SN105125DBVRG4

SN105125DBVRG4 application field and working principle

The SN105125DBVRG4 is a Linear Voltage Regulator (LDO) integrated circuit (IC) which is designed to provide a regulated output voltage with large currents, used in a wide range of application fields and adoptable to various supply voltage ranges. This IC is designed to provide a stable output voltage even over a wide temperature range and considerable input voltage ranges, and therefore is suitable for a wide range of applications. This device is also designed to work at low current levels, making it suitable for higher-current applications such as power supply circuitry.

Specifications

• Input Voltage Range: 1.5V – 15V
• Output Voltage Range: 0-12V
• Operating Temperature Range: -50°C – +95°C
• Size: 8-Pin PDIP and 5-Pin PDIP
• Package Type: SOIC and TO-220AC
• Output Current: Up to 1A
• Line Regulation: 0.05%/V
• Load Regulation: 1%/A

Features

• Low Dropout Voltage: Low Dropout Voltage improves efficiency, reduces heat dissipation, and enhances operating flexibility
• Very Low Input Voltage Range: Allows operation in a very wide range of supply voltages
• Low Output Noise: Low Noise Output makes the LDO suitable for a wide range of audio applications
• Very Low Quiescent Current to Increase Efficiency: The Quiescent Current of the SN105125DBVRG4 is only 150 µA.
• Excellent Line and Load Regulation: Line and Load Regulation of the SN105125DBVRG4 are 0.05%/V and 1%/A respectively.

Working Principle

The SN105125DBVRG4 is a low dropout voltage regulator, meaning that it is designed to maintain a constant output voltage even at very low input supply voltages. This is the fundamental principle behind its usage and why it is suitable for a wide range of applications. The SN105125DBVRG4 converts the input voltage (between 1.5V and 15V) into an output voltage of 0 to 12V with a maximum loaded output current of 1A and a line regulation of 0.05%/V, thus allowing the output voltage to remain nearly constant over a wide range of input voltages.

The SN105125DBVRG4 has a built-in low dropout voltage of 150mV across the entire input voltage range. This feature allows the SN105125DBVRG4 to operate in a wide range of input voltages and thus offers more flexibility. This is useful in applications where the input supply voltage is not known or is subject to changes.

The SN105125DBVRG4 also features a very low quiescent current of only 150 µA, which helps to increase efficiency and reduce heat dissipation. Furthermore, this device can also be used as a battery charger, as it is capable of providing charging current up to 1A.

Applications

The SN105125DBVRG4 is suitable for a wide range of applications, such as consumer electronics, power supplies, industrial control, medical electronics, and automotive applications. Its low dropout voltage, low noise output, and excellent regulation features make it a great choice for these applications.

For consumer electronics, the SN105125DBVRG4 can be used in audio amplifiers, portable media players, digital cameras, and other consumer products. It is also suitable for use as a power supply in a wide range of industrial applications, such as automation systems, motor controls, and robotics.

Medical electronics, such as ventilator systems, patient monitors, and health care equipment, can benefit from the low noise of the SN105125DBVRG4, as well as its wide range of output currents. Additionally, automotive applications that require a reliable voltage regulator and low noise output, such as car infotainment systems and anti-lock braking systems, can benefit from the SN105125DBVRG4.

Overall, the SN105125DBVRG4 is a great choice for a wide range of applications. Its low dropout voltage and wide range of input voltages make it suitable for a variety of applications, and its low noise output and excellent regulation features make it an ideal choice for powering sensitive and mission-critical equipment.