TC1262-2.8VAB

PMIC - Voltage Regulators - Linear

TC1262-2.8VAB is an advanced version of the TC1262-2.8V linear voltage regulator family. It provides high precision output voltage regulation for cost-sensitive applications. It offers very low output voltage temperature coefficient, tight output voltage accuracy, fast transient response and low power consumption. This makes it ideal for powering ASICs, memories, video cards and other precision circuits.

Application Field

TC1262-2.8VAB can be used in a variety of general purpose and precision low-noise applications. It allows correct powering of ASICs, FPGAs, embedded microprocessors, memory controllers and other core components. It has high operating temperature range and is ideal for battery powered devices and other applications with small form factor and low noise requirements. It features low quiescent current and is highly efficient, making it suitable for applications requiring very low power consumption.

Working Principle

The TC1262-2.8VAB uses a linear voltage regulator to control the output voltage. The input voltage is applied to the non-inverting input (Vin) of the circuit and the reference voltage from the external resistor R to the inverting input (Vref). The amplifier output (Vout) is regulated by the feedback loop and compared to the reference voltage. The output voltage changes with Vin and any changes at the amplifier output will reduce the control voltage at the amplifier input, thereby adjusting the output voltage to the desired value.

The output voltage is then coupled to the power rail with a capacitor to reduce noise and increase the stability of the output voltage. The internal circuitry then isolates the ground from the output voltage and a feedback loop is provided between the output and the ground, which helps to keep the output voltage steady and gives an indication of the output voltage through the voltage divider.

The TC1262-2.8VAB is designed to provide excellent EP results when used with low-ESR capacitors. It can provide output voltage accuracy of up to 0.5% and output voltage temperature coefficient as low as 3 parts per million per °C. The power supply can support up to 1.5A of continuous current, and up to 5A of peak current.

Advantages

TC1262-2.8VAB is a very versatile voltage regulator which has a wide operating temperature range from -55C to 125C and can operate from a single supply of 2.8V to 15V. Its high tolerance to temperature, with very low output voltage temperature coefficient, makes it suitable for applications such as ASICs, FPGAs and embedded microprocessors, where high regulation and stability are required.

The TC1262-2.8VAB has an ultra-fast transient response which helps to ensure an accurate output voltage is maintained even when the input voltage is changing quickly. It also offers very low quiescent current which helps to reduce the overall power consumption of the power supply. In addition, this regulator is designed to provide a very low output voltage noise which helps to reduce the amount of electromagnetic interference generated by the power supply.

Conclusion

TC1262-2.8VAB is a precision low-noise linear voltage regulator for general-purpose and precision applications. It provides excellent noise performance, low output voltage temperature coefficient and fast transient response. The TC1262-2.8VAB can operate from a single supply, has a wide operating temperature range and is able to support up to 1.5A of continuous current. Additionally, the TC1262-2.8VAB has a very low quiescent current, helping to reduce overall power consumption.