TPS62090-Q1

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 1: –40°C to 125°C Junction Operating Temperature Range
  • Device HBM ESD Classification Level H2
  • Device CDM ESD Classification Level C6
• 2.5-V to 6-V Input Voltage Range
• DCS-Control™
• 95% Converter Efficiency
• Power Save Mode
• 20-µA Operating Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• 2.8-MHz and 1.4-MHz Typical Switching Frequency
• 0.8-V to V_IN Adjustable Output Voltage
• Output Discharge Function
• Adjustable Soft Start
• Hiccup Short-Circuit Protection
• Output Voltage Tracking
• Wide Output Capacitance Selection
• Available in 3 mm × 3 mm 16-pin QFN Package

The TPS62090Q devices are a family of high-frequency, synchronous, step-down converters optimized for small solution size, high efficiency, and are suitable for battery-powered applications. To maximize efficiency, the converters operate in pulse width modulation (PWM) mode with a nominal switching frequency of 2.8 MHz to 1.4 MHz and automatically enter power save mode operation at light load currents. When used in distributed power supplies and point-of-load regulation, the devices allow voltage tracking to other voltage rails and tolerate output capacitors ranging from 10 µF up to 150 µF and beyond. Using the DCS-Control™ topology, the devices achieve excellent load transient performance and accurate output voltage regulation.

The output voltage start-up ramp is controlled by the SS pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable and power good pins. In power save mode, the devices operate at typically 20-µA quiescent current. Power save mode is entered automatically and seamlessly maintaining high efficiency over the entire load current range.