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Product Spec Banner
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The RT9397BF is a highly integrated step-up charge pump and inverting charge pump to generate positive and negative output voltage. The output voltages can be adjusted from ±4.5V to ±6V through external feedback resistors. The part maintains highest efficiency by utilizing a x1.33/x1.5/x1.75/x2 mode fractional charge pump with automatic mode transition. The RT9397BF is available in a WQFN-20L 3x3 package to achieve optimized solution for PCB space.
RT9397BF Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>2.7V to 4.5V Supply Voltage Range </li><li>Over 80% Average Efficiency of Battery Life </li><li>Support up to 50mA Output Current </li><li>Low 1μA Shutdown Current </li><li>Internal Soft-start Function </li><li>Short Circuit Protection Function </li><li>Over-Voltage Protection Function </li><li>Over-Temperature Protection Function </li><li>Charge Pump Controller with Automatic Mode Transition </li><li>Adaptive x1.33/x1.5/x1.75/x2 Charge Pump Mode Transition for Positive Voltage and x-1 for Negative Voltage </li><li>Low Input Noise and EMI </li><li>Output with Fast Discharge when IC shutdown </li><li>Adjustable Output Voltage Through External Feedback Resistor </li><li>Available in 20-Lead WQFN Package </li></ul></div>
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RT9397BF Ordering Information
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<div class="spec-list"><ul class="lv1"><li>TFT-LCD Smart Phone Display </li></ul></div>
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