uP1965P
uPI Semiconductor
5V MOSFET Driver with Output Disable for Single Phase Synchronous-Rectified Buck Converter
Package Type: WDFN3x3- 8L
The uP1965 is 5V MOSFET driver optimized for driving two N-channel MOSFETs in a synchronous rectified buck converter for mobile computing application. This part has integrated bootstrap diode to eliminate external component count. The resistor commonly placed between MOSFET gate and source for discharge is also integrated, making external component minimal. This device combined with uPI multi-phase buck PWM controller forms a complete core voltage regulator for advanced microprocessors. The uP1965 supports enable/disable function that reduces the power consumption to prolong battery life. Both gate drives are turned off by pulling low EN pin or high-impedance at PWM pin, preventing rapid output capacitor discharge during system shutdown. This device also supports three PWM input states that along with PWM controller to provide a complete power solution. The uP1965 implements anti-shoot-through protection that prevents cross-conduction of the external MOSFET while maintains minimum deadtime for optimized efficiency. This device also supports supply input under voltage lockout. The uP1965 is available in thermally enhanced WDFN3x3- 8L and WDFN2x2-8L packages.
Data sheet
