TPS7250QP

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TPS7250QP Linear Voltage Regulator

The TPS7250QP is a linear voltage regulator for use in various PMIC (Power Management IC) applications. It is a low-cost, low-power alternative to buck regulators, and provides excellent power delivery and low noise. The TPS7250QP is a special high-efficiency regulator which can maintain a precise output voltage over a wide input voltage range with no noise and minimal signal degradation.

Technical Specifications

• Input Voltage Range: 4.5V to 16V.
• Output Voltage Range: 0V to 8V.
• Current Limit: 0.2A.
• Load Regulation: 0.01%.
• Ripple/Noise: 0.2mV.
• Output Voltage Accuracy: ±0.2mV.
• Power Dissipation: 30mW.

Features

• Low-noise linear regulator.
• High accuracy.
• Low quiescent current.
• High efficiency.
• Low output voltage ripple.

Applications

• Smartphones.
• Portable media players.
• Personal digital assistants (PDAs).
• Portable gaming devices.
• Digital cameras.
• Internet of Things (IoT) devices.

Working Principle

The TPS7250QP linear regulator works by detecting the input voltage, then comparing it with the reference voltage. If the difference between the two voltages is greater than the voltage reference, the regulator turns on. When the difference drops below the reference voltage, the linear regulator turns off, thus maintaining a steady output voltage.

The regulation process is facilitated by the integrated transconductance amplifier, which acts as an error amplifier that amplifies the difference between the input and output voltages. The amplifier is capable of controlling the width of the output voltage pulse, and thus the desired output voltage.

The TPS7250QP is designed to provide a precise output voltage with minimal noise. To achieve this, it requires a high-impedance output filter, which is integrated onto the regulator. This filter reduces output noise and prevents the output voltage from oscillating.

Conclusion

The TPS7250QP is a low-cost, low-power linear regulator for various PMIC applications. It provides excellent power delivery and low noise, and its low-dropout feature allows for efficient operation. Its high accuracy and low output voltage ripple ensures a stable output voltage, and it is integrated with a high-impedance output filter to reduce noise and prevent output voltage oscillation. The TPS7250QP is an excellent choice for low-noise, high-efficiency voltage regulation.

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