Gate Driver
MOSFET Driver
uP1988
12V MOSFET Drivers with Output Disable for Multi-Phase Synchronous-Rectified Buck Converter
Datasheets PDF
General Description
The uP1988 is a dual, high voltage MOSFET driver optimized for driving two N-channel MOSFETs in a synchronousrectified buck converter. Each driver is capable of driving a 5000pF capacitive load with 30ns transition time. This device combined with uPI multi-phase buck PWM controller forms a complete core voltage regulator for advanced microprocessors. The uP1988 features anti-shoot-through protection that prevents cross-conduction of the external MOSFET while maintains minimum deadtime for optimized efficiency.
This part has integrated bootstrap switch to help minimize the external component count. 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 supply input under voltage lockout. The uP1988 is available in a thermally enhanced WQFN3x3-16L package.
Pin Configuration & Typical Application Circuit
Feature
- All-In-One Synchronous Buck Drivers
- Integrated Bootstrap Switch
- Integrated Gate-to-Source Discharge Resistors
- Anti-Shoot-Through Protection Circuitry
- Tri-State Input for Bridge Shutdown
- Output Disable Control Turns Off both MOSFETs
- Under Voltage Lockout for Supply Input
- High-Side MOSFET Short Power on Protection
- Allow PWM Pin as Multi-Function Setting Application
- WQFN3x3-16L Package
- RoHS Compliant and Halogen Free
Application
- Desktop CPU Core Voltage Regulators
- High Frequency Low Profile DC/DC Converter
- High Current Low Voltage DC/DC Converter