LT3689-5
Key Features
- The regulator operates from inputs up to 36V and withstands transients up to 60V
- Shutdown circuitry reduces input supply current to less than 1μA while EN/UVLO is pulled low
- Using a resistor divider on the EN/UVLO pin provides a programmable undervoltage lockout
- Current limit, frequency foldback and thermal shutdown provide fault protection
- The reset and watchdog timeout periods are independently adjustable using external capacitors
- Tight accuracy specifications and glitch immunity ensure reliable reset operation of a system without false triggering
- The open collector RST will pull down if output voltage drops 10% below the programmed value
- The watchdog timer is pin-selectable for window or timeout modes
- In timeout mode, WDO pulls low if too long of a period passes before a watchdog transition is detected
- In window mode, the LT3689 monitors for WDI falling edges grouped too close together or too far apart
