TPS40170-EP

www.ti.com TPS40170-EP SLVSBT7A – MARCH 2013 – REVISED APRIL 2013 4.5-V TO 60-V WIDE-INPUT SYNCHRONOUS PWM BUCK CONTROLLER Check for Samples: TPS40170-EP FEATURES 1 2 Wide-Input Voltage Range from 4.5 V to 60 V 600-mV Reference Voltage With 1% Accuracy Programmable UVLO and Hysteresis Voltage-Mode Control With Voltage Feed- Forward Programmable Frequency Between 100 kHz and 600 kHz Bidirectional Frequency Synchronization With Master/Slave Option Low-Side FET Sensing Overcurrent Protection and High-Side FET Sensing Short-Circuit Protection With Integrated Thermal Compensation Programmable Closed-Loop Soft-Start Supports Pre-Biased Outputs Thermal Shutdown at 165°C With Hysteresis Voltage Tracking Power Good ENABLE With 1-µA Low-Current Shutdown 8-V and 3.3-V LDO Output Integrated Bootstrap Diode 20-Pin 3.5-mm × 4.5-mm QFN (RGY) Package APPLICATIONS POL Modules Wide Input Voltage, High-Power-Density DC/DC Converter 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 DESCRIPTION TPS40170 is a full-featured, synchronous PWM buck controller that operates at an input voltage between 4.5 V and 60 V and is optimized for high-powerdensity, high-reliability dc-dc converter applications. The controller implements voltage-mode...