SMM764 Datasheet - Summit Microelectronics

INTRODUCTION
   The SMM764 is an Active DC Output power supply Controller (ADOCTM) that monitors, margins, and cascade sequences. The ADOC feature is unique and maintains extremely accurate settings of system supply voltages to within ±0.2% under full load. The SMM764 actively controls up to 4 DC/DC converters and can be linked with up to 7 other Sequence-Link™ devices to accommodate sequencing of up to 46 channels. Control of the DC-DC converters is accomplished through the use of a Trim or Regulator VADJ/FB pin to adjust the output voltage.

FEATURES & APPLICATIONS
• Extremely accurate (±0.2%) output voltages
   using Active DC Output Control (ADOC™)
• Sequence-Link™ provides sequencing of up to
   46 channels
• ADOC automatically adjusts supply output
   voltage level under all DC load conditions
• Monitors, controls and margins up to 4 supplies
   from 0.3V to 5.5V
• Programmable power-on/-off sequencing
• Operates from any intermediate bus supply
   from 6V to 14V and from 2.7V to 5.5V
• Monitors 12V input VDD and temperature sensor
• Wide margin/ADOC range from 0.3v to VDD
• Monitors two general-purpose 10-bit ADC inputs
• I2C 2-wire serial bus for programming
   configuration and monitoring status, including
   10-bit ADC conversion results
• 2 programmable Under Voltage (UV) and Over
   Voltage (OV) threshold limits for each of 9
   monitored inputs
• 2k-bit general purpose nonvolatile memory

APPLICATIONs
• Monitor/control distributed and POL supplies
• Multi-voltage processors, DSPs, ASICSs used in
   telecom, CompactPCI or server systems