Name: L7981A
Brand: STMicroelectronics
SKU: L7981A
Price: 1.9994 USD
Availability: InStock
Rating: 5 (125 reviews)

L7981A

For Reference Only

Part Number	L7981A
Manufacturer	STMicroelectronics
Description	IC REG BUCK ADJ 3A 8HSOP
Datasheet	L7981A Datasheet L7981A Specifications
Package	8-SOIC (0.154", 3.90mm Width) Exposed Pad
ECAD
In Stock	22,320 piece(s)
Unit Price	$ 1.9994 *
Lead Time	Can Ship Immediately
Estimated Delivery Time	Jun 8 - Jun 13 (Choose Expedited Shipping)
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Part Number # L7981A (PMIC - Voltage Regulators - DC DC Switching Regulators) is manufactured by STMicroelectronics and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For L7981A specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add L7981A with quantity into BOM. Heisener.com does NOT require any registration to request a quote of L7981A.

L7981A Specifications

Manufacturer	STMicroelectronics
Category	Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Regulators
Package	8-SOIC (0.154", 3.90mm Width) Exposed Pad
ECAD
Series	-
Function	Step-Down
Output Configuration	Positive
Topology	Buck
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	4.5V
Voltage - Input (Max)	28V
Voltage - Output (Min/Fixed)	0.6V
Voltage - Output (Max)	28V
Current - Output	3A
Frequency - Switching	250kHz ~ 1MHz
Synchronous Rectifier	No
Operating Temperature	-40°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Supplier Device Package	8-HSOP Exposed Pad

L7981A Datasheet

L7981A Reviews

Aaliy*****rnett

April 6, 2023

★ ★ ★ ★ ★

On time and as described, fast delivery. Would definitely buy again. Thx.

Tat*****ayar

March 20, 2023

★ ★ ★ ★ ★

Works great with an older drive in a newer computer.have not encountered any problems, Glad somebody is making these for all the older equipment.

Dori*****eith

March 18, 2023

★ ★ ★ ★ ★

Comparison with other company, Heisener is my first choice for supplier.

Ephra*****varado

March 17, 2023

★ ★ ★ ★ ★

I enjoy doing business with Heisener, please keep up the GREAT Service!

Gian*****grawal

March 13, 2023

★ ★ ★ ★ ★

Good quality, buy back and then use, with the newly bought hard disk, very stable, at any time you can check things, not occupy space, very convenient.

Write a Review

★★★★★

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Thanks for Your Review!

L7981A Packaging

L7981A FAQ

1. How to order L7981A on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that L7981A is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the L7981A. All suppliers must pass our qualification reviews before they can publish their products including L7981A on Heisener; we pay more attention to the channels and quality of L7981A products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the L7981A price and inventory displayed accurate?

The price and inventory of L7981A fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of L7981A?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the L7981A we delivered, we will accept the replacement or return of the L7981A only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of L7981A.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as L7981A pin diagram, L7981A datasheet?

If you need any after-sales service, please do not hesitate to contact us.

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L7981A Guarantees

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number

Manufacturer

Description

Stock

L7981A

D# E02:0323_03155625

STMicroelectronics

Conv DC-DC 4.5V to 28V Synchronous Step Down Single-Out 0.6V to 28V 3A 8-Pin HSOP EP Tube

RoHS: Compliant

L7981ATR

D# E02:0323_03155706

STMicroelectronics

Conv DC-DC 4.5V to 28V Synchronous Step Down Single-Out 0.6V to 28V 3A 8-Pin HSOP EP T/R

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

L7981ATR

D# L7981ATR

STMicroelectronics

Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP T/R - Tape and Reel (Alt: L7981ATR)

L7981A

D# L7981A

STMicroelectronics

Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP Tube - Rail/Tube (Alt: L7981A)

Part Number

Manufacturer

Description

Stock

L7981ATR

D# L7981ATR

STMicroelectronics

Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP T/R (Alt: L7981ATR)

Part Number

Manufacturer

Description

Stock

L7981ATR

D# L7981ATR

STMicroelectronics

Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP T/R (Alt: L7981ATR)

L7981A

D# L7981A

STMicroelectronics

Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP Tube (Alt: L7981A)

