TDA21201 - Infineon Technologies

TDA21201 Integrated Switch

Ground Output voltage from common node of the MOSFETs Input signal from PWM controller Supply voltage to MOSFETs and Driver IC General Description The Integrated Switch TDA21201 incorporates an intelligent MOSFET driver and two Power MOSFETs in a single package to form a fully integrated and optimized power stage of a DC/DC synchronous buck converter includ.

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• Replaces with one part only the semiconductors of a DC/DC power stage for a 12 V à 1 ... 3.3 V conversion: FET driver + High side FET + Low side FET Raises the efficiency by reducing static and dynamic losses beyond 85 % due to optimized MOSFETs and Driver Reduces overall part count and board space consumption Simplifies and shortens the circuit design and the layout Eliminates the need for external bootstrap components Provides simplest overall output current scalability Protects the Driver and the MOSFETs against overtemperature and shoot-through problems Vcc à Gnd.