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PT1311 - High Efficiency Synchronous Boost DC/DC Converter

General Description

The PT1311 is a high efficiency synchronous fixed frequency step-up DC/DC converter.

The device is available in an adjustable version and fixed output voltages of 3.3V or 5.0V.

Supply current during operation is only 25μA and drops to ≤1μA in shutdown.

Key Features

  • z z z z z z z z z z z z z High Efficiency: Up to 93% Very Low Quiescent Current: Only 25μA During Operation 600mA Output Current 0.85V to 4.2V Input Voltage Range 1.2MHz Constant Frequency Operation No Schottky Diode Required Anti-ringing Control Minimizes EMI Output Short Protect Shutdown Mode Draws≤1μA Supply Current Current Mode Operation for Excellent Line and Load Transient Response Over temperature Protected Feedback Voltage Auto Detect SOT23-6 Package.

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Datasheet Details

Part number PT1311
Manufacturer PowTech
File Size 315.01 KB
Description High Efficiency Synchronous Boost DC/DC Converter
Datasheet download datasheet PT1311 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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PT1311 High Efficiency Synchronous Boost DC/DC Converter GENERAL DESCRIPTION The PT1311 is a high efficiency synchronous fixed frequency step-up DC/DC converter. The device is available in an adjustable version and fixed output voltages of 3.3V or 5.0V. Supply current during operation is only 25μA and drops to ≤1μA in shutdown. The 0.85V to 4.2V input voltage range makes the PT1311 ideally suited for single Li-Ion battery or single AA battery applications. Automatic Burst Mode operation increases efficiency at light loads, further extending battery life. Switching frequency is internally set at 1.2MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode.