MAX5024LASA+

Current - Output:	150mA
Base Part Number:	MAX5024
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	Enable, Hold, Reset
PSRR:	54dB (100Hz)
Current - Quiescent (Iq):	140µA
Series:	--
Voltage Dropout (Max):	1.5V @ 150mA
Voltage - Output (Max):	11V
Voltage - Output (Min/Fixed):	2.5V (5V)
Voltage - Input (Max):	65V
Number of Regulators:	1
Output Type:	Adjustable (Fixed)
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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Introduction

MAX5024LASA+ is a Linear voltage regulator developed by Maxim Integrated, which provides high-accuracy and low-dropout voltage regulation. It features exceptionally low quiescent current operation and low surface mount component count. Suitable applications include interfacing a 3.3V or 5.0V powered system to a higher voltage I/O supply, powering digital signal processors, powering analog/digital converters, powering a/d converters that require a 3.3V or 5.0V supply, and powering logic circuits that require a 3.3V or 5.0V supply. This article will discuss the application fields and working principle of MAX5024LASA+.

Application Fields

The MAX5024LASA+ is designed for use in a variety of different applications due to its exceptional low quiescent current operation and low surface mount component count. The most typical application of the MAX5024LASA+ is for interfacing a 3.3V or 5.0V powered system to a higher voltage I/O supply. This is done using the charge-pump voltage conversion design. The MAX5024LASA+ can also be used to power digital signal processors and logic circuits that require a 3.3V or 5.0V supply, as well as powering a/d converters that require a 3.3V or 5.0V supply. Aside from these main uses, the MAX5024LASA+ can also be used for pumps, motors, actuators, and other such power electronics that require a well regulated supply with higher than normal quiescent current. The device is also suitable for powering digital displays and microcontroller-based control systems due to its low dropout voltage and low quiescent current.

Working Principle

The MAX5024LASA+ uses a charge-pump voltage conversion design that allows it to achieve exceptionally low quiescent current operation and low surface mount component count. The charge-pump concept works by taking a capacitive load and breaking it up into two stages; an input stage and an output stage. The input stage consists of two stages, the first being a simple rectifier that rectifies the incoming AC waveform and charges a storage capacitor.The second stage rectifier is a charge pump. It uses the energy stored in the storage capacitor to create a new AC waveform that is then rectified, filtered and then used to charge another larger capacitor. This larger capacitor is then used to supply the load with the correct voltage.The MAX5024LASA+ then adjusts the voltage level by using an internal voltage regulator circuit. This regulator circuit monitors the output voltage and automatically turns on or off the second stage rectifier, if the voltage is too high or too low. This allows for precise control of the output voltage, and allows the device to maintain a very low quiescent current, even when the output voltage is varying.

Conclusion

In conclusion, the MAX5024LASA+ is a high-accuracy, low-dropout linear voltage regulator. It is suitable for many different applications due to its exceptionally low quiescent current operation, low surface mount component count, and charge-pump voltage conversion design. It is capable of providing precision control and regulation of the output voltage.

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