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LDS3985M18R

STMicroelectronics

LDS3985M18R by STMicroelectronics

LDS3985M18R by STMicroelectronics is a fixed positive LDO regulator with a nominal output voltage of 1.8 V and a max output current of 0.3 A. It operates efficiently in temperatures from -40 °C to 125 °C, featuring a low dropout voltage of just 0.15 V. Ideal for compact applications, it comes in a small outline package with gull-wing terminals for easy surface mounting.

Median Price

$0.453

Lifecycle Status

Suppliers In-Stock

19

In-Stock Inventory

1k+

Distributors (Authorized)

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

Rochester

USA . 4,035 parts In-Stock

1+ parts

$0.453

100+ parts

$0.426

1k+ parts

$0.385

10k+ parts

-

4,035

$0.453

$0.426

$0.385

-

Mouser Electronics

USA . 4,632 parts In-Stock

1+ parts

$0.670

100+ parts

$0.419

1k+ parts

$0.372

10k+ parts

$0.327

4,632

$0.670

$0.419

$0.372

$0.327

Newark

USA . 3,487 parts In-Stock

1+ parts

$0.690

100+ parts

$0.435

1k+ parts

$0.246

10k+ parts

-

3,487

$0.690

$0.435

$0.246

-

DigiKey

USA . 8,431 parts In-Stock

1+ parts

$0.850

100+ parts

$0.479

1k+ parts

$0.412

10k+ parts

$0.379

8,431

$0.850

$0.479

$0.412

$0.379

Element14

Singapore . 3,487 parts In-Stock

1+ parts

$0.867

100+ parts

$0.599

1k+ parts

$0.547

10k+ parts

$0.525

3,487

$0.867

$0.599

$0.547

$0.525

Avnet

USA . 30,000 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

-

30,000

-

-

-

-

Arrow

USA . 30,000 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

$0.272

30,000

-

-

-

$0.272

Verical

USA . 30,000 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

$0.272

30,000

-

-

-

$0.272

Chip1Stop

Japan . 6,000 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

$0.266

6,000

-

-

-

$0.266

Farnell

UK . 3,487 parts In-Stock

1+ parts

-

100+ parts

$0.351

1k+ parts

$0.320

10k+ parts

$0.290

3,487

-

$0.351

$0.320

$0.290

Distributors (In-Stock)

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

Vyrian

USA . 525 parts In-Stock

1+ parts

$0.266

100+ parts

-

1k+ parts

-

10k+ parts

-

525

$0.266

-

-

-

Digiode

USA . 2,339 parts In-Stock

1+ parts

$0.430

100+ parts

-

1k+ parts

-

10k+ parts

-

2,339

$0.430

-

-

-

Component Sense

UK . 21,795 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

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21,795

-

-

-

-

Inventory MP

USA . 13,784 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

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13,784

-

-

-

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Bristol Electronics

USA . 13,784 parts In-Stock

1+ parts

-

100+ parts

-

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-

10k+ parts

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13,784

-

-

-

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A&K Electronics

USA . 3,000 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

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3,000

-

-

-

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Rotakorn

Sweden . 3,000 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

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3,000

-

-

-

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Anansix

USA . 1,906 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

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10k+ parts

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1,906

-

-

-

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Prism Electronics

USA . 30 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

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30

-

-

-

-

Distributors (Availability)

