150 mA LDO Regulator with Enable, Reset and Early Warning

The NCV8667 is 150 mA LDO regulator with integrated enable, reset and early warning functions dedicated for microprocessor applications. Its robustness allows NCV8667 to be used in severe automotive environments. The NCV8667 utilizes precise 1 MΩ internal resistor divider for Early Warning function which significantly reduces overall application quiescent current and number of external components. Very low quiescent current as low as 28 μA (Adjustable Early Warning Thresholds) or 42 μA (Preset Early Warning Thresholds) typical for NCV8667 makes it suitable for applications permanently connected to battery requiring very low quiescent current with or without load. The Enable function can be used for further decrease of quiescent current down to 1 μA. The NCV8667 contains protection functions as current limit, thermal shutdown and reverse output current protection.

FEATUREs
• Output Voltage Options: 5 V
• Output Voltage Accuracy: ±2%
• Output Current up to 150 mA
• Very Low Quiescent Current:
   − typ 28 μA for Adjustable Early Warning Threshold Option
   − typ 42 μA for Preset Early Warning Threshold Option
• Very Low Dropout Voltage
• Early Warning Threshold Accuracy: ±10% Over Temperature Range
   (using RSI_ext external resistor with ±1%, 100 ppm/°C)
• Enable Function (1 μA Max Quiescent Current when Disabled)
• Microprocessor Compatible Control Functions:
   − Reset with Adjustable Power−on Delay
   − Early Warning
• Wide Input Voltage Operation Range: up to 40 V
• Protection Features:
   − Current Limitation
   − Thermal Shutdown
   − Reverse Output Current
• These are Pb−Free Devices

Typical Applications
• Body Control Module
• Instruments and Clusters
• Occupant Protection and Comfort
• Powertrain