Name: LT3991EMSE-5#PBF
Brand: Linear Technology
SKU: LT3991EMSE-5-PBF
Availability: InStock
Rating: 5 (109 reviews)

LT3991EMSE-5#PBF

For Reference Only

Part Number	LT3991EMSE-5#PBF
Manufacturer	Linear Technology
Description	IC REG BUCK 5V 1.2A 10-MSOP
Datasheet	LT3991EMSE-5#PBF Specifications
Package	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
ECAD
In Stock	20,856 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	May 19 - May 24 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # LT3991EMSE-5#PBF (PMIC - Voltage Regulators - DC DC Switching Regulators) is manufactured by Linear Technology 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 LT3991EMSE-5#PBF specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add LT3991EMSE-5#PBF with quantity into BOM. Heisener.com does NOT require any registration to request a quote of LT3991EMSE-5#PBF.

LT3991EMSE-5#PBF Specifications

Manufacturer	Linear Technology
Category	Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Regulators
Package	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
ECAD
Series	-
Function	Step-Down
Output Configuration	Positive
Topology	Buck
Output Type	Fixed
Number of Outputs	1
Voltage - Input (Min)	4.3V
Voltage - Input (Max)	55V
Voltage - Output (Min/Fixed)	5V
Voltage - Output (Max)	-
Current - Output	1.2A
Frequency - Switching	200kHz ~ 2MHz
Synchronous Rectifier	No
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount
Package / Case	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package	10-MSOP-EP

LT3991EMSE-5#PBF Reviews

Terr***** Berry

April 1, 2023

★ ★ ★ ★ ★

Everything is good. Well made terminal blocks. Good consistency and I found no bad ones in the bunch.

Uria*****owers

March 23, 2023

★ ★ ★ ★ ★

Those components that were in stock shipped fast and arrived promptly.

Mack*****nandez

March 15, 2023

★ ★ ★ ★ ★

Very fast reply, professional seller and received the correct parts.

Blaz*****vera

March 7, 2023

★ ★ ★ ★ ★

They are great as I need, I give 5 stars.

Dyl*****Bava

March 5, 2023

★ ★ ★ ★ ★

Items arrived well pakaged, reasonable postage and as described. Top seller

Jemma*****rwood

March 4, 2023

★ ★ ★ ★ ★

Super Fast Delivery & Well Packaged - Great Service - No Problems

Rave*****mahon

March 2, 2023

★ ★ ★ ★ ★

Absolutely the best source for wire, connectors, terminal strips, panel lights, etc. for model railroaders. Web site is the best in the business.

Sylv*****ital

February 24, 2023

★ ★ ★ ★ ★

EXACTLY what I was looking for -- one piece with a low forward voltage drop to isolate some DC power sources. They work fantastic!

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LT3991EMSE-5#PBF Packaging

LT3991EMSE-5#PBF FAQ

1. How to order LT3991EMSE-5#PBF 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 LT3991EMSE-5#PBF is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the LT3991EMSE-5#PBF. All suppliers must pass our qualification reviews before they can publish their products including LT3991EMSE-5#PBF on Heisener; we pay more attention to the channels and quality of LT3991EMSE-5#PBF products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the LT3991EMSE-5#PBF price and inventory displayed accurate?

The price and inventory of LT3991EMSE-5#PBF 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 LT3991EMSE-5#PBF?

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 LT3991EMSE-5#PBF we delivered, we will accept the replacement or return of the LT3991EMSE-5#PBF 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 LT3991EMSE-5#PBF.

(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 LT3991EMSE-5#PBF pin diagram, LT3991EMSE-5#PBF datasheet?

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

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LT3991EMSE-5#PBF 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

LT3991EMSE-5#PBF

D# V99:2348_06430339

Analog Devices Inc

Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 5V 1.2A Automotive 10-Pin MSOP EP Tube

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5#PBF

Linear Technology

BUCK, 55VIN, 1.2A, 2MHZ, 10MSOP

176

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5#PBF

D# C1S424500707496

Analog Devices Inc

Conv DC-DC 4.3V to 55V Step Down Single-Out 5V 1.2A Automotive 10-Pin MSOP EP T/R

RoHS: Compliant

pbFree: Yes

Min Qty: 1

Container: Bulk

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5#PBF

D# LT3991EMSE-5#PBF-ND

Analog Devices Inc

IC REG BUCK 5V 1.2A 10MSOP

1238

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5#PBF

Linear Technology

In stock shipping within 2days

4760

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5#PBF

D# 2115867

Linear Technology

BUCK, 55VIN, 1.2A, 2MHZ, 10MSOP

RoHS: Compliant

Min Qty: 1

Container: Each

Part Number

Manufacturer

Description

Stock

LT3991EMSE5PBFIH

Linear Technology

OEM/CM QUOTES ONLY | NO BROKERS

12750

LT3991EMSE5PBF

N/A

OEM/CM QUOTES ONLY | NO BROKERS

3678

Part Number

Manufacturer

Description

Stock

LT3991EMSE5PBFIH

Linear Technology

OEM/CM ONLY

1239

LT3991EMSE5PBF

Linear Technology

OEM/CM ONLY

177

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5#PBF

Linear Technology

in stock - can ship the same day

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5#PBF

D# 584-LT3991EMSE-5#PBF

Analog Devices Inc

Switching Voltage Regulators 55V, 1.2A, 2MHz Step-Down Regulator with 2.8uA Quiescent Current

RoHS: Compliant

328

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5#PBF

D# NS-LT3991EMSE-5#PBF

Linear Technology

OEM/CM ONLY

6945

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5#PBF

D# LT3991EMSE-5PBF

Analog Devices Inc

DC TO DC CONVERTER

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

LT3991EMSE5PBF/I/H

Linear Technology

OEM/CM ONLY

11002

LT3991EMSE5PBF

Linear Technology

OEM/CM ONLY

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5-PBF

Linear Technology

shipping today

296

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5#PBF

D# 35210988

Analog Devices Inc

Conv DC-DC 4.3V to 55V Synchronous Step Down Single-Out 5V 1.2A Automotive 10-Pin MSOP EP Tube

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

LT3991EMSE-5PBF

Linear Technology

RFQ

1994

LT3991EMSE-5#PBF

Linear Technology

RFQ

6204

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LT3991EMSE-5#PBF

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