Part Number

Manufacturer

Description

Stock

L7981ATR

STMicroelectronics

Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP T/R

1828

L7981A

STMicroelectronics

BUCK, 4.5-28V, 3A, 1MHZ, 0.6-28V, 8HSOP

149

Part Number

Manufacturer

Description

Stock

L7981ATR

STMicroelectronics

28V 3A SOIC-8_EP_150mil DC-DC Converters RoHS

4063

Part Number

Manufacturer

Description

Stock

L7981ATR

D# 497-10722-1-ND

STMicroelectronics

IC REG BUCK ADJUSTABLE 3A 8HSOP

15911

L7981A

D# 497-16177-5-ND

STMicroelectronics

IC REG BUCK ADJUSTABLE 3A 8HSOP

1528

Part Number

Manufacturer

Description

Stock

L7981ATR

STMicroelectronics

In stock shipping within 2days

343

Part Number

Manufacturer

Description

Stock

L7981ATR

D# 2806920RL

STMicroelectronics

DC/DC CONV, BUCK, 250KHZ, HSOP-8

RoHS: Compliant

Min Qty: 1

Container: Reel

L7981A

D# 2311339

STMicroelectronics

VOLTAGE REG, BUCK, 3A, 1MHZ, HSOP-8

RoHS: Compliant

Min Qty: 1

Container: Each

139

Part Number

Manufacturer

Description

Stock

L7981ATR

STMicroelectronics

L7981 Series 28 V 3 A 1 MHz Step Down Switching Regulator SMT - HSOP-8

RoHS: Compliant

pbFree: Yes

L7981A

STMicroelectronics

3 A step-down switching regulator

RoHS: Compliant

pbFree: Yes

Part Number

Manufacturer

Description

Stock

L7981ATR

STMICROELECTRONICS

OEM/CM QUOTES ONLY | NO BROKERS

5800

L7981A

STMICROELECTRONICS

OEM/CM QUOTES ONLY | NO BROKERS

1772

Part Number

Manufacturer

Description

Stock

L7981A

Linear Technology

OEM/CM ONLY

729

Part Number

Manufacturer

Description

Stock

L7981ATR

STMicroelectronics

OEM/CM Immediate delivery

30000

Part Number

Manufacturer

Description

Stock

L7981A

D# 511-L7981A

STMicroelectronics

Switching Voltage Regulators 3A Step-Down Reg 3.7A 4.5 to 28V 1MHz

RoHS: Compliant

2802

L7981ATR

D# 511-L7981ATR

STMicroelectronics

Switching Voltage Regulators 3 A Step-Down Reg 4.5V to 28V 250 kHz

RoHS: Compliant

7138

Part Number

Manufacturer

Description

Stock

L7981A

D# XSKDRABV0039695

STMicroelectronics

3 A step-down switching regulator

600

L7981ATR

D# XSFT00000040848

STMicroelectronics

2500

Part Number

Manufacturer

Description

Stock

L7981ATR

D# 45AC7276

STMicroelectronics

DC/DC CONV, BUCK, 250KHZ, HSOP-8, Topology:Buck (Step Down), Input Voltage Min:4.5V, Input Voltage Max:28V, No. of Outputs:1Outputs, DC / DC Converter IC Case:HSOP, No. of Pins:8Pins, Output Current:3A, Output Voltage Min:600mV RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

103

L7981A

D# 86W0519

STMicroelectronics

DC-DC Switching Buck (Step Down) Regulator, Adjustable, 4.5V-28Vin, 600mV-28Vout, 3Aout, HSOP-8 RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Bulk

139

Part Number

Manufacturer

Description

Stock

L7981ATR

D# NS-L7981ATR

STMicroelectronics

OEM/CM ONLY

9179

L7981A

D# NS-L7981A

STMicroelectronics

OEM/CM ONLY

2477

Part Number

Manufacturer

Description

Stock

L7981A

STMicroelectronics

OEM/CM ONLY

1762

L7981ATR

STMicroelectronics

OEM/CM ONLY

316

Part Number

Manufacturer

Description

Stock

L7981ATR

STMicroelectronics

IN stock Immediate delivery

29985

Part Number

Manufacturer

Description

Stock

L7981ATR

STMicroelectronics

shipping today

896

Part Number

Manufacturer

Description

Stock

L7981ATR

D# 52958567

STMicroelectronics

Conv DC-DC 4.5V to 28V Synchronous Step Down Single-Out 0.6V to 28V 3A 8-Pin HSOP EP T/R

RoHS: Compliant

L7981A

D# 53124905

STMicroelectronics

Conv DC-DC 4.5V to 28V Synchronous Step Down Single-Out 0.6V to 28V 3A 8-Pin HSOP EP Tube

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

L7981A

STMicroelectronics

3 A step-down switching regulator

3640

L7981ATR

STMicroelectronics

IC REG BUCK ADJ 3A 8HSOP

870

Part Number

Manufacturer

Description

Stock

L7981ATR

D# 2806920

STMicroelectronics

DC/DC CONV, BUCK, 250KHZ, HSOP-8

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

7501

L7981A

D# 2311339

STMicroelectronics

VOLTAGE REG, BUCK, 3A, 1MHZ, HSOP-8

RoHS: Compliant

Min Qty: 1

Container: Each

139

Quick Inquiry

L7981A

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