TPS54140DGQR Part Information

Details for TPS54140DGQR by Texas Instruments

Electronic & Electrical Components>Semiconductors - ICs>Power Management

Part Description

The TPS54140 device is a 42-V, 1.5-A, step-down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load, regulated output-supply current to 116 μA. Using the enable pin, the shutdown supply current is reduced to 1.3 μA. Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The outputvoltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing and tracking. An open-drain power-good signal indicates the output is within 94% to 107% of the nominal voltage. A wide switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the device during an overload condition. The TPS54140 device is available in a 10-pin thermally enhanced MSOP PowerPAD package.

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Part Features

  • 0.8-V Internal Voltage Reference
  • 1.3-u03bcA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • 116-u03bcA Operating Quiescent Current
  • 200-mu2126 High-Side MOSFET
  • 3.5- to 42-V Input Voltage Range
  • Adjustable Slow Start and Sequencing
  • Adjustable UVLO Voltage and Hysteresis
  • High Efficiency at Light Loads with a Pulse Skipping Eco-modeu2122
  • MSOP10 Package With PowerPADu2122
  • Supported by WEBENCHu00ae
  • Synchronizes to External Clock
  • UV and OV Power-Good Output

Part Specifications

Topology Buck (Step Down)
Input Voltage Min 3.5V
Input Voltage Max 42V
No. of Outputs 1Outputs
DC / DC Converter IC Case MSOP
No. of Pins 10Pins
Output Current 1.5A
Output Voltage Min 800mV
Output Voltage Max 39V
Switching Frequency 2.5MHz
Operating Temperature Max 150°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • DC/DC CONV, BUCK, 2.5MHZ, MSOP-10; Topology:Buck (Step Down); Input Voltage Min:3.5V; Input Voltage Max:42V; No. of Outputs:1Outputs; DC / DC Converter IC Case:MSOP; No. of Pins:10Pins; Output Current:1.5A; Output Voltage Min:800mV; RoHS Compliant: Yes | Newark Electronics
  • 3.5V to 42V Input, 1.5A Step-Down Converter with Eco-Mode | Texas Instruments

Frequently Asked Questions

Where can I find additional details, specifications and documents for a TPS54140DGQR?

Additional datasheets, footprints and schematics for TPS54140DGQR are listed in our Part Details tab. You can also find the TPS54140DGQR image and similar parts on this details page.

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What category does TPS54140DGQR fall under?

The TPS54140DGQR is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

Can I view similar or alternative parts?

You can view similar parts to TPS54140DGQR when available in the Power Management range under the specifications section at the bottom of the details page.

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Is the TPS54140DGQR RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Farnell.

Which authorised distributors for TPS54140DGQR have stock available?

Authorised distributors including Newark Electronics and Texas Instruments have stock available or on a lead time for TPS54140DGQR.

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