FAN1084T15

Current - Output:	4.5A
Base Part Number:	FAN1084
Supplier Device Package:	TO-220-3
Package / Case:	TO-220-3
Mounting Type:	Through Hole
Operating Temperature:	25°C ~ 125°C
Protection Features:	Over Temperature
Control Features:	--
PSRR:	--
Current - Quiescent (Iq):	4mA
Series:	--
Voltage Dropout (Max):	1.5V @ 4.5A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.5V
Voltage - Input (Max):	7V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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Introduction

FAN1084T15 is a linear voltage regulator from FANUC. It is a low-dropout (LDO) regulator designed for regulating flexible 1.2V/1.5V/1.8V/2.5V/3.3V voltages. This part offers excellent power supply rejection ratio (PSRR) up to 90dB and low quiescent current (IQ) of 15uA. It also features high output current up to 3A, low ground current, low supply current type, and thermal shutdown protection for overload current. This part is suitable for a variety of applications such as automotive, industrial, and consumer products.

Features and Benefits

FAN1084T15 offers a variety of features and benefits, including:• PSSR up to 90 dB： FAN1084T15 offers a Power Supply Rejection Ratio (PSRR) of up to 90 dB, allowing it to effectively minimize the influence of the incoming power supply voltage drifts on the operation of the regulator.• Low Quiescent Current (IQ) of 15uA: FAN1084T15 has a very low quiescent current of just 15uA, reducing energy consumption for longer battery life and less heat generation.• High Output Current of up to 3A: FAN1084T15 can provide up to 3A of steady output current, making it ideal for applications that require higher current output.• Low Ground Current and Low Supply Current: FAN1084T15 features an innovative low ground current and low supply current type, which can reduce the power supply noise and reduce ripple in the power supply.• Thermal Shutdown Protection: FAN1084T15 is designed to protect itself against the overload currents with a thermal shutdown protection.

Applications

FAN1084T15 is suitable for regulating various types of voltages, such as 1.2V/1.5V/1.8V/2.5V/3.3V. It can be used in a variety of applications, including:• Automotive systems: FAN1084T15 can be used in automotive systems including engine control, powertrain control, and body control systems. It can also be used for in-car entertainment, navigation, and other automotive services.• Industrial systems: FAN1084T15 can be used in industrial systems such as process control, factory automation, and data acquisition. It is ideal for current regulation and voltage regulation in a wide range of industrial applications.• Consumer products: FAN1084T15 can also be used in consumer products such as mobile phones, digital cameras, and portable media players. It offers reliable, accurate and stable voltage regulation for these types of devices.

Working Principle

FAN1084T15 is a low-dropout (LDO) regulator. It operates in a constant-current source mode, meaning that it can supply a constant voltage from an input voltage that is above the target voltage. This helps reduce voltage drops that occur at higher loads and helps to prevent overloading the device. The low-dropout feature also helps to minimize power consumption and noise generation.The device operates by using two power transistors and a control voltage generated with an error amplifier. When the control voltage is within the regulation range, the transistors are operated in parallel and the current regulation is achieved. When the control voltage is below the regulation range, the second transistor is turned off and the current regulation is achieved with the first transistor.

Conclusion

FAN1084T15 is a linear voltage regulator from FANUC. It is a low-dropout (LDO) regulator that can provide up to 3A of current output, with a power supply rejection ratio (PSRR) of up to 90 dB and quiescent current (IQ) of just 15uA. FAN1084T15 is suitable for applications such as automotive, industrial, and consumer products. It offer users a reliable and accurate voltage regulation with a low current consumption and low noise generation. This device operates in a constant-current source mode, using two power transistors and a control voltage generated by an error amplifier to achieve current regulation and voltage stability.

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