RT9161A-33GV

The RT9161A-33GV is a linear voltage regulator that belongs to the family of Power Management Integrated Circuit (PMIC) - Voltage Regulators - Linear. It offers a low dropout voltage, high PSRR and low noise feature. This product is suitable for many applications. Its main function is to provide stable voltage output, even in conditions with extreme temperature, supply voltage change and heavy loading.

Features of RT9161A-33GV

• Total supply current in active mode of 400mA
• Output voltage of 3.3V
• High PSRR 65dB @1KHz
• Programmable soft start current
• Over-temperature protection
• Over-voltage protection
• Short-circuit protection

Applications of RT9161A-33GV

The versatile linear voltage regulator of RT9161A-33GV is suitable for a variety of applications and industries. These includes:

• Telecommunications
• Computer peripherals
• Consumer electronics
• Industrial control
• Other high-performance applications

The Working Principle of RT9161A-33GV

The RT9161A-33GV is based on the inverting buck-boost topology. It utilizes an input voltage range from 2.5V to 5.5V to provide a fixed output voltage of 3.3V. The internal P channel and N channel MOSFETs act as switches which are operated via an internal control block.

It dynamically adjusts the input voltage provided to the output voltage to maintain a 3.3V output. When the input voltage rises above 3.3V, the P channel switch is enabled, allowing energy to be stored in the inductor and the output capacitor. When the input voltage drops below 3.3V, the N channel switch is enabled, allowing energy to be extracted from the components and maintaining a 3.3V output voltage.

Conclusion

The RT9161A-33GV linear voltage regulator is a versatile device suitable for a variety of applications. It utilizes an inverting buck-boost topology to provide a fixed output voltage of 3.3V with an input voltage range from 2.5V to 5.5V. It is an ideal solution for applications requiring a stable output voltage tone despite rough operating conditions.