FAN2501S26X

Current - Output:	100mA
Base Part Number:	FAN2501
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature
Control Features:	Enable
PSRR:	43dB (120Hz)
Current - Quiescent (Iq):	50µA
Series:	--
Voltage Dropout (Max):	0.14V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.6V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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FAN2501S26X Application Field and Working Principle

Introduction

The FAN2501S26X is a linear voltage regulator specifically designed for applications that need to filter and regulate input voltages of 3.5V to 11V. It has a 0.2V max dropout voltage and drive up to 1A output current. It can help to ensure the system stability even when operating with extreme environmental conditions. This voltage regulator is suitable for Electronic Control Unit (ECU), automotive, and industrial applications.

Features

The FAN2501S26X linear voltage regulator features:

• Input voltage range of 3.5V to 11V
• Low quiescent current of 1.6mA
• Max output current of 1A
• External shutdown function
• Reset output low logic delay for 0.25ms
• Advanced protection circuits
• Over-current protection
• Over-temperature protection
• Robust structure for extended usage life

Application Field

The FAN2501S26X is a cost-effective and reliable solution for many applications. It is commonly used for Electronic Control Units (ECUs), automotive, and industrial applications. With the input voltage range of 3.5V to 11V, it is suitable for applications like motor control, power management, electronic power switch, and power regulators in automotive systems. It can also be used in portable electronic devices, such as digital cameras and mobile phones.

Working Principle

The FAN2501S26X is a linear voltage regulator which draws an output current which is proportional to the input voltage and the current load applied to the load. This regulator consists of control circuits, power transistors, and current limiting circuits that are activated when the output current is greater than 1A. When the system is in a steady state, the current through the regulator is determined by the load on the output. The regulator will also draw quiescent current which is set by resistors connected to the base of its input transistor. The input voltage is connected to the base of the external P-MOSFET, and the collector of the transistor is connected to the output voltage. The output voltage is then regulated by the control circuits, with the voltage applied to the drain of the transistor being adjusted accordingly. When the output current reaches 1A, the current limiting circuit will take over and reduce the output voltage in order to prevent any further overload.

Conclusion

The FAN2501S26X linear voltage regulator is an efficient, cost-effective solution for many applications. It can be used in automotive and industrial applications that need to filter and regulate input voltages from 3.5V to 11V. The current limiting circuit incorporated in the regulator leads to excellent protection against overloads, and external shutdown functions also make it suitable for a wide range of applications.

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