ON Semiconductor

The NCV8506 is a family of precision micropower voltage regulators with 400mA output current capability. The family has output voltage options for adjustable, 2.5 V, 3.3 V and 5.0 V that are accurate within ±2.0%. Maximum dropout voltage reaches 0.6 V at full load.Microprocessor control logic includes an active RESET (with DELAY). 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 below the regulation limits.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 NCV8508C is a precision micropower Low Dropout (LDO) voltage regulator. The part contains many of the required features for powering microprocessors. Its robustness makes it suitable for severe automotive environments. In addition, the NCV8508C is ideal for use in battery operated, microprocessor controlled equipment because of its low quiescent current.

The NCV8509 Series are dual voltage regulators whose output voltages power up in such a manner as to protect the integrity of modern day microcontroller I/O and ESD input structures.Newer generation microcontrollers require two power supplies. One voltage is used for powering the core, while the other powers the I/O.Power up sequencing of these dual voltages is crucial to ensure the integrity of the microprocessor.

The NCV8512 is a 5.0 V precision micropower voltage regulator. The output current capability is 150 mA. The output voltage is accurate within +/- 2.0% with a maximum dropout voltage of 0.6V at 150 mA.Low quiescent current is a feature drawing only 130µA with a 100µA load. This part is ideal for any and all battery operated microprocessor equipment.Microprocessor control logic includes an active RESET (with DELAY), and a FLAG monitor which can be used to provide an early warning signal to the microprocessor of a potential impending RESET signal. The use of the FLAG monitor allow the microprocessor to finsh 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 NCV8518A device is a precision micropower voltage regulator. It has a fixed output voltage of 5.0 V and regulates within ±2%.Microprocessor control logic includes an active RESET (with DELAY), wakeup, watchdog and enable.The NCV8518A Wakeup function brings the microprocessor out of Sleep mode. The microprocessor in turn signals its Wakeup status back to the NCV8518A by issuing a Watchdog signal.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, during normal operation if the output voltage drops below the regulation limits or if the regulator does not receive a Watchdog signal within a Wakeup period.The Watchdog logic function monitors an input signal (WDI) from the microprocessor. The device responds to the falling edge of the Watchdog signal which it expects at least once during each Wakeup period.Enable is a standard TTL and CMOS logic compatible input that can be used to turn the regulator on or off. In the disabled/shutdown state, the pass transistor is off and total quiescent current is less than 1 µA.Also encompassed in this device are safety features such as thermal shutdown and short circuit protection, an important consideration in automotive environments.NCV8518A is pin for pin compatible with NCV8518 and can replace this device in any new design.

The NCV8535 Low Quiescent Current Low Dropout (LDO) Linear Voltage Regulator is a high performance, LDO regulator. With accuracy of +/-0.9% over line and load and ultra-low quiescent current and noise it encompasses all of the necessary features required by today's consumer electronics. This unique device is guaranteed to be stable without a minimum load current requirement and stable with any type of capacitor as small as 1.0 uF. The NCV8535 also comes equipped with sense and noise reduction pins to increase the overall utility of the device. The NCV8535 offers reverse bias protection.

The NCV8560 Low Dropout (LDO) Linear Voltage Regulator provides 150mA of output current at fixed voltage options, or an adjustable output voltage from 5.0 V down to 1.250 V. It is designed for battery powered systems and is qualified for use in automotive applications. It offers high performance features such as low power operation, fast enable response time, and low dropout. The device is designed to be used with low cost ceramic capacitors and is packaged in the DFN6, 3x3 package.

Noise sensitive RF applications such as Power Amplifiers in satellite radios, infotainment equipment, and precision instrumentation for automotive applications require very clean power supplies.The NCV8570 Low Dropout (LDO) Linear Voltage Regulator is a 200 mA LDO that provides the engineer with a very stable, accurate voltage with ultra low noise and very high Power Supply Rejection Ratio (PSRR) suitable for RF applications. In order to optimize performance for battery operated portable applications, the NCV8570 employs an advanced BiCMOS process to combine the benefits of low noise and superior dynamic performance of bipolar elements with very low ground current consumption at full loads offered by CMOS.Furthermore, in order to provide a small footprint for space-conscious applications, the NCV8570 is stable with small, low value capacitors and is available in a very small DFN6 2x2.2 and TSOP-5 packages.NOTE FOR NEW DESIGNS THE NCV8570B IS RECOMMENDED IN PLACE NCV8570.