TPS54140DGQ Part Information

Details for TPS54140DGQ 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)
Accuracy % 1%
Adjustable Output Voltage Min 0.8V
Base Number 5414
Frequency 2.5MHz
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +150°C
Output Voltage 39V
Primary Input Voltage 42V
Supply Voltage Min 3.5V
Termination Type Surface Mount Device
Voltage Regulator Type Step Down
RoHS Compliant

Alternative Part Descriptions

  • 3.5V to 42Vin Step Down SWIFT Converter | RS Components
  • DC DC CONVERTER, STEP DOWN, 10MSOP; 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
  • DC/DC Converter [Texas Instruments] TPS54140DGQ DC/DC Converter | Distrelec

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