19-3017; Rev 0; 10/03
4.
5V to 28V Input, Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications
General Description
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 to 28V input
voltage, nontracking step-down controller with a low 0.
6V feedback threshold
voltage.
The MAX8553/ MAX8554 use Maxim’s proprietary Quick-PWM™ architecture for fast transient response and operate with selectable pseudo-fixed frequencies.
Both...