FEATURES
n Monitors Three Inputs Simultaneously LTC1726-5: 5V, 3.3V and ADJ LTC1726-2.5: 2.5V, 3.3V and ADJ n ±1.5% Threshold Accuracy Over Temperature n Low Supply Current: 16µA Typ n Adjustable Reset Timeout n Adjustable Watchdog Timeout n Active Low Open-Drain Reset Output n Power Supply Glitch Immunity n Guaranteed RESET for VCC3 ≥ 1V or VCC25/VCC5 ≥ 1V n MS8 and SO-8 Packages APPLICATIONS
n Desktop Computers n Notebook Computers n Intelligent Instruments n Portable Battery-Powered Equipment n Network Servers DESCRIPTION
The LTC®1726 is a triple supply monitor and microprocessor supervisory circuit with adjustable reset and watchdog functions intended for systems with multiple supply voltages. The part has a common open-drain reset output with an adjustable delay. The reset and watchdog time-out periods are both adjustable using external capacitors. 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 VCC5/VCC25 or VCC3 down to 1V.
Linear Technology
