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TPS628681ARQYR The Texas Instruments TPS628681ARQYR is a 5.5-V, 4-A synchronous step-down DC/DC converter. It features an I²C interface for control and configuration.
Mfr Part #:

TPS628681ARQYR

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPS628681ARQYR is a 5.5-V, 4-A synchronous step-down DC/DC converter. It features an I²C interface for control and configuration.
✓ Total Stock: 7,030 pcs
$ Price Range: $0.86

TPS628681ARQYR Available from 1 distributor

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✓ Non-Authorised
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Xingangxin ✓
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7,030 pcs
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7030 pcs On Request 1 On Request On Request On Request On Request On Request
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TPS628681ARQYR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Efficiency
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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TPS628681ARQYR Description

Short technical summary and product information.

The Texas Instruments TPS628681ARQYR is a high-frequency synchronous step-down converter designed for efficient, adaptive, and high power-density solutions. It operates with an input voltage range of 2.4 V to 5.5 V and can deliver up to 4 A of output current.

 

Key electrical specifications include a 2.4-MHz switching frequency and internal power MOSFETs with low on-resistance (11 mΩ and 10.5 mΩ). The device offers high efficiency, exceeding 90% at a 0.9-V output. It supports dynamic voltage scaling (DVS) through an I²C interface, allowing for precise output voltage adjustments in small steps.

 

The converter is housed in a compact 1.5-mm x 2.5-mm 9-pin QFN package, suitable for space-constrained applications. It features surface mount technology for easy integration into PCBs. The operating temperature range is -40°C to 125°C (TJ).

TPS628681ARQYR Quick Information

Product Type: DC DC Switching Regulator
Canonical Name: TPS62868 5.5-V 4-A Synchronous Step-Down Converter with I²C Interface
Subcategory: Step-Down

TPS628681ARQYR Compliance

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

TPS628681ARQYR Estimated Pricing

Qty Low High
1+ $0.86 $0.86

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

TPS628681ARQYR Features

  • Synchronous step-down converter with I²C interface.
  • Input voltage range from 2.4 V to 5.5 V.
  • Delivers up to 4 A of output current.
  • High efficiency exceeding 90% at 0.9 V output.
  • Compact 1.5 mm x 2.5 mm 9-pin QFN package.

TPS628681ARQYR Applications

  • Suitable for high power density designs.
  • Enables dynamic voltage scaling applications.
  • Ideal for space-constrained power solutions.
  • Used in systems requiring efficient voltage conversion.

TPS628681ARQYR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the TPS628681ARQYR?

2.4V to 5.5V.

What is the output current capability?

4A.

What is the switching frequency?

2.4MHz.

What is the operating temperature range?

-40°C to 125°C (junction).

What package is it available in?

9-VQFN-HR (1.5mm x 2.5mm).

How is the output voltage programmed?

Via I2C interface with adjustable step sizes (2.5mV, 5mV, 10mV).

What is the efficiency at 0.9V output?

Greater than 90%.

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