ON Semiconductor

The NCV4254C is a monolithic integrated low dropout tracking voltage regulator designed to provide an adjustable buffered output voltage that closely tracks the reference input voltage. The output delivers up to 70 mA while being able to be configured higher, lower or equal to the reference voltages. The part can be used in automotive applications with remote sensors or any situation where it is necessary to isolate the output of the other regulator. The NCV4254C also enables the user to bestow a quick upgrade to their module when added current is needed and the existing regulator cannot provide.

The NCV4264 is a wide input range, precision fixed output, low dropout integrated voltage regulator, with a full load current rating of 100 mA. The output voltage is accurate within ±2.0%, and maximum dropout voltage is 500 mV at 100 mA load current.It is internally protected against 45 V input transients, input supply reversal, output overcurrent faults, and excess die temperature. No external components are required to enable these features.

The NCV4266 is a 150 mA output current integrated low dropout regulator family designed for use in harsh automotive environments. It includes wide operating temperature and input voltage ranges. The device is offered with fixed voltage versions of 3.3 V and 5.0 V avaible in 2% output voltage accuracy. It has a high peak input voltage tolerance and reverse input voltage protection. It also provides overcurrent protection, overtemperature protection and enable function for control of the state of the output voltage. The NCV4266 is available in SOT-223 surface mount package. The output is stable over a wide output capacitance and ESR range. The NCV4266 has improved startup behavior during input voltage transients.

The NCV4269C 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 125 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.The active Reset circuit operates correctly at an output voltage as low as 1.0 V. The Reset function is activated during the power up sequence or during normal operation if the output voltage drops outside the regulation limits.The reset threshold voltage can be decreased by the connection of an external resistor divider to the RADJ lead. The regulator is protected against reverse battery, short circuit, and thermal overload conditions. The device can withstand load dump transients making it suitable for use in automotive environments. The device has also been optimized for EMC conditions.

The NCV4274 and NCV4274A are precision micro-power voltage regulators with output current capability of 400 mA available in the SOT-223, DPAK and D2PAK packages. The output voltage 8.5V, 5.0V, 3.3V or 2.5V are accurate within ±2% or ±4% depending on the version, with a maximum dropout voltage of 0.5V with an input up to 40 V.Low Quiescent Current is a feature drawing only 150 µA with a 1 mA load.This part is ideal for automotive and all battery operated microprocessor equipment. The regulator is protected against reverse battery, short circuit, thermal overload conditions and can withstand load dump transients making it suitable for use in automotive environments.

The NCV4275C is an integrated low dropout regulator designedfor use in harsh automotive environments. It includes wideoperating temperature and input voltage ranges. The output isregulated at 5.0 V or 3.3 V and is rated to 450 mA of output current.It also provides a number of features, including overcurrentprotection, overtemperature protection and a programmablemicroprocessor reset. The NCV4275C is available in the DPAK andD2PAK surface mount packages. The output is stable over a wideoutput capacitance and ESR range. The NCV4275C is pin for pincompatible with NCV4275A.

The NCV4276C is a 400 mA output current integrated low-dropout (LDO)regulator family designed for use in harsh automotive environments.It includes wide operating temperature and input voltage ranges. Thedevice is offered with 3.3 V, 5.0 V, and adjustable voltage versionsavailable in 2% output voltage accuracy. It has a high peak inputvoltage tolerance and reverse input voltage protection. It alsoprovides overcurrent protection, overtemperature protection andinhibit for control of the state of the output voltage. The NCV4276Cfamily is available in DPAK and D2PAK surface mount packages.The output is stable over a wide output capacitance and ESR range.The NCV4276C has improved startup behavior during input voltagetransients.

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.The active Reset circuit operates correctly at an output voltage as low as 1.0 V. The Reset function is activated during the power up sequence or during normal operation if the output voltage drops outside the regulation limits.The reset threshold voltage can be decreased by the connection of an external resistor divider to the RADJ lead. The regulator is protected against reverse battery, short circuit, and thermal overload conditions. The device can withstand load dump transients making it suitable for use in automotive environments. The device has also been optimized for EMC conditions. If the application requires pullup resistors at the logic outputs Reset and Sense Out, the NCV4269A with integrated resistors can be used.

The NCV4290 is an integrated low dropout regulator designed for use in harsh automotive enviroments. It includes wide operating temperature and input voltage ranges. The output is regulated at 5 V and is rated to 450 mA of output current.It also provides a number of features, including overcurrent protection, overtemperature protection and a programable microprocessor power good signal. The NCV4290 is available in the DPAK and D2PAK surface mount package. The output is stable over wide output capcitance and ESR range.

The NCV4295C is a monolithic integrated low dropout voltage regulator with an output current capability of 30 mA available in the TSOP–5 package. The output voltage is accurate within ±4.0% with a maximum dropout voltage of 250 mV with an input up to 45 V. Low quiescent current is a feature typically drawing only 160 µA with a 1 mA load. The Power Fail output is driven to low level in case of the output undervoltage. This part is ideal for automotive and all battery operated microprocessor equipment. The regulator is protected against reverse battery, short circuit and thermal overload conditions.