TPS57140-EP

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS57140-EP SLVSD01B – SEPTEMBER 2015 – REVISED MAY 2019 TPS57140-EP 1.5-A 42-V Step-Down DC/DC Converter With Eco-mode™ Control 1 Features 1 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 (UVLO) Voltage and Hysteresis 0.8-V Internal Voltage Reference Supports Defense, Aerospace, and Medical Applications – Controlled Baseline – One Assembly and Test Site – One Fabrication Site – Available in Military (–55°C to 125°C) Temperature Range – Extended Product Life Cycle – Extended Product-Change Notification – Product Traceability 2 Applications 12-V and 24-V Industrial and Commercial LowPower Systems Aftermarket Automotive Accessories: Video, GPS, Entertainment 3 Description The TPS57140-EP 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 reduces the shutdown supply current to 1.5 μA. UVLO is internally s...