1 Features

1• 3-MHz Switching Frequency

• V IN Range from 2.7 V to 6 V

• 1.6-A Output Current

• Up to 97% Efficiency

• Power Save Mode and 3-MHz Fixed PWM Mode

• Output Voltage Accuracy in PWM Mode ±1.5%

• Output Discharge Function

• Typical 18-μA Quiescent Current

• 100% Duty Cycle for Lowest Dropout

• Voltage Positioning

• Clock Dithering

• Supports Maximum 1-mm Height Solutions

• Available in a 2 mm × 2 mm × 0.75 mm WSON

2 Applications

• Point of Load (POL)

• Notebooks, Pocket PCs

• Portable Media Players

• DSP Supplies

3 Description

The TPS6206x is a family of highly efficient

synchronous step-down DC-DC converters. They

provide up to 1.6-A output current.

With an input voltage range of 2.7 V to 6 V, the

device is a perfect fit for power conversion from a

single Li-Ion battery as well from 5-V or 3.3-V system

supply rails. The TPS6206x operates at 3-MHz fixed

frequency and enters power save mode operation at light load currents to maintain high efficiency over the

entire load current range. The power save mode is

optimized for low output voltage ripple. For low noise

applications, the device can be forced into fixed

frequency PWM mode by pulling the MODE pin high.

In the shutdown mode, the current consumption is reduced to less than 1 μA and an internal circuit

discharges the output capacitor.

TPS6206x family is optimized for operation with a tiny 1-μH inductor and a small 10-μF output capacitor to

achieve smallest solution size and high regulation

performance.

The TPS6206x operates over a free air temperature

of –40°C to 85°C. The device is available in a small

2-mm × 2-mm × 0.75-mm 8-pin WSON PowerPAD™

integrated circuit package.