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The RT9628 is a high frequency, triple Channel driver specifically designed to drive two power N-MOSFETs in each channel of a synchronous-rectified Buck converter topology. It is especially suited for mobile computing applications that require high efficiency and excellent thermal performance. This driver, combined with Richtek's series of multi-phase Buck PWM controllers, provides a complete core voltage regulator solution for advanced microprocessors. The drivers are capable of driving a 3nF load with fast rising/falling time and fast propagation delay. This device implements bootstrapping on the upper gates with only a single external capacitor. This reduces implementation complexity and allows the use of higher performance, cost effective, N-MOSFETs. Adaptive shoot through protection is integrated to prevent both MOSFETs from conducting simultaneously.
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<div class="spec-list"><ul class="lv1"><li>Triple Channel Driver </li><li>Each Channel Drives Two N-MOSFETs </li><li>Adaptive Shoot-Through Protection </li><li>0.5Ω On-Resistance, 4A Sink Current Capability </li><li>Supports High Switching Frequency </li><li>Tri-State PWM Input for Power Stage Shutdown </li><li>Output Disable Function </li><li>Integrated Boost Switch </li><li>Low Bias Supply Current </li><li>VCC POR Feature Integrated </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Core Voltage Supplies for Intel<sup>® </sup>/ AMD<sup>®</sup> Mobile Microprocessors </li><li>High Frequency Low Profile DC/DC Converters </li><li>High Current Low Output Voltage DC/DC Converters </li><li>High Input Voltage DC/DC Converters </li></ul></div>
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