TC1107-3.3VOA

PMIC - Voltage Regulators - Linear

The TC1107-3.3VOA is a high-performance, low-dropout, 2-A linear regulator, ideal for use in a wide range of low-noise, low-cost voltage regulator solutions. It is available in a compact, low-profile SOT-23 package and uses a lightly doped substrate for maximum power efficiency.

Features

• 2-A linear regulator
• Output voltage range, 1.8V to 5.5V
• Low dropout voltage
• Low quiescent current
• Low noise
• High ESD immunity

Applications

The TC1107-3.3VOA is ideal for applications that require low-noise, low-cost voltage regulation. It is well suited for small, low power microcontroller and memory applications, such as automotive, consumer, and industrial systems. Typical applications include voltage regulation for microprocessors, power supplies, and sequencing circuitry.

Working Principle

The TC1107-3.3VOA is a linear voltage regulator which uses a low-dropout (LDO) pass element and a feedback-loop control circuit to regulate the output voltage. The regulator operates by storing energy in an inductor and then converting it to a linear current to provide the output voltage. The feedback-loop control circuit adjusts the output voltage to match the reference voltage by changing the amount of energy stored in the inductor. The LDO pass element acts as a linear resistance, and the feedback-loop control circuit adjusts the current passing through the LDO pass element to match the reference voltage.

The TC1107-3.3VOA is designed to be used in conjunction with an external resistor and a bias network, or with a bootstrap capacitor, to provide the necessary output voltage regulation. The bias network sets the reference voltage, while the external resistor sets the operating current through the LDO pass element. The bootstrap capacitor is used to provide additional power during transient loading conditions.

Conclusion

The TC1107-3.3VOA is a high-performance, low-dropout, 2-A linear regulator that is ideal for a wide range of low-noise, low-cost voltage regulator solutions. It features a low quiescent current, low noise, and high ESD immunity, making it suitable for use in a variety of applications, including microprocessor, power supply, and sequencing circuitry.