A4491EESTR-T - Allegro MicroSystems, LLC - Price, Inventory & Datasheets | Heisener.com
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A4491EESTR-T

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A4491EESTR-T

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Part Number

A4491EESTR-T

Description

IC REG BUCK ADJ TRPL 20QFN

Package

20-WFQFN Exposed Pad

ECAD

In Stock

16,764 piece(s)

Unit Price

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Lead Time

Can Ship Immediately

Estimated Delivery Time

Dec 29 - Jan 3 ( Choose Expedited Shipping)

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Payment Methods
Delivery Services

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A4491EESTR-T

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Certified Quality

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Heisener's commitment to quality has shaped our processes for sourcing, testing, shipping, and every step in between. This foundation underlies each component we sell.

ISO 9001 ISO 14001 DUNS Registered Award 1 Award 3 Award 5 Award 4 Special Dealer Enterprises Reference 1 Reference 2 Nation Certificate
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Do you have any question about A4491EESTR-T?

Part Number # A4491EESTR-T (PMIC - Voltage Regulators - DC DC Switching Regulators) is manufactured by Allegro MicroSystems, LLCand 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 A4491EESTR-Tspecifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add A4491EESTR-T with quantity into BOM. Heisener.com does NOT require any registration to request a quote of A4491EESTR-T.

A4491EESTR-T Specifications

Manufacturer Allegro MicroSystems, LLC
Category Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Regulators
Package 20-WFQFN Exposed Pad
ECAD Technical cover
Series -
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 3
Voltage - Input (Min) 4.5V
Voltage - Input (Max) 23V
Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 20.7V
Current - Output -
Frequency - Switching 550kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 20-WFQFN Exposed Pad
Supplier Device Package 20-QFN (4x4)

A4491EESTR-T Reviews

Nov*****ayal

March 17, 2023

All items individually packed in anti static bags and properly labeled.

Tony*****illan

March 3, 2023

Well packed in anti-static bags. Repaired my amp perfectly - thank you!

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A4491EESTR-T FAQ

1. How to order A4491EESTR-T 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 A4491EESTR-T is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test theA4491EESTR-T. All suppliers must pass our qualification reviews before they can publish their products including A4491EESTR-T on Heisener;we pay more attention to the channels and quality of A4491EESTR-Tproducts than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the A4491EESTR-T price and inventory displayed accurate?

The price and inventory of A4491EESTR-T 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 A4491EESTR-T?

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 A4491EESTR-T we delivered, we will accept the replacement or return of the A4491EESTR-T 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 ofA4491EESTR-T.
(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 A4491EESTR-T pin diagram, A4491EESTR-T datasheet?

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

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A4491EESTR-T Guarantees

Service Guarantee

Service Guarantees

We guarantee 100% customer satisfaction.

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

Quality Guarantee

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.

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Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number Manufacturer Description Stock

A4491EESTR-T

D# V79:2366_17788111

Allegro MicroSystems LLC

Conv DC-DC 4.5V to 23V Step Down Single-Out 4.5A 20-Pin QFN EP T/R

RoHS: Compliant
0
Part Number Manufacturer Description Stock

A4491EESTR-T

D# A4491EESTR-T

Allegro MicroSystems LLC

Conv DC-DC 3-OUT Step Down 4.5V to 23V 20-Pin QFN T/R (Alt: A4491EESTR-T)

0
Part Number Manufacturer Description Stock

A4491EESTR-T

Allegro MicroSystems LLC

IC REG BUCK ADJ TRPL 20QFN

18000
Part Number Manufacturer Description Stock

A4491EESTR-T

D# 2156-A4491EESTR-T-ND

Rochester Electronics LLC

TRIPLE OUTPUT STEP DOWN SWITCHIN

47600
Part Number Manufacturer Description Stock

A4491EESTR-T

Allegro MicroSystems LLC

In stock shipping within 2days

19182
Part Number Manufacturer Description Stock

A4491EESTRT

Allegro MicroSystems LLC

OEM/CM QUOTES ONLY | NO BROKERS

2071
Part Number Manufacturer Description Stock

A4491EESTR-T

Allegro MicroSystems LLC

OEM/CM Immediate delivery

23422
Part Number Manufacturer Description Stock

A4491EESTR-T

D# XSKDRABS0061390

Allegro MicroSystems LLC

TRIPLE OUTPUT STEP DOWN SWITCHING REGULATOR

5996
Part Number Manufacturer Description Stock

A4491EESTR-T

Allegro MicroSystems LLC

SWITCHING REGULATOR, CURRENT-MODE, 1.5A, 630KHZ SWITCHING FREQ-MAX

1200
Part Number Manufacturer Description Stock

A4491EESTR-T

Allegro MicroSystems LLC

A4491 - Triple Output Step Down Switching Regulator

RoHS: Compliant
47600
Part Number Manufacturer Description Stock

A4491EESTRT

Allegro MicroSystems LLC

OEM/CM ONLY

19394
Part Number Manufacturer Description Stock

A4491EESTR-T

Allegro MicroSystems LLC

IN stock Immediate delivery

23407
Part Number Manufacturer Description Stock

A4491EESTR-T

Allegro MicroSystems LLC

shipping today

585
Part Number Manufacturer Description Stock

A4491EESTR-T

D# 26115925

Allegro MicroSystems LLC

Conv DC-DC 4.5V to 23V Step Down Single-Out 4.5A 20-Pin QFN EP T/R

RoHS: Compliant
0
Part Number Manufacturer Description Stock

A4491EESTR-T

Allegro MicroSystems LLC

IC REG BUCK ADJ TRPL 20QFN

870

A4491EESTR-T Tags

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