NCV8502PDW33R2G

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The NCV8502PDW33R2G is a low dropout (LDO) linear Voltage Regulator (VR) that comes with two fixed output voltage options –3.3 V and 2.85 V and three programmed output voltage options ±3%, ±6%, and ±10% from the nominal. The NCV8502 details an operating temperature range from -40°C to +125°C and is packaged in a 3x2x1.5 mm surface mount package. The NCV8502P has a wide range of performance and features that make it suitable for applications such as industrial, personal computers, servers, battery driven products and personal communication systems.

Application Field

NCV8502PDW33R2G has a wide application field for personal electronic sectors. It is often used in high power supplies, such as cell phone chargers and laptop chargers, to provide power conversion of multiple voltages. The NCV8502PDW33R2G also find its applications in circuits that require precise voltage regulation over wide operating temperature range. NCV8502PDW33R2G’s high efficiency and low quiescent current make it an ideal choice for wide range of battery power applications.

The NCV8502PDW33R2G has a wide range of industrial applications. Its precise output voltage regulation, low quiescent current, wide temperature range and flexible programmed I2C/SMBus programming makes it well suited for applications such as networking and industrial automation. The device is also used for decentralized power systems in a wide range of industrial applications such as automotive, factory automation, building management, and process control.

In addition, NCV8502PDW33R2G also has applications in personal communication systems, such as cell phones and tablet computers. With its low output noise, high power supply rejection, low drop-out operation, and wide temperature range, NCV8502PDW33R2G is an ideal choice for most personal communication systems.

Working Principle

NCV8502PDW33R2G utilizes a voltage reference and an error amplifier to control the output voltage of the device. On the input, NCV8502PDW33R2G accepts an unregulated DC voltage and provides a linear regulated output voltage from the output pins. On the input, the device employs a low-dropout voltage regulator, to maintain a constant output voltage. The input entry can range from 5 V to 18 V for a 3.3 V output and 4.75 V to 12 V for a 2.85 V output.

The output voltage of the NCV8502PDW33R2G is controlled by two internal devices – an error amplifier and a voltage reference. The voltage reference provides a reference voltage to the error amplifier, which in turn compares it to the output voltage. Any difference between the two causes the error amplifier to adjust the current flowing through the output devices and regulate the output voltage accordingly.

The error amplifier also helps to control the quiescent current and prevent the output voltage from drooping too low during a load transient. Additionally, the device also contains a load regulation circuit to ensure both line and load regulation. Line regulation is dependent on the input voltage, whereas load regulation is determined by the current load.

The NCV8502PDW33R2G also contains an internal circuitry to protect it against overvoltage, reverse voltage, and thermal shutdown. The device also contains a soft-start circuit for preventing inrush currents and to help minimize inrush current spikes. Additionally, the device also has an enable pin, and a shutdown control logic that allows user to enable and disable the device easily.

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