MP20045DN-33-LF

PMIC - Voltage Regulators - Linear

The MP20045DN-33-LF is a low quiescent current, low-dropout linear regulator for microprocessor systems and other high-precision, low-noise applications. It features an extremely wide input voltage range and is capable of regulating output voltages down to 2.5V, with a minimum operating current of only 2mA. The MP20045DN-33-LF is available in both a through-hole and a surface-mount package.

Application Field

The MP20045DN-33-LF is ideal for microprocessor systems requiring low quiescent current and low noise operation. It is also suitable for applications that require low dropout voltage, such as mobile communication devices, personal digital assistants, point-of-sale terminals, and other consumer electronics. The MP20045DN-33-LF can deliver up to 1.4A of continuous output current and is also capable of delivering up to 3A of peak current.

Working Principle

The MP20045DN-33-LF is a low-dropout, linear regulator featuring an internal P-channel pass transistor. The amplifier is powered from an external voltage source, usually a battery, and the control voltage is derived from the regulated output voltage. The input voltage is compared to the output voltage by the amplifier and the difference sets the base current of the pass transistor. The output voltage is regulated by controlling the base current of the pass transistor and keeping the output voltage constant while the load current and input voltage vary.

Conclusion

The MP20045DN-33-LF is an excellent choice for microprocessor systems and other high-precision, low-noise applications. It features an extremely wide input voltage range and is capable of regulating output voltages down to 2.5V, with a minimum operating current of only 2mA. The MP20045DN-33-LF is a low-dropout, linear regulator featuring an internal P-channel pass transistor and is capable of delivering up to 1.4A of continuous output current and up to 3A of peak current.