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LD2981CU18TR

STMicroelectronics

LD2981CU18TR by STMicroelectronics

LD2981CU18TR by STMicroelectronics is a fixed positive LDO regulator with a nominal output voltage of 1.8 V and a max output current of 0.1 A. It operates efficiently with a max dropout voltage of 0.375 V and supports -40 °C to 125°C temperatures, ideal for compact electronic applications. Its small outline package ensures easy surface mounting in various devices.

Median Price

-

Lifecycle Status

Suppliers In-Stock

3

In-Stock Inventory

1k+

Distributors (In-Stock)

Supplier In-Stock 1+ parts 100+ parts 1k+ parts 10k+ parts

Vyrian

USA . 5,456 parts In-Stock

1+ parts

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5,456

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Digiode

USA . 3,100 parts In-Stock

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3,100

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Anansix

USA . 1,607 parts In-Stock

1+ parts

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1,607

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Distributors (Availability)

Supplier In-Stock 1+ parts 100+ parts 1k+ parts 10k+ parts

IDEA Electronic Components Group

UK . 1,966 parts In-Stock

1+ parts

$6.993

100+ parts

-

1k+ parts

$6.294

10k+ parts

-

1,966

$6.993

-

$6.294

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Microchip USA

USA . 272 parts In-Stock

1+ parts

$8.774

100+ parts

-

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272

$8.774

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MKK Technologies

India . 687 parts In-Stock

1+ parts

$13.150

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687

$13.150

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DigiPath Technology Company

USA . 687 parts In-Stock

1+ parts

$13.150

100+ parts

-

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10k+ parts

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687

$13.150

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-

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AZTECH Wire

Italy . 1,157 parts In-Stock

1+ parts

$19.890

100+ parts

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1,157

$19.890

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Component Stockers USA

USA . 566 parts In-Stock

1+ parts

$99.990

100+ parts

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566

$99.990

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Vigor

Singapore . 4,185 parts In-Stock

1+ parts

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4,185

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Parana Technologies

USA . 1,242 parts In-Stock

1+ parts

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100+ parts

$8.361

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1,242

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$8.361

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Corphita

USA . 940 parts In-Stock

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940

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Overview

Unlock unparalleled performance with the LD2981CU18TR from STMicroelectronics, a trusted leader in semiconductor innovation. This compact LDO regulator ensures stable voltage output while enhancing efficiency in various applications, from consumer electronics to industrial equipment. With its robust design and wide operating temperature range, it guarantees reliability under diverse conditions. Elevate your projects with a solution that combines quality, versatility, and exceptional value!

Feature Benefit Bullets

Package Body Material: PLASTIC/EPOXY

The sturdy plastic/epoxy body material offers durability and environmental resistance, ensuring the regulator can perform reliably in various conditions.

Maximum Dropout Voltage: 0.375 V

A lower maximum dropout voltage is beneficial as it allows for efficient voltage regulation, minimizing power loss and improving device performance.

Surface Mount: YES

Surface mount technology ensures easy integration onto PCBs, saving valuable space and facilitating automated assembly processes.

Operating Temperature (TJ-Max): 125 °C

This high operating temperature limit indicates the regulator's capability to function efficiently even in demanding thermal environments.

Technology: BIPOLAR

Bipolar technology typically provides better performance in terms of noise and power efficiency, making it suitable for sensitive applications.

Package Shape: RECTANGULAR

The rectangular shape contributes to efficient PCB space usage, which is crucial for compact electronic designs.

Terminal Form: FLAT

Flat terminals facilitate excellent solderability and enhance the mechanical stability of the device once mounted.

Operating Temperature (TJ-Min): -40 °C

The wide operating temperature range ensures reliability in extreme environments, suitable for automotive and industrial applications.

Packing Method: TR

Tape and reel packing allows for efficient handling and automated placement during manufacturing, reducing assembly time and costs.

Minimum Output Voltage: 1.737 V

A guaranteed minimum output voltage ensures that the regulator consistently delivers the necessary voltage to the load under all operating conditions.

Maximum Voltage Tolerance: 3.5 %

This tolerance rate ensures that the output voltage remains stable and reliable, enhancing the overall performance of downstream components.

Nominal Output Voltage: 1.8 V

A fixed nominal output voltage is ideal for powering specific components, simplifying circuit design and reducing the need for external components.

No. of Terminals: 3

Having three terminals allows for straightforward integration into a variety of circuit configurations, providing flexibility in design.

Package Style (Meter): SMALL OUTLINE

The small outline package design is ideal for space-constrained applications, allowing for compact system designs without sacrificing performance.

Adjustability: FIXED

A fixed output voltage simplifies design considerations, avoiding the need for additional components to adjust voltage levels.

