LTC1985-1.8

V_CC3, V_CC18, V_CCA .................................... 0.3V to 7V
RST .......................................... 0.3V to (V_CC3 + 0.3V)
Operating Temperature Range
   (Note 3) .............................................. 40 to 85
Storage Temperature Range ................ 65 to 150
Lead Temperature (Soldering, 10 sec)................. 300

The LTC^®1985-1.8 is a triple supply monitor intended for systems with multiple supply voltages. The reset output remains low until all three supplies have been in compliance for 200ms. Tight 1.5% accuracy specifications and glitch immunity ensure reliable reset operation without false triggering.

The RST output is guaranteed to be in the correct state for V_CC18 or V_CC3 down to 1V. The LTC1985 may also be configured to monitor any one or two V_CC inputs instead of three, depending on system requirements. Very low (10A typical) supply current makes the LTC1985 ideal for power conscious systems.

The LTC1985 is available in a 5-lead SOT-23 package.