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

Corphita

USA . 4,200 parts In-Stock

1+ parts

$0.408

100+ parts

-

1k+ parts

-

10k+ parts

-

4,200

$0.408

-

-

-

Continental Prestige Electronics

USA . 5,149 parts In-Stock

1+ parts

$0.552

100+ parts

$0.409

1k+ parts

$0.325

10k+ parts

$0.280

5,149

$0.552

$0.409

$0.325

$0.280

Vigor

Singapore . 164 parts In-Stock

1+ parts

$0.870

100+ parts

-

1k+ parts

-

10k+ parts

-

164

$0.870

-

-

-

Microchip USA

USA . 4,253 parts In-Stock

1+ parts

$3.098

100+ parts

-

1k+ parts

-

10k+ parts

-

4,253

$3.098

-

-

-

IDEA Electronic Components Group

UK . 557 parts In-Stock

1+ parts

$5.374

100+ parts

-

1k+ parts

$4.836

10k+ parts

-

557

$5.374

-

$4.836

-

MKK Technologies

India . 1,186 parts In-Stock

1+ parts

$10.105

100+ parts

-

1k+ parts

-

10k+ parts

-

1,186

$10.105

-

-

-

DigiPath Technology Company

USA . 1,186 parts In-Stock

1+ parts

$10.105

100+ parts

-

1k+ parts

-

10k+ parts

-

1,186

$10.105

-

-

-

Kepictronics

USA . 306,000 parts In-Stock

1+ parts

-

100+ parts

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306,000

-

-

-

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Metaverse IC Inc.

Canada . 90,000 parts In-Stock

1+ parts

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90,000

-

-

-

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QUARKTWIN TECHNOLOGY LTD

USA . 23,082 parts In-Stock

1+ parts

-

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23,082

-

-

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Perfect Parts

USA . 14,428 parts In-Stock

1+ parts

-

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14,428

-

-

-

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Authorized Procurement Solutions

USA . 3,000 parts In-Stock

1+ parts

-

100+ parts

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1k+ parts

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3,000

-

-

-

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Eastek

USA . 3,000 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

$0.300

10k+ parts

-

3,000

-

-

$0.300

-

GreenTree Electronics

Israel . 3,000 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

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3,000

-

-

-

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A-Z Elektronik GmbH

Germany . 2,034 parts In-Stock

1+ parts

-

100+ parts

-

1k+ parts

-

10k+ parts

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2,034

-

-

-

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Alle Elektronik GmbH

Germany . 1,356 parts In-Stock

1+ parts

-

100+ parts

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1k+ parts

-

10k+ parts

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1,356

-

-

-

-

Parana Technologies

USA . 358 parts In-Stock

1+ parts

-

100+ parts

$6.425

1k+ parts

-

10k+ parts

-

358

-

$6.425

-

-

Overview

Unlock exceptional performance with the LDS3985M18R from STMicroelectronics, a trusted leader in semiconductor solutions. This high-quality fixed LDO regulator ensures stable output with minimal dropout voltage, making it ideal for sensitive applications in consumer electronics, automotive systems, and industrial devices. Experience reliability, energy efficiency, and a compact design that simplifies integration, empowering your innovations to thrive. Choose STMicroelectronics and elevate your projects today!

Feature Benefit Bullets

Package Body Material: PLASTIC/EPOXY

The durable plastic/epoxy construction ensures reliable performance under various environmental conditions.

Maximum Dropout Voltage: 1.25 V

A low dropout voltage enhances efficiency by allowing the regulator to maintain output with a small input-output voltage differential.

Surface Mount: YES

Being surface mount compatible allows for space-saving designs, making it ideal for compact electronic devices.

Operating Temperature (TJ-Max): 125 °C

The high maximum operating temperature ensures that the regulator can function reliably in demanding environments.

Technology: BICMOS

BICMOS technology combines the advantages of bipolar and CMOS processes, offering high performance and low power consumption.

Package Shape: RECTANGULAR

The rectangular shape is optimal for layout flexibility on PCB designs.

Terminal Form: GULL WING

Gull wing terminals provide excellent solderability and mechanical stability.

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

With an extended operating temperature range, this product is suitable for use in extreme conditions.

Packing Method: TR

Tape and reel packaging facilitates automated assembly processes, enhancing production efficiency.

Minimum Output Voltage: 1.725 V

A minimum output voltage that is well-defined ensures reliable performance for sensitive loads.

Maximum Voltage Tolerance: 3 %

This tolerance level guarantees that the output voltage remains stable under varying load conditions.

Nominal Output Voltage: 1.8 V

1.8 V output is a common voltage level for many digital circuits, ensuring compatibility with various applications.

No. of Terminals: 5

With five terminals, this regulator offers sufficient connectivity for optimal functionality in low-profile designs.

Package Style (Meter): SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

The low-profile shrink pitch design is ideal for space-critical applications, supporting advanced miniaturization.