Terminal Pitch: 1.5 mm

The 1.5 mm terminal pitch allows for compatibility with a wide variety of PCB layouts, making it easier to integrate into existing designs.

Maximum Line Regulation: 0.0076 %

Excellent line regulation ensures consistent output voltage despite changes in input voltage, enhancing the reliability of powered devices.

Regulator Type: FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

This type of regulator provides stable and efficient voltage regulation ideally suited for powering low-voltage components.

Terminal Finish: MATTE TIN

A matte tin finish provides good solderability and corrosion resistance, ensuring long-term reliability of connections.

Terminal Position: SINGLE

Single terminal positioning simplifies board layout, easing the design process for engineers and reducing complexity in PCB routing.

Maximum Output Voltage: 1.863 V

A defined maximum output voltage ensures compatibility with a wide variety of loads, ensuring versatility in application.

Maximum Seated Height: 1.6 mm

A low seated height allows for a slimmer profile in designs, beneficial for applications requiring low-profile components.

Width: 2.445 mm

Compact dimensions are suitable for tight spaces on PCB, helping engineers maximize layout efficiency in their designs.

Minimum Input Voltage: 2.5 V

A low minimum input requirement expands the regulator's usability in battery-powered devices, allowing for efficient operation.

Maximum Output Current: 0.1 A

The ability to supply 0.1 A of current makes this LDO suitable for various low-power applications, enhancing its versatility.

Peak Reflow Temperature: 260 °C

The peak reflow temperature allows for compatibility with modern soldering techniques, ensuring effectively robust solder joints.

Nominal Dropout Voltage: 0.2 V

A nominal dropout voltage of 0.2 V ensures efficient performance, minimizing losses during operation and maximizing energy usage.

Length: 4.5 mm

A compact length contributes to space-efficient designs, making the regulator a perfect fit for applications with limited board space.

Maximum Input Voltage: 16 V

A high maximum input voltage offers compatibility with a broad range of power sources, enhancing design flexibility.

Maximum Input Voltage Absolute: 16 V

This absolute maximum input voltage ensures the regulator can withstand spikes without damage, increasing the reliability of the product.

Technical Specifications

Fixed Regulators - Positive Single Output LDO LD2981CU18TR attributes and parameters. Explore more Fixed Regulators - Positive Single Output LDO devices from STMicroelectronics

Specs

Adjustability:

FIXED

Maximum Dropout Voltage-1:

.375 V

Nominal Dropout Voltage-1:

.2 V

Maximum Input Voltage Absolute:

Maximum Input Voltage:

16 V

Minimum Input Voltage:

2.5 V

JESD-30 Code:

R-PSSO-F3

JESD-609 Code:

e3

Length:

4.5 mm

Maximum Line Regulation:

.0076 %

Moisture Sensitivity Level (MSL):

1

No. of Functions:

1

No. of Outputs:

1

No. of Terminals:

3

Operating Temperature (TJ-Max):

125 Cel

Operating Temperature (TJ-Min):

-40 Cel

Maximum Output Current-1:

.1 A

Maximum Output Voltage-1:

1.863 V

Minimum Output Voltage-1:

1.737 V

Nominal Output Voltage-1:

1.8 V

Package Body Material:

PLASTIC/EPOXY

Package Equivalence Code:

TO-243

Package Shape:

RECTANGULAR

Package Style (Meter):

SMALL OUTLINE

Packing Method:

TR

Peak Reflow Temperature (C):

260

Qualification Status:

Not Qualified

Maximum Seated Height:

1.6 mm

Sub-Category:

Other Regulators

Surface Mount:

YES

Technology:

BIPOLAR

Terminal Finish:

MATTE TIN

Terminal Form:

Terminal Pitch:

1.5 mm

Terminal Position:

SINGLE

Maximum Voltage Tolerance:

Width:

2.445 mm

Trade Compliance

LD2981CU18TR Regulators trade compliance attributes, and parameters.

ECCN

EAR99

ECCN Governance

EAR

HTS

8542.39.00.01

SB

8542.39.00.00

Manufacturer Highlights

STMicroelectronics

STMicroelectronics is a global leader in the semiconductor manufacturing industry, with over 35 years of experience providing innovative and advanced technologies for customers around the world. Headquartered in Netherlands, STMicroelectronics has more than 51,323 employees worldwide and operates across 32 countries all over Europe, Asia-Pacific and the Americas. The company’s portfolio includes integrated circuits, discrete components, application-specific standard products, and computer chipsets. STMicroelectronics serves a wide range of industries such as automotive, consumer markets, healthcare and industrial applications.

