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ST LD2981ABM50TR product image
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ST LD2981ABM50TRRoHS

Manufacturer
ST
MPN
LD2981ABM50TR
LCSC Part #
C283469
Packaging
SOT-23-5L
Customer #
Key Attributes
Ultra low-drop voltage regulators with inhibit
Datasheetpdf iconST LD2981ABM50TR
In-Stock: 220
220 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 0.2665$ 0.27
10+$ 0.2617$ 2.62
30+$ 0.2568$ 7.70
100+$ 0.2535$ 25.35
Standard Packaging3000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
ManufacturerST
PackagingSOT-23-5L
Output Voltage5V
Number of Outputs1
Operating Temperature-40℃~+125℃
Supply Current (Iq)150uA
Output ConfigurationPositive
Operating Voltage16V
Output Current100mA
Output TypeFixed
FeaturesEnable control;Reverse-polarity current protection;Short Circuit Protection;Thermal shutdown;Over Current Protection
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

The LD2981 is a 100 mA fixed-output voltage regulator. The low-drop voltage and the ultra low quiescent current make them suitable for low noise, low power applications and in battery powered systems. The quiescent current in sleep mode is less than 1 μA when INHIBIT pin is pulled low. Shutdown logic control function is available on pin n° 3 (TTL compatible). This means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. The LD2981 is designed to work with low ESR ceramic capacitor. Typical applications are in cellular phone, palmtop/laptop computer, personal digital assistant (PDA), personal stereo, camcorder and camera.

Features

AI Translation
  • Ultra low dropout voltage (0.17 V typ. at 100 mA load, 7 mV typ. at 1 mA load)
  • Very low quiescent current (80 μA typ. at no load in on mode; max 1 μA in off mode)
  • Guaranteed output current up to 100 mA
  • Logic-controlled electronic shutdown
  • Output voltage of 2.5; 3.0; 3.3; 5.0 V
  • Internal current and thermal limit
  • ±0.75% tolerance output voltage available (A version)
  • Output low noise voltage 160 μVRMS
  • Temperature range: -40 to 125°C
  • Small package SOT23-5L and SOT-89
  • Fast dynamic response to line and load changes

Applications

AI Translation
  • cellular phone
  • palmtop/laptop computer
  • personal digital assistant (PDA)
  • personal stereo
  • camcorder
  • camera