DESCRIPTION
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.

FEATURES
■ Monitors Three Inputs Simultaneously: 3V, 1.8V and Adjustable
■ ±1.5% Threshold Accuracy Over Temperature
■ Very Low Supply Current: 10µA Typ
■ 200ms Reset Time Delay
■ Power Supply Glitch Immunity
■ Guaranteed RESET for VCC3 ≥ 1V or VCC18 ≥ 1V
■ 3V Active-Low Push-Pull Reset Output
■ 5-Lead SOT-23 Package

APPLICATIONS
■ Desktop Computers
■ Notebook Computers
■ Intelligent Instruments
■ Portable Battery-Powered Equipment
■ Network Servers