MK9218 - Meraki

MK9218 100V Synchronous Buck DC/DC Controller

The MK9218 operates over a wide input voltage range from 6V to 100V. With appropriate high-side and low-side MOSFET and Inductance, the MK9218 delivers up to 30A output current. The MK9218 adopts a voltage mode control architecture to achieve excellent accurate voltage output. The switching frequency is adjustable up to 1 MHz, which also can be synchronized .

Features

• Wide Input Voltage 6V-100V
• Adjustable output from 0.8V to 60V
• 40ns ton(min) for low duty ratio
• 190ns toff(min) for high duty ratio
• Precision ±1% Feedback Reference
• Adjustable FSW from 100kHz to 1MHz
• Configuration diode emulation or FPWM
• 2.5A source and 3.5A sink driver ability
• Prebias start-up
• SYNCI and SYNCO capability
• Open-Drain Power Good Indicator
• Adjustable output voltage soft start
• Input UVLO with hysteresis
• VCC and BOOT UVLO protection
• OC, OT Protection with Hiccup Mode
• QFN20L 4.5mm x 3.5mm Package with Thermal PAD 4 TYPICAL APPLICATION Figure 1. Typica.