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PT1202 - 600mA Synchronous Step-Down DC-DC Converter

General Description

The PT1202 is a high efficiency monolithic current mode synchronous buck regulator with a constant operation frequency.

A main switch and a synchronous switch are integrated in PT1202, the device has high efficiency and no external Schottky diode needed.

Key Features

  • High Efficiency: Up to 96% Low Quiescent Current: 300μA 600mA Output Current 2.5V to 5.5V Input Voltage Range 1.9MHz Constant Frequency Operation Internal integrated main switch and rectifier, no Schottky Diode Required Low Dropout Operation: 100% Duty Cycle 0.6V Reference Allows Low Output Voltages Shutdown Mode Draws≤1μA Supply Current Current Mode Operation for Excellent Line and Load Transient Response Over-tempera.

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Datasheet Details

Part number PT1202
Manufacturer Powtech
File Size 611.07 KB
Description 600mA Synchronous Step-Down DC-DC Converter
Datasheet download datasheet PT1202 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PT1202 1.9MHz, 600mA Synchronous Step-Down DC-DC Converter GENERAL DESCRIPTION The PT1202 is a high efficiency monolithic current mode synchronous buck regulator with a constant operation frequency. A main switch and a synchronous switch are integrated in PT1202, the device has high efficiency and no external Schottky diode needed. Supply current is 300uA during operation and drops to ≤1μA in shutdown. The 2.5V to 5.5V input voltage range makes the PT1202 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Automatic skip cycle operation mode at light loads provides very low output ripple for noise sensitive applications. Internal 1.