●The TPS57140-Q1 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. When the enable pin is in the low state, the shutdown current is reduced to 1.5 µA.
●Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing or tracking. An open-drain power-good signal indicates the output is within 92% to 109% of its nominal voltage.
●A wide switching-frequency range allows optimization of efficiency and external component size. Frequency foldback and thermal shutdown protect the part during an overload condition.
●The TPS57140-Q1 is available in a 10-pin thermally enhanced MSOP-PowerPAD package (DGQ) and a 10-pin VSON package (DRC).
●For all available packages, see the orderable addendum at the end of the data sheet.
● Qualified for Automotive Applications
● AEC-Q100 Qualified with the Following Results:
● Device Temperature Grade 1: –40°C to +125°C
● Device HBM ESD Classification Level 2
● Device CDM ESD Classification Level C4B
● 3.5-V to 42-V Input Voltage Range
● 200-mΩ High-Side MOSFET
● High Efficiency at Light Loads With Pulse-Skipping 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
● Supported by SwitcherPro Software Tool
●(www.ti.com/tool/switcherpro)
●All trademarks are the property of their respective owners.
