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Manufacturer Part #

LD2981ABM33TR

LD2981 Series 100 mA 3.3 V Fixed Output LDO Regulator with Inhibit - SOT-23-5

ECAD Model:
Mfr. Name: STMicroelectronics
Standard Pkg:
Product Variant Information section
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Product Specification Section
Technical Attributes
Attributes Table
Input Voltage-Min: 2.5V
Input Voltage-Max: 16V
Output Voltage Fixed: 3.3V
Dropout Voltage-Max: 375mV
Output Current-Max: 100mA
Tolerance (%): ±0.75%
Operating Temp Range: -40°C to +125°C
Regulator Topology: Fixed
Quiescent Current: 2600µA
No. of Outputs: Single
Output Noise: 160µV
Line Regulation (%): 0.032%
Package Style:  SOT-23-5 (SOT-25)
Mounting Method: Surface Mount
Features & Applications

The LD2981ABM33TR 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 thedevice is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. The LD2981AB/C is designed to work with low ESR ceramic capacitor.

Features:

  • Stable with low ESR ceramic capacitors
  • 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 100mA
  • 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
  • Smallest package SOT23-5L and SOT-89
  • Fast dynamic response to line and load changes

Applications:

  • Cellular phone
  • Palmtop/laptop computer
  • Personal digital
  • Assistant (PDA)
  • Personal stereo
  • Camcorder
  • Camera
Pricing Section
Global Stock:
0
Germany (Online Only):
0
3,000
Factory Stock:Factory Stock:
0
Minimum Order:
3000
Multiple Of:
3000
Total
$1,215.00
USD
Quantity
Web Price
3,000
$0.405
6,000
$0.385
9,000
$0.365
12,000
$0.345
15,000+
$0.33
Product Variant Information section