MAX8553, MAX8554 4.5V To 28V Input, Synchronous PWM Buck Controllers For DDR Termination And Point-of-Load Applications

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 controllers CAN operate without an external bias supply.
The controllers operate in synchronous-rectification mode to ensure balanced current sourcing and sinking capability of up to 25A. The MAX8553 MAX8554 also provide up to 95% efficiency, making them ideal for server and point-of-load applications. Additionally, a low 5A shutdown current allows for longer battery life in notebook applications. Lossless current monitoring is achieved by monitoring the low-side MOSFET's drain-to-source voltage. The MAX8553 MAX8554 have an adjustable foldback current limit to withstand a continuous output overload and short circuit. Digital soft-start provides control of inrush current during power-up. Overvoltage protection shuts the converter down and discharges the output capacitor. The MAX8553 MAX8554 come in space-saving 16-pin QSOP packages.
By Maxim Integrated Products
Part Manufacturer Description Datasheet Samples
MAX8553EEE Maxim Integrated Products Switching Controller, Voltage-mode, 550kHz Switching Freq-Max, BICMOS, PDSO16, 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-16
MAX8553EEE+T Maxim Integrated Products Switching Controller, Voltage-mode, 550kHz Switching Freq-Max, BICMOS, PDSO16, 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-16
MAX8553EEE+ Maxim Integrated Products Switching Controller, Voltage-mode, 550kHz Switching Freq-Max, BICMOS, PDSO16, 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-16
MAX8553EEE-T Maxim Integrated Products Switching Controller, Voltage-mode, 550kHz Switching Freq-Max, BICMOS, PDSO16, 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-16
MAX8554EVKIT Maxim Integrated Products Evaluation Kit for the MAX8553, MAX8554
MAX8553 's PackagesMAX8553 's pdf datasheet
MAX8553EEE QSOP
MAX8553EEE-T QSOP
MAX8553EEET QSOP




MAX8553 Pinout, Pinouts
MAX8553 pinout,Pin out
This is one package pinout of MAX8553,If you need more pinouts please download MAX8553's pdf datasheet.

MAX8553 Application circuits
MAX8553 circuits
This is one application circuit of MAX8553,If you need more circuits,please download MAX8553's pdf datasheet.


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