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TPS54140ADGQR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

TPS54140ADGQR product

TPS54140ADGQR

Voltage Regulators - DC DC Switching Regulators

42 V buck regulator1.5 A outputnon-synchronousEco-modeMSOP-10 PowerPADadjustable UVLO

TPS54140ADGQR is a 42 V, 1.5 A non-synchronous buck regulator with an integrated high-side MOSFET for adjustable low-voltage rails from industrial and automotive-adjacent inputs.

Best for

  • Adjustable buck rails from 12 V or 24 V systems
  • Industrial low-power control electronics
  • Compact non-synchronous step-down converters

Avoid if

  • A synchronous topology is required for higher efficiency at heavy load
  • The application needs more than 1.5 A continuous output current
  • Input transients can exceed the 42 V recommended operating limit without external protection

Check before use

  • Maximum VIN including transients
  • External diode dissipation
  • Inductor saturation-current margin
  • Compensation and load-transient response
  • Exposed-pad grounding and thermal vias

Key specifications

Input voltage
3.5 V to 42 V
Output current
1.5 A maximum
Output voltage
0.8 V to 39 V
Switching frequency
100 kHz to 2.5 MHz
Package
MSOP-10 PowerPAD (DGQ)

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
MSL 1, 260 °C, unlimited floor life
ECCN
-
HTSUS
-

Application

Industrial 12 V and 24 V power railsPoint-of-load buck conversionAftermarket automotive accessories

Datasheet

Texas-Instruments-company-64.pdf

800 KB

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CAD Models

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3D Model
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Where to Buy

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Alternative components

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Design and risk insights

Questions & answers

TPS54140ADGQR is a Texas Instruments adjustable step-down DC/DC regulator. It accepts 3.5 V to 42 V input voltage, supports up to 1.5 A output current, and integrates a high-side N-channel MOSFET in an MSOP-10 PowerPAD package.