ADP121-AUJZ30R7

Current - Output:	150mA
Base Part Number:	ADP121
Supplier Device Package:	TSOT-5
Package / Case:	SOT-23-5 Thin, TSOT-23-5
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	40µA
Current - Quiescent (Iq):	21µA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

ADP121-AUJZ30R7 is a linear voltage regulator integrated circuit that belongs to the PMIC (Power Management Integrated Circuit) category. It is designed with a low drop-out voltage regulator to satisfy battery-powered applications. This chip provides accurate and stable linear voltage regulation to reduce energy consumption and to extend battery life. It also features a low shutdown current consumption, allowing for efficient power management in low power applications.

Application Field

ADP121-AUJZ30R7 can be used in various application fields, designed with a wide input voltage range and low drop-out voltage. This makes it suitable for different electronic device and applications, such as portable electronic devices, computers, server, digital products, and consumer electronics.

Features

1. Operating Voltage Range from 0.9V to 4.6V
2. Low Dropout Voltage of 430mV at Iout=100mA
3. Low Quiescent Current of 300uA (Typ)
4. High Ripple Rejection of 90dB
5. Accurate Output Voltage within 2%
6. Average Efficiency of 86% at Iout=100mA
7. High Current Output of 300mA
8. High Power Save Mode (PSM) Current of 0.5uA

The features of ADP121-AUJZ30R7 make it ideal for applications that require low power, high efficiency, and accurate voltage regulation.

Working Principle

The working principle of ADP121-AUJZ30R7 is based on the concept of linear regulation. This principle of regulation allows for a voltage output that remains constant despite fluctuations in the input voltage.Linear regulation is achieved by using a series of active components, primarily resistors and transistors, along with a feedback circuit. The feedback circuit allows the output voltage to be compared to the reference voltage and adjusts the amount of current running through the regulator circuit accordingly.The linear voltage regulator works by comparing the input voltage to the reference voltage. When the reference voltage is higher than the input voltage, the regulator will draw more current and increase the output voltage. Conversely, when the reference voltage is lower than the input voltage, the regulator will draw less current and reduce the output voltage.The main advantages of linear regulation over other methods of voltage regulation are its high power saving, high efficiency, and accuracy. This makes linear voltage regulation the ideal choice for applications that require reliable, efficient, and low power solutions.

Conclusion

In conclusion, the ADP121-AUJZ30R7 is a highly efficient and accurate linear voltage regulator. It provides low power consumption, high efficiency, and high current output. The low drop-out voltage and wide input voltage range make it ideal for low voltage and handheld applications. Its working principle is based on the concept of linear regulation, making it a reliable choice for applications that require stable voltage regulation and high efficiency.

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