Management team

President, CEO

Jean-Marc Chery

President, CFO, Finance, Purchasing,Enterprise Risk Management & Resilience

Lorenzo Grandi

President, Sales & Marketing

Jerome Roux

Manufacturer fab locations 33

Fab name Location Fab Initiation Wafer Capacity

Castelletto

Fabrication

Fab Initiation

1968

Italy

Castelletto

Wafer Capacity

1968

SGFAB AMK 6

Fabrication

Fab Initiation

2000

Singapore

Singapore

Wafer Capacity

29,000

2000

29,000

AG200

Fabrication

Fab Initiation

2000

Italy

Agrate Brianza

Wafer Capacity

14,000

2000

14,000

RST 8

Fabrication

Fab Initiation

2000

France

Rousset

Wafer Capacity

35,000

2000

35,000

Crolles 1

Fabrication

Fab Initiation

1993

France

Crolles

Wafer Capacity

30,000

1993

30,000

Crolles 2-ext. mod 5

Fabrication

Fab Initiation

-

France

Crolles

Wafer Capacity

-

Crolles 2-ext. mod 2

Fabrication

Fab Initiation

2022

France

Crolles

Wafer Capacity

2022

Crolles 2-ext. mod 3

Fabrication

Fab Initiation

2023

France

Crolles

Wafer Capacity

2023

Crolles 2

Fabrication

Fab Initiation

2004

France

Crolles

Wafer Capacity

28,000

2004

28,000

AG200

Fabrication

Fab Initiation

1985

Italy

Agrate Brianza

Wafer Capacity

14,000

1985

14,000

SiC Fab

Fabrication

Fab Initiation

2006

Sweden

Norrköping

Wafer Capacity

10,000

2006

10,000

Fab 3

Fabrication

Fab Initiation

2005

France

Tours

Wafer Capacity

2,000

2005

2,000

Fab 1 & Fab 2

Fabrication

Fab Initiation

1978

France

Tours

Wafer Capacity

55,000

1978

55,000

Fab 2

Fabrication

Fab Initiation

1997

Italy

Catania

Wafer Capacity

30,000

1997

30,000

SGFAB-AMK 6E

Fabrication

Fab Initiation

2003

Singapore

Singapore

Wafer Capacity

145,000

2003

145,000

SGFAB-AMJ 9

Fabrication

Fab Initiation

1984

Singapore

Singapore

Wafer Capacity

152,000

1984

152,000

AG300 (R3)

Fabrication

Fab Initiation

2022

Italy

Agrate Brianza

Wafer Capacity

2022

Fab 2

Fabrication

Fab Initiation

1980

Italy

Catania

Wafer Capacity

25,000

1980

25,000

AG200

Fabrication

Fab Initiation

1987

Italy

Agrate Brianza

Wafer Capacity

34,000

1987

34,000

AG300

Fabrication

Fab Initiation

2024

Italy

Agrate Brianza

Wafer Capacity

2024

Crolles 2-ext. mod 1

Fabrication

Fab Initiation

2020

France

Crolles

Wafer Capacity

2,000

2020

2,000

Fab 1 6-inch fab

Fabrication

Fab Initiation

2013

Italy

Catania

Wafer Capacity

11,000

2013

11,000

SiC 6-inch line

Fabrication

Fab Initiation

2021

Singapore

Singapore

Wafer Capacity

2021

Fab 1 6-inch fab

Fabrication

Fab Initiation

2020

Italy

Catania

Wafer Capacity

2,500

2020

2,500

200mm GaN

Fabrication

Fab Initiation

2021

France

Tours

Wafer Capacity

2,500

2021

2,500

Fab 2

Fabrication

Fab Initiation

2018

Italy

Catania

Wafer Capacity

14,000

2018

14,000

SGFAB-AMK 8

Fabrication

Fab Initiation

2001

Singapore

Singapore

Wafer Capacity

30,000

2001

30,000

Crolles 2- JV Fab

Fabrication

Fab Initiation

2024

France

Crolles

Wafer Capacity

2024

SGFAB-AMK 6

Fabrication

Fab Initiation

2016

Singapore

Singapore

Wafer Capacity

38,125

2016

38,125

SGFAB-AMK 2E

Fabrication

Fab Initiation

2010

Singapore

Singapore

Wafer Capacity

20,000

2010

20,000

Silicon Carbide A.B.

Fabrication

Fab Initiation

2021

Sweden

Norrköping

Wafer Capacity

2021

SiC wafer/EPI Fab

Fabrication

Fab Initiation

2023

Italy

Catania

Wafer Capacity

2023

SiC Device Fab

Fabrication

Fab Initiation

2025

Italy

Catania

Wafer Capacity

2025

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