LP2981-33DBVR The Texas Instruments LP2981-33DBVR is a 100mA, low-dropout voltage regulator offering a fixed 3.3V output. It operates with an input voltage up to 16V and is housed in a SOT-23-5 package.
Mfr Part #:

LP2981-33DBVR

Available from 6 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LP2981-33DBVR is a 100mA, low-dropout voltage regulator offering a fixed 3.3V output. It operates with an input voltage up to 16V and is housed in a SOT-23-5 package.
✓ Total Stock: 259,175 pcs
$ Price Range: $0.16

LP2981-33DBVR Available from 6 distributors

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✓ Non-Authorised

LP2981-33DBVR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Load Capacitance
Mounting Type
Noise
Number of Regulators
Operating Temperature
Output Configuration
Output Type
PSRR
Protection Features
Supplier Device Package
Supplier Package
Thermal Resistance
Voltage
Voltage Dropout (Max)

LP2981-33DBVR Description

Short technical summary and product information.

The Texas Instruments LP2981-33DBVR is a linear, low-dropout (LDO) voltage regulator designed for efficient power management. It provides a stable fixed output voltage of 3.3V with a maximum output current of 100mA.

 

Key electrical specifications include an input voltage range of 2.2V to 16V (legacy chip) or 2.5V to 16V (new chip), and a typical dropout voltage of 200mV at 100mA. The regulator features an enable pin for control and offers protection against over current, over temperature, and short circuits.

 

With a low quiescent current of 65µA (typical) and a noise level of 160µVrms, the LP2981-33DBVR is suitable for various applications requiring clean power. It is stable with a minimum load capacitance of 2.2µF and comes in a compact SOT-23-5 surface-mount package.

 

This device operates within an ambient temperature range of -40°C to 125°C, making it robust for demanding environments. Its fixed output options and reliable performance make it a versatile choice for battery-powered devices and other sensitive electronics.

LP2981-33DBVR Quick Information

Product Type: Low-Dropout Voltage Regulator
Canonical Name: LP2981-33DBVR 100mA, 16V Low-Dropout Voltage Regulator
Subcategory: Low-Dropout (LDO) Regulator

LP2981-33DBVR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LP2981-33DBVR Estimated Pricing

Qty Low High
1+ $0.16 $0.16

Estimated market price range - modelled values for guidance only, not live distributor offers.

LP2981-33DBVR Features

  • Provides a fixed 3.3V output voltage.
  • Maximum output current is 100mA.
  • Input voltage range up to 16V.
  • Features enable control for power management.
  • Housed in a compact SOT-23-5 package.

LP2981-33DBVR Applications

  • Ideal for battery-powered devices.
  • Suitable for portable electronics.
  • Used in power supply circuits.
  • Provides stable voltage regulation.

LP2981-33DBVR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the LP2981-33DBVR?

The LP2981-33DBVR operates with a minimum input voltage of 2.2V (legacy chip) or 2.5V (new chip) and a maximum input voltage of 16V.

What is the operating temperature range?

-40°C to 125°C.

What package is the LP2981-33DBVR available in?

SOT-23-5 (also known as SC-74A or SOT-753) surface-mount package.

What is the output voltage and current capability?

The LP2981-33DBVR provides a fixed 3.3V output and can deliver up to 100mA of output current.

What is the dropout voltage?

Typical dropout voltage is 200mV, with a maximum of 0.37V at 100mA load.

What is the quiescent current?

The typical quiescent current is 65µA (0.065mA).

What is the output voltage accuracy?

The new chip provides ±0.5% accuracy (A-grade and standard grade); legacy chips provide ±0.75% (A-grade) or ±1.25% (standard-grade).

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