General Description
The AS1334 is a step-down DC-DC converter designed to power portable applications from a single Li-Ion battery. The device also achieves high-performance in mobile phones and other applications requiring low dropout voltage.
   
Key Features
■ Output Voltage Ripple: 2mV
■ PWM Switching Frequency: 2MHz
■ Single Lithium-Ion Cell Operation
■ Output Voltage Range: 1.2V to 3.4V
    (available in 100mV steps, see Ordering Information
    on page 16)
■ Fixed Output Voltages:
    - 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V
■ Maximum Load Capability of 650mA
■ 97% High Efficiency, 94% Average Efficiency
■ Current Overload Protection
■ Thermal Overload Protection
■ Power-OK
■ Soft Start
■ Low Dropout Voltage (140 mΩ Typ PFET)
■ TDFN(3x3) 8-pin
   
Applications
    The AS1334 is an ideal solution to supply noise
    sensitive applications as cellular phones, hand-held
    radios, RF PC cards, battery powered RF devices, RFID
    chipsets, A/D Converter, Sensors and OpAmps.