FEATURES
GENERAL DESCRIPTION
Input voltage: 2.3 V to 5.5 V Peak efficiency: 95% 3 MHz fixed frequency operation Typical quiescent current: 24 μA Very small solution size 6-lead, 1 mm × 1.5 mm WLCSP package Fast load and line transient response 100% duty cycle low dropout mode Internal synchronous rectifier, compensation, and soft start Current overload and thermal shutdown protections Ultralow shutdown current: 0.2 μA (typical) Forced PWM and automatic PWM/PSM modes Supported by ADIsimPower™ design tool When the MODE pin is set high, the buck regulator operates in forced PWM mode, which provides low peak-to-peak ripple for power supply noise sensitive loads at the expense of light load efficiency. When the MODE pin is set low, the buck regulator automatically switches operating modes, depending on the load current level. At higher output loads, the buck regulator operates in PWM mode. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving light load efficiency.
Analog Devices
