MAX8553 Datasheet (Maxim) - 4.5V to 28V Input / Synchronous PWM Buck Controllers

MAX8553, 4.5V to 28V Input / Synchronous PWM Buck Controllers

The MAX8553 is a 4.5V to 28V input-voltage, synchronous step-down controller that provides a complete power-management solution for DDR memory.

The MAX8553 generates 1/2 VREFIN voltage for VTT and VTTR.

The VTT and VTTR tracking voltages are maintained within 1% of 1/2 VREFIN.

The MAX8554 is a 4.5V

MAX8553 Features

* MAX8553/MAX8554 Typical Operating Circuit VIN +5V EN/HSD DH Applications Wide-Input Power Supplies Servers and Storage Applications ASIC and CPU Core Voltages Notebook and LCD-PC Power Supplies DDR I and DDR II Memory Power Supplies AGTL Bus Termination Supplies POK POK REFIN MAX8553 VL REFIN V