TPS54540-Q1 The Texas Instruments TPS54540-Q1 is a 42V, 5A step-down DC-DC converter featuring an integrated high-side MOSFET and Eco-mode™ for high efficiency at light loads. It operates over a wide input voltage range and offers adjustable switching frequency.
Mfr Part #:

TPS54540-Q1

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPS54540-Q1 is a 42V, 5A step-down DC-DC converter featuring an integrated high-side MOSFET and Eco-mode™ for high efficiency at light loads. It operates over a wide input voltage range and offers adjustable switching frequency.
✓ Total Stock: 42,541 pcs
$ Price Range: $1.08

TPS54540-Q1 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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42,541 pcs
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TPS54540-Q1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
SVHC Present

TPS54540-Q1 Description

Short technical summary and product information.

The TPS54540-Q1 from Texas Instruments is a 42-V, 5-A step-down DC-DC converter designed for automotive applications. It features an integrated high-side MOSFET and supports load-dump pulses up to 65 V. The device utilizes current mode control for simple external compensation and flexible component selection.

 

Key features include high efficiency at light loads with pulse-skipping Eco-mode™, a low operating quiescent current of 146 μA, and a shutdown current of 2 μA. The switching frequency is adjustable from 100 kHz to 2.5 MHz, allowing optimization for efficiency or component size. It also synchronizes to an external clock.

 

The TPS54540-Q1 includes protection features such as frequency foldback and thermal shutdown to safeguard internal and external components during overload conditions. It is available in an 8-pin thermally enhanced HSOP PowerPAD™ package, suitable for surface mounting.

 

This device is AEC-Q100 qualified with Device Temperature Grade 1 (-40°C to 125°C ambient operating temperature range) and specific HBM and CDM ESD classifications. It is supported by WEBENCH® Software Tool.

TPS54540-Q1 Quick Information

Product Type: DC-DC Switching Regulator
Series: TPS54540-Q1
Canonical Name: Texas Instruments TPS54540-Q1 42V 5A Step-Down DC-DC Converter with Eco-mode™
Subcategory: Step-Down

TPS54540-Q1 Compliance

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

TPS54540-Q1 Estimated Pricing

Qty Low High
1+ $1.08 $1.08

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

TPS54540-Q1 Features

  • 42V, 5A step-down DC-DC converter.
  • Integrated high-side MOSFET.
  • High efficiency with Eco-mode™.
  • Adjustable switching frequency up to 2.5 MHz.
  • AEC-Q100 qualified for automotive.

TPS54540-Q1 Applications

  • Automotive vehicle accessories.
  • USB charging ports and battery chargers.
  • Industrial automation and motor control.
  • 12V, 24V, and 48V power systems.

TPS54540-Q1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the TPS54540-Q1?

4.5V to 42V.

What is the output voltage range?

0.8V to 41.1V.

What is the maximum output current?

5A.

What switching frequency does the TPS54540-Q1 support?

An adjustable range from 100kHz to 2.5MHz.

What is the operating temperature range?

-40°C to 125°C.

What is the operating quiescent current?

146µA typical.

What package is the TPS54540-Q1 available in?

HSOP surface-mount package, body size 4.89mm × 3.90mm.

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