AS1334 - austriamicrosystems AG

AS1334 650mA Ultra low Ripple Step Down DC/DC Converter

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. The AS1334 operates from an input voltage range of 2.7 to 5.5V while providing output voltages of 1.2, 1.5, 1.8, 2.5, 3.0 and 3.3V. Fix.

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 ! ! ! ! ! ! ! ! ! 3 Applications The AS1334 is an ideal solution to supply noise sensitive applications as cellular phones, hand-he.