TPS62090RGTR Power Path Management IC Switching Voltage Regulators 3A,6VIN,97% eff,Sync SD Converter

1 Features

• 2.5 V to 6 V Input Voltage Range

• DCS-ControlTM

• 95% Converter Efficiency

• Power Save Mode

• 20 μA Operating Quiescent Current

• 100% Duty Cycle for Lowest Dropout

• 2.8 MHz/1.4 MHz Typical Switching Frequency

• 0.8 V to VIN Adjustable Output Voltage

• Fixed Output Voltage Versions

• Output Discharge Function

• Adjustable Softstart

• Hiccup Short Circuit Protection

• Output Voltage Tracking

• Pin-to-pin compatible with TPS62095

2 Applications

• Distributed Power Supplies

• Notebook, Netbook Computers

• Hard Disk Drivers (HDD)

• Solid State Drives (SSD)

• Processor Supply

• Battery Powered Applications

3 Description

The TPS6209x devices are a family of high frequency synchronous step down converters optimized for small solution size, high efficiency and 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/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-ControlTM topology the devices achieve excellent load transient performance and accurate output voltage regulation.

The output voltage start-up ramp is controlled by the softstart pin, which allows operation as either a stand- alone 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.