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PT1301 - High Efficiency Low Voltage Step-up DC/DC Converter

General Description

The PT1301 is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop.

It comprises of an error amplifier, a ramp generator, a PWM comparator, a switch pass element and the driver.

Key Features

  • z Low Quiescent (Switch-off) Supply Current: 14μA z Low Start-up Input Voltage: typical 0.8V z High Supply Capability: Deliver 3.3V 100mA with 1Alkaline Cell; 5V 300mA with 1 Li-Cell z Zero Shutdown Mode Supply Current z High efficiency: 90% z Fixed switching frequency: 500KHz z Options for internal or external power switches z Package type: SOT-23-6, SOT-89-5,MSOP8.

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Datasheet Details

Part number PT1301
Manufacturer PowTech
File Size 433.87 KB
Description High Efficiency Low Voltage Step-up DC/DC Converter
Datasheet download datasheet PT1301 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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PT1301 High Efficiency Low Voltage Step-up DC/DC Converter GENERATION DESCRIPTION The PT1301 is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop. It comprises of an error amplifier, a ramp generator, a PWM comparator, a switch pass element and the driver. It provides stable and high efficient operation over a wide range of load currents without external compensation. The below 1V start-up input voltage makes PT1301 suitable for single battery cell applications. The built-in power transistor is able to provide up to 300mA output current while working under Li-Battery Supply. Besides, it provides extra pin to drive external power devices (NMOS or NPN ) in case higher output current is needed.