TPS57140QDGQRQ1 Description

A 42-V, 1.5-A step-down regulator with an integrated high-side MOSFET is the TPS57140-Q1 device. Simple external compensation and versatile component selection are provided via current-mode control. The regulated output supply current at no load is decreased to 116 A in low-ripple pulse-skip mode. The shutdown current is decreased to 1.5 A when the enable pin is in the low condition.

Internally, undervoltage lockout is set to 2.5 V, although it can be raised by using the enable pin. The slow-start pin, which can be set up for sequencing or tracking, controls the output voltage startup ramp. An open-drain power-good signal means the output voltage is between 92% and 109% of what it should be.

TPS57140QDGQRQ1 Features

• 3.5-V to 42-V Input Voltage Range

• 200-m? High-Side MOSFET

• High Efficiency at Light Loads With PulseSkipping Eco-mode? Control Scheme

• 116-μA Operating Quiescent Current

• 1.5-μA Shutdown Current

• 100-kHz to 2.5-MHz Switching Frequency

• Synchronizes to External Clock

• Adjustable Slow Start and Sequencing

• Undervoltage and Overvoltage Power-Good Output

• Adjustable Undervoltage Lockout Voltage and Hysteresis

• 0.8-V Internal Voltage Reference

TPS57140QDGQRQ1 Applications

• 12-V and 24-V Industrial and Commercial LowPower Systems

• Automotive Infotainment, Head Unit, Display Navigation, Audio and Clusters

• Automotive Body Applications, HVAC, Wireless Charging

• Advanced Driver-Assistance System (ADAS), Rear-View Camera Module, Blind Spot Radar

• Industrial DC Power Systems