FAN1086D33X

Voltage Dropout (Max):	1.5V @ 1.5A
Base Part Number:	FAN1086
Supplier Device Package:	D-PAK (TO-252)
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	25°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	72dB (120Hz)
Current - Output:	1.5A
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	7.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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FAN1086D33X Application Field and Working Principle

Introduction

FAN1086D33X is a Low-Dropout (LDO) linear voltage regulator, integrated with a microprocessors, designed to maintain product performance and reliability. The voltage regulator is rated for operation up to 3.3V with 5V or 12V input. It is designed to ensure the microprocessor can perform its functions reliably without the concerns of external power noise and rapidload changes.

Application field

FAN1086D33X can be found in a broad range of applications, including computer systems and peripheral devices, consumer electronics, industrial equipment, automotive and mobile phones.In computer systems, FAN1086D33X is used to provide clean and reliable voltage supply to high performance microprocessors. These devices provide excellent load and line regulation to ensure that the microprocessors always receive a consistent voltage supply, even in scenarios where the power may fluctuate rapidly or have noise on the line.In consumer products, such as smart TVs and home appliances, FAN1086D33X is used to provide a stable voltage to integrated circuits, ensuring that the circuits perform their functions reliably and efficiently.In industrial equipment, FAN1086D33X is used to ensure that sensitive circuits, such as in machines and control systems, operate correctly and safely.Finally, mobile phones, PDAs, and portable media players also use FAN1086D33X as an efficient and reliable supply of power to their integrated circuits.

Working Principle

FAN1086D33X consists of an N-Channel Transistor and two P-Channels. The N-Channel Transistor acts as a pass-MOSFET to switch the input voltage to the output voltage through the two P-Channels. The two P-Channels act as a voltage regulator. The two P-Channels sense the output voltage through a feedback path and adjust their operating voltage to maintain the output voltage constant. The N-Channel Transistor is thermosonic and its resistance is temperature dependent. As the temperature of the N-Channel Transistor increases, the resistance of the transistor also increases and consequently the load current decreases. This ensures that the output voltage does not exceed the rated voltage.The FAN1086D33X also has an external component, the output capacitor, which is used to buffer the load current. This capacitor will supply the load current during periods of peak power demand or when the supply voltage is low. Finally,the FAN1086D33X is designed to be low dropout (LDO), allowing the microprocessor to operate efficiently with a supply voltage that is as low as 1 Volt below the output voltage, however it is important to note that higher input voltage and higher output current employ more work of the LDO.

Conclusion

FAN1086D33X is a voltage regulator designed for a wide range of applications, from computer systems to mobile phones. It is designed to maintain a consistent output voltage, despite wide variations in the input voltage and rapid changes in the load current. It consists of an N-Channel transistor and two P-Channel MOSFETs and has an external output capacitor to buffer the load current. The FAN1086D33X is a low dropout (LDO) regulator and can operate efficiently with a input voltage that is as low as 1V below the output voltage.

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