Richtek

RT9017-20GBR

RT9017-20GBR Description

The RT9017-20GBR is a fixed output linear regulator designed by Richtek USA Inc., a leading manufacturer in the power management integrated circuit (PMIC) domain. This regulator is engineered to deliver a stable 2V output voltage with a maximum input voltage of 5.5V. It is capable of providing a continuous output current of 500mA, making it suitable for a variety of low-power applications. The RT9017-20GBR features a low dropout voltage of 0.38V at 500mA (typical), ensuring efficient power conversion even at low input-to-output voltage differentials. It is housed in a compact SOT23-5 package, ideal for space-constrained designs.

RT9017-20GBR Features

• Output Type: Fixed at 2V, ensuring a stable and reliable power supply for downstream components.
• Input Voltage Range: Up to 5.5V, providing flexibility in input power sources.
• Output Current: Capable of delivering up to 500mA, sufficient for powering small to medium-sized electronic devices.
• Low Dropout Voltage: 0.38V at 500mA (typical), enhancing efficiency in low-margin applications.
• Quiescent Current: Only 130 µA, minimizing power consumption during idle states.
• Power Supply Rejection Ratio (PSRR): Ranging from 60dB at 100Hz to 30dB at 10kHz, ensuring excellent noise filtering capabilities.
• Control Features: Includes an enable pin, allowing for dynamic control of the regulator's operation.
• Protection Features: Over-current and over-temperature protection ensure robustness and reliability in various operating conditions.
• Compliance: ROHS3 compliant and REACH unaffected, meeting stringent environmental and regulatory standards.
• Mounting Type: Surface mount, compatible with modern PCB assembly processes.
• Moisture Sensitivity Level (MSL): Level 3 (168 hours), ensuring reliability in humid environments.

RT9017-20GBR Applications

The RT9017-20GBR is well-suited for a range of applications requiring a stable and efficient power supply. Its low dropout voltage and compact form factor make it ideal for battery-powered devices, portable electronics, and IoT modules where space and power efficiency are critical. The regulator's fixed 2V output and 500mA capability are particularly beneficial for powering microcontrollers, sensors, and other low-power peripherals. Its enable feature allows for dynamic power management, making it suitable for applications that require power sequencing or sleep modes.

Conclusion of RT9017-20GBR

The RT9017-20GBR stands out as a reliable and efficient linear regulator, offering a balance of performance and flexibility. Its low dropout voltage and low quiescent current make it an excellent choice for applications where power efficiency is paramount. The inclusion of over-current and over-temperature protection ensures robustness, while the enable control feature provides additional design flexibility. Despite its obsolete status, the RT9017-20GBR remains a viable option for existing designs and can be a valuable component in the power management arsenal of engineers working on compact, low-power electronic systems.