The reference design PMP9464 utilizes the LMZ31530, a 30A SIMPLE SWITCHER® Power Module. The LMZ31530 SIMPLE SWITCHER® power module is an easy-to-use integrated power solution that combines a 30-A DC/DC converter with power MOSFETs, a shielded inductor, and passives into a low profile, QFN package.
This design has a LM25056 on the front end. The LM25056 combines high performance analog and digital technology with a PMBus compliant SMBus/I2C interface to accurately measure the operating conditions of electrical systems including computing and storage blades connected to a backplane power bus. This allows the user to monitor the real time values of Vin, Iin, Pin and Pout; as well as temperature and peak power. These values are reported via PMBus™/SMBus™/I2C.
PMP9464 also enables the user to margin the output voltage setting, by slewing it up or down. This is done with the LM10011 VID programmable current DAC. The LP2951 supplies a 3.3V rail for the LM3881 power sequencer. The LM3881 sequencer can be used for sequencing other off board power supplies.
- Adjustable from 0.6V to 3.3 Vout
- 30W Pout for powering wide range of FPGA core rails and asics
- Peak Efficiency at 85% for 0.9V
- Switching Frequency 500kHz
- Design ideal for Power Characterization during design phase and subsequent cost saving