1 Features

1• Output Current up to 600 mA

• Input Voltage Range from 2.5 V to 5.5 V

• Output Voltage Accuracy in PWM Mode ±2.5%

• Typical 15-μA Quiescent Current

• 100% Duty Cycle for Lowest Dropout

• Soft Start

• Available in a Small SOT, and

2 mm × 2 mm × 0.8 mm SON Package

• For Improved Features Set, See the TPS62290

device (SLVS764)

2 Applications

• PDAs, Pocket PCs, Portable Media Players

• Low-Power DSP Supply

• Point-of-Load (POL) Applications

3 Description

The TPS62560 device is a high efficiency

synchronous step down converter, optimized for

battery powered portable applications. It provides up

to 600-mA output current from batteries, such as

single Li-Ion or other common chemistry AA and AAA

cells.

With an input voltage range of 2.5 V to 5.5 V, the

device is targeted to power a large variety of portable

handheld equipment or POL applications.

The TPS62560 family operates at 2.25-MHz fixed

switching frequency and enters a Power Save Mode

operation at light load currents to maintain a 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.

The TPS62560 allows the use of small inductors and

capacitors to achieve a small solution size.

TPS62560 and TPS62562 are available in a 2-mm ×

2-mm, 6-pin SON package, whereas the TPS62561 is

available in a 5-pin SOT package.