Compact, High Efficiency And Low Voltage Step-up DC/DC Converter

The PT1309 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 0.8V start-up input voltage makes PT1309 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. The output voltage is set with two external resistors. The 500KHz high switching rate reduces the size of external components. Besides, the 14A low quiescent current together with high efficiency maintains long battery lifetime. By China Resources Powtech (Shanghai) Co., Ltd
PT1309 's PackagesPT1309 's pdf datasheet

PT1309 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
PT1309 Application circuits
PT1309 circuits
This is one application circuit of PT1309,If you need more circuits,please download PT1309's pdf datasheet.

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