REG104FA-A/500E3

Current - Output:	1A
Base Part Number:	REG104-5
Supplier Device Package:	DDPAK/TO-263-5
Package / Case:	TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	65dB (120Hz)
Current - Supply (Max):	1.8mA
Current - Quiescent (Iq):	0.7mA
Series:	--
Voltage Dropout (Max):	0.58V @ 1A
Voltage - Output (Max):	5.5V
Voltage - Output (Min/Fixed):	1.295V
Voltage - Input (Max):	15V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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PMIC - Voltage Regulators - Linear

REG104FA-A/500E3 is a voltage regulator designed with the use of advanced technology. This voltage regulator has wide range of applications in various fields. This linear regulator has the potential to reduce power consumption, size ,heat dissipation and cost of the system in which it is used. In this article, we will discuss about its application field and principles along with its features and benefits.

Application Field:

REG104FA-A/500E3 has tremendous potential to provide excellent Output Voltage performance with tight line and load regulations. This regulator is available in the form of an integrated circuit. This voltage regulator can be applied in various applications like medical and healthcare equipment, power supplies , AC/DC adaptor and switching power supplies. It is used in portable, battery-operated and high-power devices. It is used in various industrial and automotive applications. Its a suitable alternative to SMPS to ensure low ripple, low current pulsations over a wide range of load and line conditions.

Features and Benefits:

• It provides low dropout voltage and low quiescent current as well as high-sourcing current.
• It has wide input voltage range.
• It provides high efficiency and fast response time.
• It uses special architectures to prevent the current mode from oscillating.
• It has high power semiconductor transistor.
• It has discharge pin to reduce the inrush current.

Working Principles:

The REG104FA-A/500E3 is based on a three-terminal linear regulator which consists of a reference voltage, a pass transistor and an error amplifier. The reference voltage is generated by a Zener diode that has a reference voltage. The reference voltage is fed to the inverting input of the error amplifier. The output of the error amplifier is connected to the base of the pass transistor which is an NPN transistor. The base is connected to the output voltage which is adjusted by the potentiometer. When the output voltage changes, the error amplifier will detect the output voltage and generate a correction signal. This signal is amplified by the error amplifier and the pass transistor will increase or decrease the current depending upon the feedback voltage. The output voltage then adjusted according to the feedback voltage.

Conclusion:

REG104FA-A/500E3 is a linear voltage regulator suitable for various applications. It offers high efficiency, fast response, low power consumption and cost. Its working principle is based on a three-terminal linear regulator and consists of a reference voltage, a pass transistor and an error amplifier. This regulator has the potential to reduce power consumption, size, heat dissipation and cost of the system in which it is used.

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