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LP2981A-28DBVR The Texas Instruments LP2981A-28DBVR is a 100-mA, 16-V low-dropout linear voltage regulator. It provides a fixed 2.8V output and features an enable pin for control.
Mfr Part #:

LP2981A-28DBVR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LP2981A-28DBVR is a 100-mA, 16-V low-dropout linear voltage regulator. It provides a fixed 2.8V output and features an enable pin for control.
✓ Total Stock: 141,397 pcs
$ Price Range: $0.36

LP2981A-28DBVR Available from 2 distributors

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✓ Non-Authorised
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Romaks Technologies ✓
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139,077 pcs
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139077 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
2,320 pcs
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2320 pcs On Request 1 On Request On Request 06+ On Request On Request
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LP2981A-28DBVR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Lead Style
Load Capacitance
Mounting Type
Noise
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
PSRR
Protection Features
SVHC Present
Supplier Device Package
Thermal Resistance
Voltage
Voltage Dropout (Max)
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LP2981A-28DBVR Description

Short technical summary and product information.

The Texas Instruments LP2981A-28DBVR is a high-accuracy, low-dropout (LDO) linear voltage regulator designed for various applications requiring stable power delivery. It can supply up to 100mA of output current with a maximum input voltage of 16V and a fixed output voltage of 2.8V.

 

Key electrical characteristics include a low quiescent current of 69µA at no load and a typical dropout voltage of 200mV at 100mA. The regulator also offers features such as over-current, over-temperature, and short-circuit protection, along with an enable pin for power sequencing.

 

This device is supplied in a compact SOT-23-5 package, suitable for surface mount applications where space is constrained. It operates within a temperature range of -40°C to 125°C and requires a minimum load capacitance of 2.2µF for stability.

LP2981A-28DBVR Quick Information

Product Type: Linear Voltage Regulator
Series: LP2981A
Canonical Name: LP2981A-28DBVR Low-Dropout Voltage Regulator
Subcategory: LDO Regulators

LP2981A-28DBVR Compliance

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

LP2981A-28DBVR Estimated Pricing

Qty Low High
1+ $0.36 $0.36

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

LP2981A-28DBVR Features

  • 100mA output current capability.
  • Fixed 2.8V output voltage.
  • Low dropout voltage (200mV typical).
  • Enable pin for control.
  • SOT-23-5 surface mount package.

LP2981A-28DBVR Applications

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

LP2981A-28DBVR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the LP2981A-28DBVR?

The input voltage range is 2.2V to 16V for the legacy chip and 2.5V to 16V for the new chip.

What is the output voltage of the LP2981A-28DBVR?

The fixed output voltage is 2.8V, with an adjustable range of 1.2V to 5.0V for the device family.

What is the maximum output current?

The maximum output current is 100mA.

What is the operating temperature range?

The operating temperature range is -40°C to 125°C.

What package does the LP2981A-28DBVR come in?

It is available in a SOT-23-5 surface-mount package (also SC-74A, SOT-753).

What is the typical dropout voltage?

The typical dropout voltage is 200mV at 100mA load.

What is the quiescent current at no load?

The quiescent current is 69µA at no load for the new chip.

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