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TPS54540QDDARQ1 The Texas Instruments TPS54540QDDARQ1 is a 5A step-down DC-DC converter with an adjustable output voltage. It features a wide input voltage range and operates in an 8-SO PowerPad package.
Mfr Part #:

TPS54540QDDARQ1

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPS54540QDDARQ1 is a 5A step-down DC-DC converter with an adjustable output voltage. It features a wide input voltage range and operates in an 8-SO PowerPad package.
✓ Total Stock: 36,840 pcs
$ Price Range: $3.41

TPS54540QDDARQ1 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
28,885 pcs
On Request
28885 pcs On Request 1 On Request On Request 21+ On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
6,000 pcs
On Request
6000 pcs On Request 1 On Request On Request 18+ On Request On Request
Rayichip ✓
Non-Authorised Inventory information
1,955 pcs
On Request
1955 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.

TPS54540QDDARQ1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Duty Cycle
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Output Voltage
Quiescent Current
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
Voltage Reference
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TPS54540QDDARQ1 Description

Short technical summary and product information.

The Texas Instruments TPS54540QDDARQ1 is a versatile step-down DC-DC converter designed for automotive applications. It supports an input voltage range from 4.5V to 42V and can deliver up to 5A of output current.

 

This device features an adjustable output voltage, adjustable switching frequency from 100kHz to 2.5MHz, and a typical quiescent current of 146µA. The integrated high-side MOSFET has a low resistance of 92mΩ. It operates within an ambient operating temperature range of -40°C to 125°C and a junction temperature range of -40°C to 150°C.

 

The TPS54540QDDARQ1 is housed in an 8-SO PowerPad package, suitable for surface mount applications. Its design includes features like Eco-mode™ for high efficiency at light loads, adjustable UVLO, and soft start.

 

This part is qualified for Automotive Applications and meets AEC-Q100 standards. However, it is noted as 'NOT RECOMMENDED FOR NEW DESIGNS', indicating it is available for existing customers but new designs should consider alternate products.

TPS54540QDDARQ1 Quick Information

Product Type: DC DC Switching Regulator
Canonical Name: Texas Instruments TPS54540QDDARQ1 Step-Down DC-DC Converter
Subcategory: Power Management ICs

TPS54540QDDARQ1 Compliance

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

TPS54540QDDARQ1 Estimated Pricing

Qty Low High
1+ $3.41 $3.41

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

TPS54540QDDARQ1 Features

  • Wide 4.5V to 42V input voltage range.
  • Delivers up to 5A output current.
  • Adjustable switching frequency up to 2.5MHz.
  • Low 92mΩ high-side MOSFET resistance.
  • Automotive qualified AEC-Q100.

TPS54540QDDARQ1 Applications

  • Step-down DC-DC power conversion.
  • Automotive power management systems.
  • Applications requiring adjustable output voltage.
  • Designs needing high efficiency at light loads.

TPS54540QDDARQ1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the TPS54540QDDARQ1?

4.5V to 42V.

What is the output current capability?

5A.

What is the switching frequency range?

100kHz to 2.5MHz.

What is the operating temperature range?

-40°C to 150°C (junction).

What package is the device available in?

8-SO PowerPad (8-PowerSOIC, 0.154" width).

What is the typical quiescent current?

146µA.

What is the maximum duty cycle?

98%.

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