GENERAL DESCRIPTION
The output voltage can be adjusted with external resisters. With the enhanced voltage mode operation, the PT1102 achieves good loop stability with wide operating range. Under light load conditions, the PT1102 automatically switches to a VFM mode to improve efficiency. Fault condition protection includes current limiting and thermal shutdown. Furthermore, the PT1102 has a built-in UVLO function that prevents the output from being unstable when the input voltage becomes too low. The PT1102 is available in SOP8 packages. FEATURES
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z z z Distributed Power Systems Battery Chargers Pre-regulator for linear Regulators Wide Range Of Input Voltage: 2.5V~18V Oscillation Frequency: 500kHz Standby Current: Typical 0.1µA High Efficiency: Typical 88% Low Temp. Coefficient of Feedback Voltage: Typical ±100ppm/℃ Built-in Soft-start and UVLO Thermal Shutdown Package: SOP-8 TYPICAL APPLICATION CIRCUIT KEY PERFORMANCE CHART Efficiency vs. Output Current 100...