SMM465

SMM465 4-Channel Active DC Output Controller, Monitor, Marginer and Sequencer FEATURES & APPLICATIONS Extremely accurate (±0.1%) Active DC Output Control (ADOCTM) Undervoltage Lockout function (UVLO) ADOCTM Automatically adjusts supply output voltage level under all DC load conditions Monitors, controls, sequences and margins up to 4 supplies from 0.3V to 5.5V with 1.25V Vref Wide Margin/ADOC range from 0.3V to VDD www.DataSheet4U.com Programmable Power-on/-off sequencing Monitors internal temperature sensor Operates from any intermediate bus supply from 8V to 15V and from 2.7V to 5.5V Monitors 12V input and VDD Monitors two general-purpose 10-bit ADC inputs Programmable threshold limits (2 OV/2 UV) for each monitored input Programmable RESET, HEALTHY and FAULT 4k-bit general purpose nonvolatile memory I2C 2-wire serial bus for programming configuration and monitoring status, including 10-bit ADC conversion results Applications Monitor/Control Distributed and POL Supplies Multi-voltage Processors, DSPs, ASICs used in Telecom, CompactPCI or server systems Preliminary Information1 (See Last Page) INTRODUCTION The SMM465 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 device actively controls up to four DC/DC converters that use a Trim or Regulator VADJ/FB pin to ad...