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L4946B

STMicroelectronics

L4946B by STMicroelectronics

L4946B by STMicroelectronics is a fixed positive multiple output LDO regulator with a max dropout voltage of 0.6V and operates b/w -40 °C to 150°C. It delivers up to 10V at 0.125A across four outputs, ideal for power management in electronic devices. Its compact design ensures efficient thermal performance and reliability in various applications.

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

Digiode

USA . 3,108 parts In-Stock

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3,108

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Anansix

USA . 2,480 parts In-Stock

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2,480

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Vyrian

USA . 1,312 parts In-Stock

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1,312

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Distributors (Availability)

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

IDEA Electronic Components Group

UK . 137 parts In-Stock

1+ parts

$3.630

100+ parts

-

1k+ parts

$3.267

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137

$3.630

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$3.267

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MKK Technologies

India . 23 parts In-Stock

1+ parts

$6.827

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23

$6.827

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DigiPath Technology Company

USA . 23 parts In-Stock

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$6.827

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23

$6.827

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Parana Technologies

USA . 2,236 parts In-Stock

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$4.341

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2,236

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$4.341

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Corphita

USA . 1,022 parts In-Stock

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1,022

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Overview

Elevate your designs with the L4946B from STMicroelectronics, a trusted leader in innovative semiconductor solutions. This versatile multiple-output LDO regulator delivers stable performance with minimal voltage drop, ensuring efficiency and reliability in various applications—from consumer electronics to industrial systems. With robust thermal management and a compact design, it’s the perfect choice for engineers seeking quality and value without compromise. Embrace excellence with STMicroelectronics!

Feature Benefit Bullets

Package Body Material: PLASTIC/EPOXY

Durable construction ensures reliable performance and longevity in various applications.

Maximum Dropout Voltage-2: 0.6 V

Low dropout voltage allows for efficient operation and better regulation of output voltage.

Maximum Dropout Voltage-1: 0.6 V

Similar to Dropout Voltage-2, enhances energy efficiency in power conversion.

Operating Temperature (TJ-Max): 150 °C

High thermal limit supports usage in demanding environments without risk of failure.

Minimum Output Voltage-2: 7.6 V

Offers flexibility for applications requiring different voltage levels.

Technology: BCD

Utilizes advanced BCD technology, optimizing performance and reducing chip area.

Nominal Output Voltage-2: 8 V

Consistent output voltage ensures stable performance in critical applications.

Package Shape: RECTANGULAR

Space-efficient design aids in board layout and integration into various systems.

Terminal Form: THROUGH-HOLE

Reliable mounting style promotes stability and ease of soldering in assembly.

Minimum Output Voltage-1: 9.5 V

Provides additional options for devices requiring higher output voltage.

Maximum Voltage Tolerance: 5 %

Enhances reliability by allowing for minor voltage fluctuations without failure.

Nominal Output Voltage-1: 10 V

Delivers a steady output voltage critical for many electronic applications.

No. of Terminals: 11

Multiple terminals facilitate various connections and configurations.

Package Style (Meter): FLANGE MOUNT

Flange mount design simplifies installation and enhances mechanical stability.

Adjustability: FIXED

Provides set output levels, ensuring consistent voltage without the need for additional components.

Maximum Operating Temperature: 85 °C

Suitable for a wide range of applications, maintaining performance in warmer conditions.

Terminal Pitch: 1.7 mm

Allows for compact design while maintaining compatibility with standard PCB layouts.

Maximum Line Regulation: 0.05 %

Exceptional line regulation minimizes output voltage changes due to input fluctuations.

Minimum Operating Temperature: -40 °C

Ensures reliable performance in extremely cold environments.

Regulator Type: FIXED POSITIVE MULTIPLE OUTPUT LDO REGULATOR

Specialized for consistent multi-output applications, catering to diverse power needs.

Terminal Finish: TIN LEAD

Standard finish ensures compatibility with most soldering processes in production.

Terminal Position: ZIG-ZAG

Optimizes layout possibilities on the PCB, enhancing design flexibility.

Maximum Output Voltage-1: 10.5 V

Supports higher demands for voltage, making it suitable for various loads.

Maximum Load Regulation: 0.15 %

Maintains voltage stability under varying load conditions, critical for sensitive electronics.

Maximum Output Voltage-2: 8.4 V

Provides a robust power supply option for multiple devices and applications.

Minimum Input Voltage: 10.5 V

Sets a practical lower limit for operation, ensuring efficient voltage management.

Maximum Input Voltage: 16 V

Provides headroom for safe operation and protects against over-voltage scenarios.

Maximum Input Voltage Absolute: 26.5 V

Offers additional protection, extending the range for input voltage variations.

Maximum Output Current-1: 0.125 A

Suitable for low to moderate current loads, ideal for various electronic applications.

No. of Outputs: 4

Versatile design enables powering multiple components from a single regulator.

Maximum Output Current-2: 0.25 A

Allows for higher current draw in specific applications, enhancing overall capability.

Technical Specifications

Fixed Regulators - Positive Multiple Output LDO L4946B attributes and parameters. Explore more Fixed Regulators - Positive Multiple Output LDO devices from STMicroelectronics

Specs

Adjustability:

FIXED

Maximum Dropout Voltage-1:

.6 V

Maximum Dropout Voltage-2:

.6 V

Maximum Input Voltage Absolute:

Maximum Input Voltage:

16 V

Minimum Input Voltage:

10.5 V

JESD-30 Code:

R-PZFM-T11

JESD-609 Code:

e0

Maximum Line Regulation:

.05 %

Maximum Load Regulation:

.15 %

No. of Functions:

1

No. of Outputs:

4

No. of Terminals:

11

Operating Temperature (TJ-Max):

150 Cel

Maximum Operating Temperature:

85 Cel

Minimum Operating Temperature:

-40 Cel

Maximum Output Current-1:

.125 A

Maximum Output Current-2:

.25 A

Maximum Output Voltage-1:

10.5 V

Minimum Output Voltage-1:

9.5 V

Nominal Output Voltage-1:

10 V

Maximum Output Voltage-2:

8.4 V

Minimum Output Voltage-2:

7.6 V

Nominal Output Voltage-2:

8 V

Package Body Material:

PLASTIC/EPOXY

Package Code:

ZIP

Package Equivalence Code:

ZIP11,.2,.17,67TB

Package Shape:

RECTANGULAR

Package Style (Meter):

FLANGE MOUNT

Qualification Status:

Not Qualified

Sub-Category:

Other Regulators

Surface Mount:

NO

Technology:

BCD

Terminal Finish:

TIN LEAD

Terminal Form:

Terminal Pitch:

1.7 mm

Terminal Position:

ZIG-ZAG

Maximum Voltage Tolerance:

5 %

Trade Compliance

L4946B 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

Category top products 20

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