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The FD1505 is an integrated high-speed, high-current, N-channel MOSFET driver for synchronous step-down DC-DC conversion applications.
When used with Digital-DC™ PWM controllers, the FD1505 enables dynamically adaptive dead-time control that optimizes efficiency under all
operating conditions. A dual input PWM configuration enables this efficiency optimization while minimizing complexity within the driver.
Operating from a 4.5V to 7.5V input, the FD1505 combines a 5A, 0.5W low-side driver and a 3A,
0.8W high-side driver to support high step-down buck applications.
A unique adjustable gate drive current scheme allows the user to adjust the drive current on both drivers to optimize
performance for a wide range of input/output voltages, load currents, power MOSFETs, and switching frequencies up to 1.4MHz.
An integrated 30V bootstrap Schottky diode is used to charge the external bootstrap capacitor. An internal watchdog
circuit prevents excessive shoot-through currents and protects the external MOSFET switches.
The FD1505 is specified over a wide -40°C to 125°C junction temperature range and is available in an exposed-pad, DFN-10 package.
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