TPS54427DDA The Texas Instruments TPS54427DDA is a synchronous step-down converter with an input voltage range of 4.5V to 18V and a maximum output current of 4A. It features an adjustable output voltage and a 650kHz switching frequency.
Mfr Part #:

TPS54427DDA

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPS54427DDA is a synchronous step-down converter with an input voltage range of 4.5V to 18V and a maximum output current of 4A. It features an adjustable output voltage and a 650kHz switching frequency.
✓ Total Stock: 855 pcs
$ Price Range: $0.75

TPS54427DDA Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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855 pcs
855 pcs On Request 1 On Request On Request 10+ On Request On Request

TPS54427DDA Specifications Quick View

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

TPS54427DDA Description

Short technical summary and product information.

The Texas Instruments TPS54427DDA is a synchronous buck converter designed for power management applications. It operates with an input voltage range from 4.5V to 18V and can deliver up to 4A of output current. The output voltage is adjustable, providing flexibility for various design requirements.

 

Key electrical specifications include a switching frequency of 650kHz and a typical quiescent current of 0.95mA. The device features integrated FETs with low on-resistance (70 mΩ high-side, 53 mΩ low-side) for high efficiency. It also offers a shutdown current of less than 10µA.

 

Packaged in an 8-SO PowerPad (8-PowerSOIC) surface-mount configuration, the TPS54427DDA is suitable for space-constrained designs. Its operating temperature range is -40°C to 85°C (TA).

 

This converter utilizes D-CAP2™ mode for fast transient response and low output ripple, allowing the use of ceramic output capacitors. It is designed to enable cost-effective power bus regulation in various end equipment.

TPS54427DDA Quick Information

Product Type: DC DC Switching Regulator
Canonical Name: Texas Instruments TPS54427DDA Synchronous Step-Down Converter
Subcategory: Voltage Regulators

TPS54427DDA Compliance

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

TPS54427DDA Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

TPS54427DDA Features

  • Synchronous step-down converter with 4A output.
  • Wide input voltage range: 4.5V to 18V.
  • Adjustable output voltage capability.
  • 650kHz switching frequency.
  • 8-SO PowerPad surface mount package.

TPS54427DDA Applications

  • Cost-effective power bus regulation.
  • Enables fast transient response.
  • Suitable for low output ripple designs.
  • Optimized for lower duty cycle applications.

TPS54427DDA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the TPS54427DDA?

The input voltage range is 4.5V to 18V.

What is the output voltage range of the TPS54427DDA?

The output voltage is adjustable from 0.76V to 7V.

What is the maximum output current?

The maximum output current is 4A.

What is the switching frequency of the TPS54427DDA?

The switching frequency is 650 kHz.

What is the operating temperature range?

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

What package is the TPS54427DDA available in?

It is available in 8-SO PowerPad and 8-PowerSOIC packages.

What is the mounting style of the TPS54427DDA?

It is surface mount.

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