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A4402ELPTR-T The Allegro Microsystems A4402ELPTR-T is a dual-output regulator combining a constant on-time buck regulator and a linear regulator (LDO). It operates with adjustable output voltages and a switching frequency of 2 MHz.
Mfr Part #:

A4402ELPTR-T

Available from 1 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The Allegro Microsystems A4402ELPTR-T is a dual-output regulator combining a constant on-time buck regulator and a linear regulator (LDO). It operates with adjustable output voltages and a switching frequency of 2 MHz.
✓ Total Stock: 2,337 pcs
$ Price Range: $0.30

A4402ELPTR-T Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,337 pcs
On Request
2337 pcs On Request 1 On Request On Request 1914+ On Request On Request
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A4402ELPTR-T Specifications Quick View

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A4402ELPTR-T Description

Short technical summary and product information.

The A4402ELPTR-T from Allegro Microsystems is a versatile dual-output regulator designed for applications requiring two regulated voltages, such as microcontroller or DSP-based systems. It integrates a constant on-time buck regulator and an adjustable linear regulator (LDO) in a single 16-pin eTSSOP package with an exposed pad for enhanced thermal dissipation.

 

This device features adjustable output voltages for both the buck and linear regulators, with the buck output supplying the LDO to improve efficiency and reduce power dissipation. The switching regulator operates above 2 MHz, enabling the use of small external components and avoiding sensitive EMI bands. Protection features include undervoltage lockout (UVLO), thermal shutdown, and overcurrent protection for each regulator.

 

Additional functionalities include an integrated power-on reset with adjustable delay and a watchdog circuit, making it suitable for complex embedded systems. The A4402ELPTR-T is surface-mounted and operates within a temperature range of -40°C to 85°C.

 

Applications include automotive systems like power steering and transmission control units, as well as commercial applications such as printers, industrial controls, and networking equipment.

A4402ELPTR-T Quick Information

Product Type: Voltage Regulator
Canonical Name: A4402 Constant On-Time Buck Converter with Integrated Linear Regulator
Subcategory: Linear + Switching

A4402ELPTR-T Compliance

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

A4402ELPTR-T Estimated Pricing

Qty Low High
1+ $0.30 $0.30

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

A4402ELPTR-T Features

  • Dual output: buck converter and LDO.
  • 2 MHz switching frequency for compact design.
  • Input voltage range 6 V to 50 V.
  • Output voltage adjustable 1.8 V to 3.3 V.
  • Surface mount 16-TSSOP package with exposed pad.

A4402ELPTR-T Applications

  • Ideal for automotive power supply designs.
  • Used in industrial control systems.
  • Suitable for battery-powered equipment.
  • Provides regulated voltages for mixed-signal circuits.

A4402ELPTR-T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the A4402ELPTR-T?

6 V to 50 V.

What is the output voltage range?

1.8 V to 3.3 V.

What is the switching frequency?

2 MHz.

What is the operating temperature range?

-40°C to 85°C.

What package does the A4402ELPTR-T come in?

16-TSSOP (0.173", 4.40mm Width) Exposed Pad.

How many outputs does it have?

2 outputs: one step-down buck and one linear LDO.

What is the output current capability?

250 mA.

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