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L4945

STMicroelectronics

L4945 by STMicroelectronics

STMicroelectronics' L4945 is a fixed positive single output LDO regulator with a max output current of 0.5A and dropout voltage of 0.75V. It operates in temperatures ranging from -40 to 125 °C, making it suitable for various applications requiring stable voltage regulation in electronic circuits.

Median Price

-

Lifecycle Status

Suppliers In-Stock

7

In-Stock Inventory

1k+

Distributors (In-Stock)

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

PC Components Company LLC

USA . 8,250 parts In-Stock

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8,250

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Bristol Electronics

USA . 5,250 parts In-Stock

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5,250

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Vyrian

USA . 3,108 parts In-Stock

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3,108

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Anansix

USA . 2,794 parts In-Stock

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2,794

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Digiode

USA . 527 parts In-Stock

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527

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Fibra_Brandt Electronic GMBH

Germany . 50 parts In-Stock

1+ parts

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50

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GES GmbH

Germany . 16 parts In-Stock

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16

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Distributors (Availability)

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IDEA Electronic Components Group

UK . 1,275 parts In-Stock

1+ parts

$5.069

100+ parts

-

1k+ parts

$4.562

10k+ parts

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1,275

$5.069

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$4.562

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MKK Technologies

India . 957 parts In-Stock

1+ parts

$9.532

100+ parts

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957

$9.532

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DigiPath Technology Company

USA . 957 parts In-Stock

1+ parts

$9.532

100+ parts

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957

$9.532

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AZTECH Wire

Italy . 96 parts In-Stock

1+ parts

$15.150

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96

$15.150

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Microchip USA

USA . 284 parts In-Stock

1+ parts

$224.249

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284

$224.249

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A-Z Elektronik GmbH

Germany . 5,048 parts In-Stock

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5,048

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Alle Elektronik GmbH

Germany . 3,365 parts In-Stock

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3,365

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Vigor

Singapore . 2,500 parts In-Stock

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2,500

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Parana Technologies

USA . 585 parts In-Stock

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$6.061

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585

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$6.061

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Corphita

USA . 546 parts In-Stock

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546

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Overview

Enhance your electronic projects with the L4945 Fixed Regulator by STMicroelectronics. With a reputation for high-quality components, STMicroelectronics delivers reliability and performance in every product. The L4945 is perfect for applications requiring a stable 5V output voltage with minimal dropout, making it ideal for a wide range of devices. Experience the value and benefits of this single output LDO regulator, offering precise regulation and efficiency for your designs. Upgrade to the L4945 and elevate your projects to the next level.

Feature Benefit Bullets

Package Body Material: PLASTIC/EPOXY

The use of plastic/epoxy material makes the product lightweight and durable, suitable for various industries.

Maximum Dropout Voltage-1: 1.75 V

The low dropout voltage ensures efficient power regulation and minimal power loss, making it energy-efficient.

Operating Temperature (TJ-Max): 125 °C

The high maximum operating temperature allows the regulator to function effectively in harsh environmental conditions.

Technology: BIPOLAR

The bipolar technology used in this regulator ensures stable and accurate output voltage, making it reliable for different applications.

Package Shape: RECTANGULAR

The rectangular package shape makes it easy to mount and integrate into various electronic systems.

Terminal Form: THROUGH-HOLE

The through-hole terminal form provides secure connections and ease of soldering during installation.

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

The low minimum operating temperature ensures the regulator's functionality in cold environments without compromising performance.

Minimum Output Voltage-1: 4.8 V

The minimum output voltage ensures stable power supply to connected devices, preventing voltage drops below this level.

Maximum Voltage Tolerance: 4 %

The tight voltage tolerance of 4% ensures precise output voltage regulation, suitable for sensitive electronic components.

Nominal Output Voltage-1: 5 V

The nominal output voltage of 5V makes it compatible with a wide range of electronic devices and circuits requiring a stable power source.

No. of Terminals: 3

The three terminals provide easy connectivity and integration with other components in a circuit, simplifying the installation process.

Package Style (Meter): FLANGE MOUNT

The flange mount package style offers secure attachment options, making it suitable for industrial applications where stability is crucial.

Adjustability: FIXED

The fixed adjustability simplifies the design and implementation process, ensuring consistent performance without the need for manual adjustments.

Terminal Pitch: 2.54 mm

The standard terminal pitch of 2.54mm allows easy compatibility with standard PCB layouts and socket connectors, enhancing usability.

Maximum Line Regulation: 0.01 %

The low line regulation ensures stable output voltage despite variations in input voltage, providing consistent performance under different operating conditions.

Regulator Type: FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

The fixed positive single output LDO regulator design ensures reliable and precise voltage regulation, suitable for applications requiring a stable power supply.

Terminal Finish: TIN LEAD

The tin lead terminal finish provides strong solder joints and corrosion resistance, ensuring long-term reliability in various environments.

Terminal Position: SINGLE

The single terminal position simplifies the installation process and reduces the risk of connectivity issues, ensuring a reliable electrical connection.

Maximum Output Voltage-1: 5.2 V

The maximum output voltage of 5.2V provides an extra margin for powering devices that may require slightly higher voltages, enhancing flexibility.

Maximum Load Regulation: 0.06 %

The low load regulation ensures stable output voltage under varying load conditions, making it suitable for applications with dynamic power requirements.

Minimum Input Voltage: 6 V

The minimum input voltage of 6V ensures proper functionality of the regulator without voltage dropout issues, providing consistent power supply to connected devices.

Maximum Output Current-1: 0.5 A

The maximum output current of 0.5A allows powering a wide range of devices and circuits with higher current requirements, making it versatile in various applications.

Nominal Dropout Voltage-1: 0.75 V

The nominal dropout voltage of 0.75V ensures efficient power regulation with minimal energy loss, enhancing overall power efficiency.

Maximum Input Voltage: 26 V

The maximum input voltage of 26V ensures compatibility with different power sources and protection against voltage spikes, ensuring the regulator's longevity.

Maximum Input Voltage Absolute: 35 V

The absolute maximum input voltage of 35V provides protection against unexpected voltage surges or transients, safeguarding the regulator and connected devices.

Technical Specifications

Fixed Regulators - Positive Single Output LDO L4945 attributes and parameters. Explore more Fixed Regulators - Positive Single Output LDO devices from STMicroelectronics

Specs

Adjustability:

FIXED

Maximum Dropout Voltage-1:

.75 V

Nominal Dropout Voltage-1:

.75 V

Maximum Input Voltage Absolute:

Maximum Input Voltage:

26 V

Minimum Input Voltage:

6 V

JESD-30 Code:

R-PSFM-T3

JESD-609 Code:

e0

Maximum Line Regulation:

.01 %

Maximum Load Regulation:

.06 %

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:

.5 A

Maximum Output Voltage-1:

5.2 V

Minimum Output Voltage-1:

4.8 V

Nominal Output Voltage-1:

5 V

Package Body Material:

PLASTIC/EPOXY

Package Equivalence Code:

SIP3,.1TB

Package Shape:

RECTANGULAR

Package Style (Meter):

FLANGE MOUNT

Qualification Status:

Not Qualified

Sub-Category:

Other Regulators

Surface Mount:

NO

Technology:

BIPOLAR

Terminal Finish:

TIN LEAD

Terminal Form:

Terminal Pitch:

2.54 mm

Terminal Position:

SINGLE

Maximum Voltage Tolerance:

4 %

Trade Compliance

L4945 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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