INTRODUCTION

The SMM150 is a highly accurate power supply voltage supervisor and environmental monitor with provisions for voltage margining of the monitored supply. The part includes an internal voltage reference to accurately monitor and margin the supply to within ±1.

FEATURES

? Capable of margining supplies with trim inputs using either positive or negative trim pin control

? Wide Margin range from 0.3V to VDD using internal reference

? 10-bit ADC readout of supply voltage over I2C bus

? Margining Controlled Via:

? I2C Command

? Input Pins (MUP, MDN)

? Two programmable general purpose sensor inputs (COMP1/2) – UV/OV with FAULT Output

? Programmable glitch filter (COMP1/2)

? Programmable internal VREF, 0.5V or 1.25V

? Operates from 2.7V to 5.5V supply

? General Purpose 256-Byte EEPROM with Write Protect

? I2C 2-wire serial bus for programming configuration and monitoring status

? 28 lead QFN

? 20 ball Ultra CSPTM (Chip-Scale) package

Applications

? In-system test and control of Point-of-Load (POL) Power Supplies for Multi-voltage Processors, DSPs and ASICs

? Routers, Servers, Storage Area Networks