AN79L04

Current - Output:	100mA
Base Part Number:	AN79L04
Supplier Device Package:	3-SSIP
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	55dB (120Hz)
Current - Quiescent (Iq):	5mA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	-4V
Voltage - Input (Max):	-35V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Negative
Part Status:	Obsolete
Packaging:	Bulk

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Introduction

The AN79L04 is a Linear Voltage Regulator from integrated power management products (IPM) from PMIC (Power Management ICs). Traditional linear voltage regulators generally cannot provide significant power for portable devices, and the AN79L04 voltage regulator attempts to address this issue by creating an integrated, low-noise and low-dropout (LDO) solution.

Application Fields for AN79L04

The AN79L04 can be used in a number of application fields and is optimized for power management solutions that require a low current and output noise level. This regulator can therefore be used in a wide variety of portable devices such as mobile phones, digital cameras, and even media players. Moreover, the AN79L04 can be used in other applications where a low current and output noise level are important, such as medical devices, LCD/plasma displays, and active filters.

Working Principle of the AN79L04

The AN79L04 is essentially a linear regulator that regulates the input voltage by using the concept of negative feedback. This regulator works by sensing the output voltage and comparing it to a reference voltage, which is usually fixed in these types of regulators. By comparing the two voltages, the regulatorwill adjust its internal impedance accordingly, creating a balance between the two voltages. This process, when repeated continuously, will create a steady output voltage.

Advantages and Disadvantages of the AN79L04

The AN79L04 has a number of advantages, such as its low quiescent current, low dropout voltage, and its low noise level. This makes it ideal for applications such as portable devices, where a low power draw and reduced noise are crucial. One potential disadvantage of the AN79L04 is its limited output current as compared to other linear voltage regulators.

Conclusion

The AN79L04 is an ideal solution for applications that require low current, low dropout voltage, and low noise levels. Its low-power draw and low-noise characteristics make it well-suited for portable devices such as mobile phones and digital cameras, as well as other applications. The main disadvantage of the AN79L04 is its limited output current as compared to other linear voltage regulators. However, this may not be an issue in most cases, and the AN79L04 can provide a reliable and efficient voltage regulation solution for many different applications.

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