NCP565MN33T2G

The NCP565MN33T2G is a specialized linear-regulator integrated circuit (IC) used most commonly in power-management applications and voltage regulation circuits. With the incorporation of a Fixed Input, Wide Output Voltage Range and High Output Voltage Accuracy in a very small package, the NCP565MN33T2G provides a highly effective power-management solution.

Overview

The NCP565MN33T2G is a very versatile linear voltage regulator designed to provide extremely accurate and stable output voltage with a wide input voltage range of 3.0 V to 40 V. It is available in the 3-pin TO-92 package and can provide up to 200 mA of continuous output current. The output voltage is adjustable with an external reference voltage applied to the ADJ pin or disabled by connecting the ADJ pin to ground. The NCP565MN33T2G has several features to ensure reliable performance such as over-voltage, over-current and thermal protection, low output noise, low operating temperature and a maximum quiescent current (IQ) of 40 μA.

Features & Benefits

• Fixed Input Voltage Range: 3.0 V to 40 V
• Wide Output Voltage Range: 0.8 V to 19 V
• High Output Voltage Accuracy: ±0.5% (at VOUT = 5V)
• Low Output Noise: <50uVrms
• Low IQ: 40µA max.
• Over-voltage and over-current protection
• Thermal protection
• 3-pin TO-92 package

Application Examples

The NCP565MN33T2G is suitable for a variety of power-management and voltage-regulation applications such as battery-powered devices, car audio, wireless telecom, personal computers and consumer electronics. The NCP565MN33T2G can be used for step-up and step-down voltage regulation and for supplying a constant voltage to DSP and FPGA circuitry. It can also be used to generate multiple fixed and adjustable voltages from a single supply.

Working Principle

The NCP565MN33T2G is based on a linear-regulator principle typically used to regulate output voltage by controlling the amount of current allowed to pass through a series of voltage-limiting resistors. A control element is used to modify the output voltage in order to accurately regulate it to the desired level.

The NCP565MN33T2G is a 3-terminal device featuring VIN and GND pins for input voltage, and an ADJ pin for adjusting the output voltage level. The NCP565MN33T2G also has a built-in Under Voltage Lockout (UVLO) circuit that prevents the device from operating if the input voltage is below the minimum start-up threshold.

The NCP565MN33T2G also has an on-chip Shunt Reference that helps regulate the voltage by providing a reference voltage to the control element. This Shunt Reference also provides an adjustable current-limit circuit that provides extra protection from over-current conditions.

The NCP565MN33T2G also features a Low Drop Output (LDO) Voltage Regulator technology that reduces the quiescent current of the device and enhances its efficiency. The LDO technology also helps reduce power dissipation, providing longer battery life in portable devices.

Conclusion

The NCP565MN33T2G is a very compact and versatile linear voltage regulator designed for a wide range of power management and voltage regulation applications. It has a wide input voltage range of 3.0 V to 40 V, a wide output voltage range of 0.8 V to 19 V and output voltage accuracy of ±0.5%. It offers additional features such as low output noise, low operating temperature, low quiescent current, over-voltage and over-current protection, and thermal protection. Combined, these features make the NCP565MN33T2G an ideal choice for those looking for a reliable and powerful linear voltage regulator.