●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 set at 2.5 V, but can be increased using the enable pin. The slow-start pin, which is also configurable for sequencing or tracking, controls the output voltage start-up ramp. 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-EP is available in a 10-pin VSON package (DRC).
● 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
● Supported by SwitcherPro Software Tool
●(http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
● For SWIFT Documentation, See the TI Website at http://www.ti.com/swift
●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
