NCP694DSAN08T1G

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NCP694DSAN08T1G, from ON Semiconductor, is an adjustable, low-dropout voltage regulator, featuring an output voltage accuracy of 1%.

This voltage regulator is available in a TO-252 (3M) package with a 1.2A low drop-out voltage (LDO) and is specified over a wide input voltage range of 2.7V to 45V. It offers short-circuit protection, reverse-current protection, and output-overcurrent protection. It utilizes an ECOPACK® package, designed to minimize waste and costs while improving efficiency and safety, achieved through increased thermal and electrical performance.

Application Field of NCP694DSAN08T1G

As a PMIC - Voltage Regulators - Linear, the NCP694DSAN08T1G is suitable for applications like automotive and industrial equipment, incorporating a wide range of products for very low power applications, such as ASICs, DSPs, and low power microprocessors (or microcontrollers). Automotive applications include traffic light control systems; safety systems, like electronic stability programs; security systems such as passive entry systems, and comfort and convenience systems, like climate control and audio systems.

Industrial applications include medical systems such as medical instruments, and energy systems such as wind turbines, home energy management systems, and solar energy power supplies. The NCP694DSAN08T1G can also be used in consumer equipment such as mobile devices, digital media players, and digital cameras.

Working Principle of NCP694DSAN08T1G

At the heart of the circuit, the NCP694DSAN08T1G features an adjustable shunt-mode, low-dropout regulator. The NCP694DSAN08T1G operates in a buffered reference mode, controlled by a shunt device, allowing a output voltage range of 1.2V to 36V. In addition, it features a temperature range of -40°C to 125°C.

The NCP694DSAN08T1G has a low input current, so it can be used in a circuit with a low current-sense resistor value. The switching frequency of the NCP694DSAN08T1G is fixed at 400 kHz, eliminating acoustic noise and minimizing input ripple.

The NCP694DSAN08T1G is based on an adjustable shunt-mode topology with an operating current of 7 mA. It is a voltage-mode controller, with a constant switching frequency, but the output voltage can be digitally adjusted. The NCP694DSAN08T1G uses a 0.2 ohm sense resistor, allowing a simplified setting of output voltage.

The NCP694DSAN08T1G utilizes a low on-resistance FET to minimize losses and improve energy efficiency. The NCP694DSAN08T1G also features under-voltage lockout protection, over-voltage protection, output over-current protection, output over-temperature protection, and reverse current protection.

The NCP694DSAN08T1G is highly reliable and ensures excellent performance over a wide range of temperature. In addition, it offers high efficiency over a wide input voltage range enabling low power consumption.

Conclusion

The NCP694DSAN08T1G adjustable shunt-mode, low-dropout voltage regulator is a linear voltage device, designed for automotive and industrial applications. This device offers short-circuit protection, reverse-current protection, and output-overcurrent protection, as well as an ECOPACK® package, designed to minimize waste and costs while improving efficiency and safety. It also has a fixed switching frequency of 400 kHz, eliminating acoustic noise and minimizing input ripple.

Overall, the NCP694DSAN08T1G is an excellent low-dropout voltage regulator, delivering reliable results and excellent performance over a wide temperature range with low power consumption.

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