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A4491EESTR-T The Allegro MicroSystems A4491EESTR-T is a step-down DC-DC switching regulator. It offers adjustable triple positive outputs and operates at 550kHz.
Mfr Part #:

A4491EESTR-T

Available from 3 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The Allegro MicroSystems A4491EESTR-T is a step-down DC-DC switching regulator. It offers adjustable triple positive outputs and operates at 550kHz.
✓ Total Stock: 29,582 pcs
$ Price Range: $0.16

A4491EESTR-T Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
22,554 pcs
On Request
22554 pcs On Request 1 On Request On Request 15+14+ On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
4,578 pcs
On Request
4578 pcs On Request 1 On Request On Request 21+ On Request On Request
Seba Components ✓
Non-Authorised Inventory information
2,450 pcs
On Request
2450 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

A4491EESTR-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
Voltage Supply
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A4491EESTR-T Description

Short technical summary and product information.

The Allegro MicroSystems A4491EESTR-T is a versatile step-down DC-DC switching regulator designed for various power management applications. This component features an adjustable output configuration with three positive outputs, operating from a 4.5V supply voltage.

 

With a switching frequency of 550kHz, the A4491EESTR-T provides efficient power conversion. It is designed to operate within an ambient temperature range of -40°C to 85°C, making it suitable for a wide array of environmental conditions. The regulator is built with a non-synchronous buck topology.

 

This device is available in a 20-QFN Exposed Pad package, specifically a 20-WFQFN Exposed Pad (4x4mm), and is designed for surface mount installation. Its RoHS3 Compliant status indicates adherence to environmental regulations, with an MSL rating of 1 (Unlimited) and REACH Unaffected status.

 

The A4491EESTR-T is a reliable choice for engineers seeking a compact and efficient solution for DC-DC power conversion needs.

A4491EESTR-T Quick Information

Product Type: DC-DC Switching Regulator
Canonical Name: A4491EESTR-T Adjustable Triple Output Step-Down Buck DC-DC Switching Regulator
Subcategory: DC-DC Switching Regulator

A4491EESTR-T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

A4491EESTR-T Estimated Pricing

Qty Low High
1+ $0.16 $0.16

Estimated market price range - modelled values for guidance only, not live distributor offers.

A4491EESTR-T Features

  • Step-down DC-DC switching regulator.
  • Adjustable triple positive outputs.
  • Operates at 4.5V supply voltage.
  • Wide -40°C to 85°C temperature range.
  • Surface mount 20-QFN-EP package.

A4491EESTR-T Applications

  • Suitable for general power regulation.
  • Used in compact electronic devices.
  • Ideal for applications requiring multiple outputs.
  • Designed for wide temperature environments.

A4491EESTR-T FAQs

6 frequently asked questions generated from this part’s specifications.
What is the supply voltage for the A4491EESTR-T?

The supply voltage is 4.5V.

What is the operating temperature range for this component?

The operating temperature range is -40°C to 85°C.

What is the switching frequency of the A4491EESTR-T?

The switching frequency is 550kHz.

How many outputs does the A4491EESTR-T have?

It has 3 outputs.

What type of package is the A4491EESTR-T in?

It is in a 20-WFQFN Exposed Pad package.

Is the A4491EESTR-T RoHS compliant?

Yes, it is RoHS3 Compliant.

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