REG104FA-2.5KTTT

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REG104FA-2.5KTTT refers to a three-terminal, adjustable linear voltage regulator integrated circuit (IC). Designed by Texas Instruments, this PMIC belongs to the family of linear voltage regulators and is used to regulate output voltage in different applications. This device is ideal for supplying power to circuit systems where output voltage adjustments is needed.

General Features

• Output Voltage Range: 2.5V
• Output Current Rating: 1A
• Output Voltage Tolerance: ±1.5%
• Maximum Line Regulation: ±4 mV
• Maximum Load Regulation: ±35mV
• Thermal Shut Down: 140°C
• Dropout Voltage: 2.05V
• Operating Temperature Range: -40°C to 125°C

Applications

The REG104FA-2.5KTTT is extremely versatile and suitable for many different applications, including portable products and systems powered by rechargeables. It is often used in portable and memory/LED back-lighting systems such as cell-phones, PDAs, digital cameras, and camcorders. Other applications include powering notebook CPUs, game consoles, optical transceiver modules, and HDDs. This device is also suitable for a wide range of communication products including residential gateways, set-top boxes, and VOIP products.

Device Working Principle

The REG104FA-2.5KTTT IC is a three-terminal linear voltage regulator that functions through the principle of voltage control. It uses two external resistors to control the output voltage of the circuit. When the Vin (input voltage) is higher than the Vadj (output voltage), a current flows from the external resistor R2, causing the voltage across R2 to rise and a voltage drop across R1. This voltage drop is compared to the reference voltage on the Adj (adjust) pin and the error is amplified by the error amplifier. The amplified error signal is then used by the control circuitry to adjust the internal series pass transistor and thus regulate the output voltage.

Device Functions

The REG104FA-2.5KTTT linear voltage regulator includes several features to ensure reliable, efficient operation. These include high efficiency over a wide range of input and output voltages, low dropout voltage, thermal shut down, and high output current capability. It also has a low quiescent current, which is important for powering low-power devices, as well as a fast transient response, which helps reduce output voltage ripple. In addition, the device features short circuit protection and current limiting, both of which help protect against damage to the device and circuit components, and also help ensure safe, predictable operation.

Conclusion

The REG104FA-2.5KTTT is a powerful, feature-rich PMIC designed for a variety of applications. Its low quiescent current, wide operating temperature range, output current rating, and its ability to precisely regulate output voltages make it an ideal choice for powering a wide range of products and systems. Furthermore, it has several functions designed to help ensure safe and reliable operation, as well as long-term reliability and durability. With such impressive capabilities and features, the REG104FA-2.5KTTT is an excellent choice for powering applications where a precise output voltage is required.

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