The NCP81253AMNTBG is a high-performance dual MOSFET gate driver in a small 2 mm x 2 mm package, optimized to drive the gates of both high-side and low-side power MOSFETs in a synchronous buck converter. The driver outputs can be placed into a high-impedance state via the tri-state PWM and EN inputs. The NCP81253AMNTBG comes packaged with an integrated boost diode to minimize the number of external components. A VCC UVLO function guarantees the outputs are low when the supply voltage is low.
Feature
- Internal bootstrap diode
- Reduces number of external components
- 5 V 3-stage PWM input
- Allows for high-impedance state
- Adaptive anti-cross-conduction circuit
- Protects against cross-conduction during FET turn-on and turn-off
- Diode braking capability
- Quickly reduces inductor current
- Output disable control
- Ability to turn off both MOSFETs via the Enable pin
- VCC undervoltage lockout
- Guarantees outputs are low when supply voltage is low
Applications
- Power solutions for notebook and desktop systems
