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XC9128 - Step-Up DC/DC Converters

Description

The XC9128/XC9129 series are synchronous step-up DC/DC converters with a 0.2Ω (TYP.) N-channel driver transistor and a synchronous 0.2Ω (TYP.) P-channel switching transistor built-in.

Features

  • h Efficiency, Large Current Step-Up Converter Output Current : 150mA＠VOUT=3.3V, VIN=0.9V 500mA＠VOUT=3.3V, VIN=1.8V Input Voltage Range : 0.8V ~ 6.0V : 1.8V ~ 5.3V (Externally set) Output Voltage Setting Set up freely with a reference voltage Range supply of 0.45V (±0.010V) & external components Oscillation Frequency : 1.2MHz (Fixed oscillation frequency accuracy ±15%) Input Current : 1.0A Maximum Current Limit : 1.2A (MIN. ), 2.0A (MAX. ) Control : PWM, PWM/PFM control externally.

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Full PDF Text Transcription

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XC9128/XC9129 Series 1A Driver Transistor Built-In, Step-Up DC/DC Converters ETR0411-012 ☆Green Operation Compatible ■GENERAL DESCRIPTION The XC9128/XC9129 series are synchronous step-up DC/DC converters with a 0.2Ω (TYP.) N-channel driver transistor and a synchronous 0.2Ω (TYP.) P-channel switching transistor built-in. A highly efficient and stable current can be supplied up to 1.0A by reducing ON resistance of the built-in transistors. With a high switching frequency of 1.2MHz, a small inductor is selectable making the series ideally suited for applications requiring low profile or space saving solutions. With the MODE pin, the series provides mode selection of PWM control or PFM/PWM automatic switching control.
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