LP2981A-28DBVR

Obsolete

Texas Instruments

100-MA, 16-V, LOW-DROPOUT VOLTAGE REGULATOR WITH HIGH-ACCURACY & ENABLE

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Search across all available documentation for this part.

DocumentsLP2981x 100mA, Low-Dropout Regulator in SOT-23 Package datasheet (Rev. I)Packaging Limits Range of Linear Regulators +13

LP2981A-28DBVR

Obsolete

Texas Instruments

100-MA, 16-V, LOW-DROPOUT VOLTAGE REGULATOR WITH HIGH-ACCURACY & ENABLE

Deep-Dive with AI

DocumentsLP2981x 100mA, Low-Dropout Regulator in SOT-23 Package datasheet (Rev. I)Packaging Limits Range of Linear Regulators +13

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LP2981A-28DBVR

Control Features	Enable
Current - Output	100 mA
Current - Quiescent (Iq)	95 µA
Current - Supply (Max) [Max]	1.7 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	SC-74A, SOT-753
Protection Features	Over Temperature, Over Current, Short Circuit
Supplier Device Package	SOT-23-5
Voltage - Input (Max) [Max]	16 V
Voltage - Output (Min/Fixed)	2.8 V
Voltage Dropout (Max) [Max]	0.37 V

LP2981-N Series

100-mA, 16-V, low-dropout voltage regulator with high-accuracy & enable

Part	Output Type	Supplier Device Package	Package / Case	Control Features	Voltage - Output (Min/Fixed)	Current - Quiescent (Iq)	Voltage Dropout (Max) [Max]	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input (Max) [Max]	Number of Regulators	Protection Features	Mounting Type	Current - Supply (Max) [Max]	Current - Output
Texas Instruments LP2981IM5X-3.6	1.81 mOhm	SOT-23-5	SC-74A SOT-753	Enable	3.6 V	95 µA	0.37 V	Positive	125 °C	-40 °C	16 V	1	Over Current Over Temperature Short Circuit	Surface Mount	1.7 mA	100 mA
Texas Instruments LP2981A-30DBVRE4	1.81 mOhm	SOT-23-5	SC-74A SOT-753	Enable		95 µA	0.37 V	Positive	125 °C	-40 °C	16 V	1	Over Current Over Temperature Short Circuit	Surface Mount	1.7 mA	100 mA
Texas Instruments LP2981A-30DBVTE4	1.81 mOhm	SOT-23-5	SC-74A SOT-753	Enable		95 µA	0.37 V	Positive	125 °C	-40 °C	16 V	1	Over Current Over Temperature Short Circuit	Surface Mount	1.7 mA	100 mA
Texas Instruments LP2981IM5X-3.3/NOPB	1.81 mOhm	SOT-23-5	SC-74A SOT-753	Enable	3.3 V	95 µA	0.37 V	Positive	125 °C	-40 °C	16 V	1	Over Current Over Temperature Short Circuit	Surface Mount	1.7 mA	100 mA
Texas Instruments LP2981A-28DBVR	1.81 mOhm	SOT-23-5	SC-74A SOT-753	Enable	2.8 V	95 µA	0.37 V	Positive	125 °C	-40 °C	16 V	1	Over Current Over Temperature Short Circuit	Surface Mount	1.7 mA	100 mA
Texas Instruments LP2981AIM5-3.0/NOPB	1.81 mOhm	SOT-23-5	SC-74A SOT-753	Enable		95 µA	0.37 V	Positive	125 °C	-40 °C	16 V	1	Over Current Over Temperature Short Circuit	Surface Mount	1.7 mA	100 mA
Texas Instruments LP2981A-33DBVT	1.81 mOhm	SOT-23-5	SC-74A SOT-753	Enable	3.3 V	95 µA	0.37 V	Positive	125 °C	-40 °C	16 V	1	Over Current Over Temperature Short Circuit	Surface Mount	1.7 mA	100 mA
Texas Instruments LP2981IM5-5.0/NOPB	1.81 mOhm	SOT-23-5	SC-74A SOT-753	Enable	5 V	95 µA	0.37 V	Positive	125 °C	-40 °C	16 V	1	Over Current Over Temperature Short Circuit	Surface Mount	1.7 mA	100 mA
Texas Instruments LP2981AIM5-3.0	1.81 mOhm	SOT-23-5	SC-74A SOT-753	Enable		95 µA	0.37 V	Positive	125 °C	-40 °C	16 V	1	Over Current Over Temperature Short Circuit	Surface Mount	1.7 mA	100 mA
Texas Instruments LP2981A-28DBVTG4	1.81 mOhm	SOT-23-5	SC-74A SOT-753	Enable	2.8 V	95 µA	0.37 V	Positive	125 °C	-40 °C	16 V	1	Over Current Over Temperature Short Circuit	Surface Mount	1.7 mA	100 mA

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Texas Instruments	LARGE T&R	1	$ 0.65
		100	$ 0.50
		250	$ 0.36
		1000	$ 0.26

Description

General part information

LP2981-N Series

The LP2981 and LP2981A (LP2981x) are fixed-output, low-dropout (LDO) voltage regulators supporting an input voltage range from 2.5V to 16V (for new chip only) and up to 100mA of load current. The LP2981x support an output range of 1.2V to 5.0V (new chip).

Additionally, the LP2981x (new chip) has a ±1% output accuracy across load and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.

In the new chip, wide bandwidth PSRR performance is 75dB at 1kHz and 45dB at 1MHz to help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.