AN78L20 Allicdata Electronics
Allicdata Part #:

AN78L20-ND

Manufacturer Part#:

AN78L20

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Panasonic Electronic Components
Short Description: IC REG LINEAR 20V 100MA 3SSIP
More Detail: Linear Voltage Regulator IC Positive Fixed 1 Outpu...
DataSheet: AN78L20 datasheetAN78L20 Datasheet/PDF
Quantity: 1000
Stock 1000Can Ship Immediately
Specifications
Series: --
Packaging: Bulk 
Part Status: Obsolete
Output Configuration: Positive
Output Type: Fixed
Number of Regulators: 1
Voltage - Input (Max): 40V
Voltage - Output (Min/Fixed): 20V
Voltage - Output (Max): --
Voltage Dropout (Max): --
Current - Output: 100mA
Current - Quiescent (Iq): 3.5mA
PSRR: 44dB (120Hz)
Control Features: --
Protection Features: Over Current, Over Temperature
Operating Temperature: 0°C ~ 125°C
Mounting Type: Through Hole
Package / Case: TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package: 3-SSIP
Base Part Number: AN78L20
Description

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Introduction

The AN78L20 series of negative linear voltage regulators are a family of fixed negative voltage regulators offering high power dissipation and a wide input voltage range. They are extensively used in consumer applications and other types of industrial and consumer applications, where output current stability is desired.

Application Field

The AN78L20 series of linear voltage regulators has a wide range of applications. High voltage and low voltage versions are available to cover multiple supply voltages. They are commonly used in battery-powered equipment, where a stable and low output voltage is desired. They are also used in consumer and industrial applications such as mobile phones, laptop computers, set-top boxes, wearable technology, home appliances, robotics, automotive, and process control equipment.The device can be used in any application that needs a highly accurate regulated negative voltage and for the biasing of active linear devices such as operational amplifiers, comparators, and other linear circuits. They are also used in microprocessor and digital logic circuits.

Working Principle

The AN78L20 series of linear voltage regulators is based on a basic linear principle and has a series voltage regulator as its core. The series voltage regulator is basically a voltage divider with an adjustable shunt between the reference voltage and a feedback voltage.The output of the series regulator is controlled by adjusting the external shunt resistance. This is done using a single internal switching transistor in the control loop that switches the shunt resistor between two external resistors. This provides a linear voltage regulation of the output voltage, with a 1:1 regulation ratio.The AN78L20 series of linear voltage regulators features an adjustable output voltage range from 1.2V to 24V, and a wide input voltage range from 9V to 36V, making it suitable for a variety of applications. It has a wide operating temperature range of -25°C to 125°C, and it can provide up to 500 mA of output current. The device also includes a thermal shutdown feature to protect it from excessive temperatures.

Conclusion

The AN78L20 series of negative linear voltage regulators offers a wide range of features and is an excellent choice for a variety of applications. The device uses a basic linear principle and offers a highly accurate, linear voltage regulation, with a wide input voltage range and a wide operating temperature range. The device is also protected by a thermal shutdown feature and can provide up to 500 mA of output current. It is suitable for battery-powered equipment, consumer, and industrial applications, as well as microprocessor and digital logic circuits.

The specific data is subject to PDF, and the above content is for reference

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