Adjustability: FIXED

A fixed output simplifies design efforts, requiring no additional components for voltage regulation.

Terminal Pitch: 0.95 mm

A smaller terminal pitch allows for compact PCB layouts, accommodating high-density designs.

Maximum Line Regulation: 0.0063 %

Exceptional line regulation ensures stable output voltage across variations in input voltage, enhancing performance reliability.

Regulator Type: FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

This type of regulator is ideal for providing clean, stable voltages needed in sensitive electronic applications.

Terminal Finish: NICKEL PALLADIUM GOLD

This premium terminal finish provides excellent conductivity and corrosion resistance, ensuring long-term reliability.

Terminal Position: DUAL

Dual terminal positioning allows for flexible mounting options, enhancing PCB layout versatility.

Maximum Output Voltage: 1.875 V

The maximum output voltage provides flexibility in designing circuits that require a slightly higher voltage level.

Maximum Seated Height: 1.45 mm

A compact seated height allows for low-profile designs, perfect for applications with height restrictions.

Width: 1.625 mm

A narrow width supports tighter PCB layout constraints, catering to modern design requirements.

Minimum Input Voltage: 2.5 V

This input voltage threshold makes it suitable for various battery-powered applications where low volts are available.

Maximum Output Current: 0.3 A

With a maximum output current of 300 mA, this regulator is suitable for powering moderate load devices.

Maximum Time At Peak Reflow Temperature (s): 30

30 seconds at peak reflow temperature indicates robust thermal performance for reliable soldering during assembly.

Peak Reflow Temperature °C: 260

A peak reflow temperature of 260 °C allows compatibility with modern high-temperature soldering processes.

Nominal Dropout Voltage: 0.15 V

A low nominal dropout voltage ensures high efficiency, optimizing battery life in portable applications.

Length: 2.9 mm

A compact length makes it suitable for small form factor designs, addressing space limitations in electronic devices.

Maximum Input Voltage: 6 V

This versatile input range supports a wide variety of power sources, enhancing application flexibility.

Maximum Input Voltage Absolute: 6 V

A defined maximum input voltage absolute ensures device protection against over-voltage conditions.

Technical Specifications

Fixed Regulators - Positive Single Output LDO LDS3985M18R attributes and parameters. Explore more Fixed Regulators - Positive Single Output LDO devices from STMicroelectronics

Specs

Adjustability:

FIXED

Maximum Dropout Voltage-1:

.25 V

Nominal Dropout Voltage-1:

.15 V

Maximum Input Voltage Absolute:

6 V

Maximum Input Voltage:

6 V

Minimum Input Voltage:

2.5 V

JESD-30 Code:

R-PDSO-G5

JESD-609 Code:

e4

Length:

2.9 mm

Maximum Line Regulation:

.0063 %

Moisture Sensitivity Level (MSL):

1

No. of Functions:

1

No. of Outputs:

1

No. of Terminals:

5

Operating Temperature (TJ-Max):

125 Cel

Operating Temperature (TJ-Min):

-40 Cel

Maximum Output Current-1:

.3 A

Maximum Output Voltage-1:

1.875 V

Minimum Output Voltage-1:

1.725 V

Nominal Output Voltage-1:

1.8 V

Package Body Material:

PLASTIC/EPOXY

Package Code:

Package Equivalence Code:

TSOP5/6,.11,37

Package Shape:

RECTANGULAR

Package Style (Meter):

SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

Packing Method:

TR

Peak Reflow Temperature (C):

260

Qualification Status:

Not Qualified

Maximum Seated Height:

1.45 mm

Sub-Category:

Other Regulators

Surface Mount:

YES

Technology:

BICMOS

Terminal Finish:

NICKEL PALLADIUM GOLD

Terminal Form:

Terminal Pitch:

.95 mm

Terminal Position:

DUAL

Maximum Time At Peak Reflow Temperature (s):

30

Maximum Voltage Tolerance:

3 %

Width:

1.625 mm

Trade Compliance

LDS3985M18R Regulators trade compliance attributes, and parameters.

ECCN

EAR99

ECCN Governance

EAR

HTS

8542.39.00.01

SB

8542.39.00.00

PCN

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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