Key Features

■ 300 mA buck regulator

□ 750 nA total input current (buck enabled

no load, LDO disabled)

□ Up to 81 efficiency at 1.8 V output,

10 μA load current

□ Input voltage 2.5 V to 5.5 V (Minimum

2.75 V for start-up)

□ Output voltage 0.6 V to 1.9 V

□ Dynamic Voltage Control (DVC)

■ 100 mA LDO/Load Switch

□ Ultra-low quiescent current

□ Input voltage 1.8 V to 5.5 V

□ Output voltage 0.7 V to 3.3 V

■ I2C interface for device configuration and

control

■ Protection features and System monitors

■ Small 1.65 mm x 1.25 mm, 12-pin WLCSP

package