
ON Semiconductor
5.0 V Micropower 150 mA LDO Linear Regulator with DELAY, Adjustable RESET, and Sense Output
The NCV4279A is a 5.0 V precision micropower voltage regulator with an output current capability of 150 mA.
The output voltage is accurate within ±2.0% with a maximum dropout voltage of 0.5 V at 100 mA. Low quiescent current is a feature drawing only 150 μA with a 1.0 mA load. This part is ideal for any and all battery operated microprocessor equipment.
Microprocessor control logic includes an active reset output RO with delay and a SI/SO monitor which can be used to provide an early warning signal to the microprocessor of a potential impending reset signal. The use of the SI/SO monitor allows the microprocessor to finish any signal processing before the reset shuts the microprocessor down.
FEATUREs
• 5.0 V ± 2.0% Output
• Low 150 μA Quiescent Current
• Active Reset Output Low Down to VQ = 1.0 V
• Adjustable Reset Threshold
• 150 mA Output Current Capability
• Fault Protection
♦ +60 V Peak Transient Voltage
♦ −40 V Reverse Voltage
♦ Short Circuit
♦ Thermal Overload
• Early Warning through SI/SO Leads
• Internally Fused Leads in SO−14 Package
• Very Low Dropout Voltage
• Electrical Parameters Guaranteed Over Entire Temperature Range
• These are Pb−Free Devices
• NCV Prefix for Automotive and Other Applications Requiring Site
and Change Controls