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2022-09-24 21:48:02
TPS54140DGQREco-Mode 3.5V to 42V Input, 1.5A Step-Down Converter
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The TPS 54140 device is a 42-V, 1.5A, platform-hopping 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 no-load, regulated output supply current to 116A, and an enable pin reduces switching supply current to 1.3A.
Undervoltage lockout is internally set at 2.5 volts, but can be increased using the enable pin. The output voltage start-up ramp is controlled by the slow-start pin and can also be configured for sequencing and tracking. A signal with good open-circuit leakage indicates that the output is between 94% and 107% of nominal voltage.
The wide switching frequency range optimizes efficiency and external component size. In overload conditions, frequency retraction and thermal shutdown protect the device.
The TPS 54140 device is available in the 10-pin thermally enhanced MSOP PowerPAD software package.
3.5-42-V input voltage range 200-mΩ high-side MOSFET with pulse mode skip under light load ? 116-A operating quiescent current 1.3-A shutdown current 100 kHz to 2.5 MHz switching frequency Synchronization to external clock Adjustable slow start and sorting UV and OV power - good output adjustable UVLO voltage and hysteresis 0.8V voltage reference MSOP 10 package support WEBENCH software tool support