●General Description
●The RT9619/A is a high frequency, dual MOSFET driver specifically designed to drive two power N-Channel MOSFETs in a synchronous-rectified buck converter topology. This driver combined with Richtek"s series of Multi-Phase Buck PWM controller form a complete core voltage regulator solution for advanced micro-processors.
●The RT9619/A drives both the lower/upper gate in a synchronous-rectifier bridge with 12V. This drive-voltage flexibility provides the advantage of optimizing applications involving trade-offs between switching losses and conduction losses.
●RT9619A has longer UGATE/LGATE deadtime which can drive the MOSFETs with large gate RC value, avoiding the shoot-through phenomenon. RT9619 is targeted to drive low gate RC MOSFETs and performs better efficiency.
●Features
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●Drives Two N-Channel MOSFETs
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●Adaptive Shoot-Through Protection
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●Embedded Boot Strapped Diode
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●Supports High Switching Frequency
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●Fast Output Rise Time
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●Small SOP-8 Package
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●Tri-State Input for Bridge Shutdown
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●Supply Under Voltage Protection
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●RoHS Compliant and 100% Lead (Pb)-Free
●Applications
●z Core Voltage Supplies for Desktop, Motherboard CPU
●z High Frequency Low Profile DC-DC Converters
●z High Current Low Voltage DC-DC Converters
