultra‑low dropout voltage and very low ground‑pin current, making it suitable for battery‑powered designs. It is offered in SOT‑23 and micro‑SMD (5‑bump) packages and requires only minimal external components.

The document includes detailed electrical characteristics, absolute maximum ratings, typical performance curves, ordering information for various voltage grades, and physical dimensions. It also contains application hints, package markings, and compliance notes.

What's inside

  • General Description
  • Features
  • Connection Diagrams
  • Ordering Information
  • Absolute Maximum Ratings
  • Electrical Characteristics
  • Typical Performance Characteristics
  • Physical Dimensions
  • Notes

Specifications

Output current50 mA (fixed)
Typical dropout voltage120 mV @ 50 mA load
Ground pin current375 pA @ 50 mA load
Output voltage accuracy±1.0 % (A‑grade)
Supply voltage range (operating)2.1 V to 16 V
Operating temperature range-40 °C to +125 °C

Frequently asked questions

What is the typical dropout voltage of the LP2982 at 50 mA?

The typical dropout voltage is 120 mV when the device supplies 50 mA.

What is the maximum output current the LP2982 can deliver?

The device can deliver a typical continuous output of 50 mA and a peak output current of about 150 mA.

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