TPS54162-Q1

TPS54162-Q1 www.ti.com SLVSA32C – OCTOBER 2009 – REVISED MAY 2010 1-A 60-V STEP-DOWN DC/DC CONVERTER WITH LOW QUIESCENT CURRENT Check for Samples: TPS54162-Q1 FEATURES 1 Asynchronous Switch Mode Regulator 3.6 V to 48 V Operating Range, Withstands Transients up to 60 V 1 A Maximum Load Current 50 µA Typical Quiescent Current 200 kHz to 2.2 MHz Switching Frequency 0.8 V ± 1.5% Voltage Reference High Voltage Tolerant Enable Input Soft Start on Enable Cycle Slew Rate Control on Internal Power Switch Low-Power Mode for Light Load Conditions Programmable Delay for Power-On Reset External Compensation for Error Amplifier Reset Function Filter Time for Fast Negative Transients Programmable Overvoltage, Undervoltage Output Monitor Thermal Sensing and Shutdown Switch Current Limit Protection Short Circuit and Overcurrent Protection of FET Junction Temperature Range: –40°C to 150°C 20-Pin HTSSOP PowerPAD™ Package APPLICATIONS Qualified for Automotive Applications Automotive Telematics Navigation Systems In-Dash Instrumentation Battery Powered Applications DESCRIPTION The TPS54162 is a step-down switch-mode power supply with a voltage supervisor and an integrated NMOS switching FET. Integrated input voltage line feed forward topology improves line transient regulation of the voltage mode buck regulator. The regulator has a cycle-by-cycle current limit. The device also features low-power mode operation under light load conditons whic...