描述 Description

The UP1965 is 5V MOSFET driver optimized for drivingtwoN-channel MOSFETs in a synchronous rectified buckconverter for mobile computing application. This part hasintegrated bootstrap diode to eliminate external componentcount. The resistor commonly placed between MOSFETgate and source for discharge is also integrated, makingexternal component minimal. This device combined withuPl multi-phase buck PWM controller forms a completecore voltage regulator for advanced microprocessors.

The uP1965 supports enable/disable function that reducesthe power consumption to prolong battery life. Both gatedrives are turned off by pulling low EN pin or high-impedanceat PWM pin, preventing rapid output capacitor dischargeduring system shutdown. This device also supports threePWM input states that along with PWM controller to providea complete power solution.

The uP1965 implements anti-shoot-through protection thatprevents cross-conduction of the external MOSFET whilemaintains minimum deadtime for optimized efficiency. Thisdevice also supports supply input under voltage lockout.The uP1965 is available in thermally enhanced WDFN3x3-8L and WDFN2x2-8L packages.

特性 Features

·Single 5V Driving Voltage Output
·Integrated Bootstrap Diode
·Integrated Gate-to-Source Discharge Resistors
·Enable/Disable Control
·Allow PWM Pin as Multi-Function Setting Application
·Three PWM Input States: High, Low and Tri-State
·Tri-State Input for Bridge Shutdown
·Anti-Shoot-Through Protection Circuitry
·Under Voltage Lockout for Supply Input
·WDFN3x3-8L and WDFN2x2-8L Packages
·RoHS Compliant and Halogen Free

應(yīng)用 Application

·Desktop/Laptop CPU/GPU Core Voltage Regulators
·High Frequency Low Profile DC/DC Converter
·High Current Low Voltage DC/DC Converter