RT9161-25GV Datasheet/PDFPMIC - Voltage Regulators - Linear
The RT9161-25GV is a linear voltage regulator for offline AC/DC applications that can be used to provide a regulated output of 25V. It is an ideal solution for a wide range of applications, from small appliances to major appliances, because of its efficient performance, low BOM cost, silent operation, and its efficient heat dissipation mechanism.
The RT9161-25GV comprises of an integrated linear voltage regulator, where its input is a rectified DC voltage, which is then converted to a stable DC output of 25V. The device also features a soft-start circuit to lower the start-up current, which also reduces the risk of surges on power-up. The regulator also has a built-in thermal protection circuit that rejects false over-temperature signals in the system. Furthermore, the RT9161-25GV has very low external components required, namely two ceramic capacitors and one resistor, making it an ideal solution when space is limited.
Application Field
The RT9161-25GV can be found in a wide range of offline AC/DC power supplies. As it requires only two capacitors and one resistor, it is an ideal solution for applications where space is limited. It can also be used in multiple half-bridge offline appliances such as air conditioning, air purifiers, and portable air conditioning units.
The RT9161-25GV is also widely used in medical equipment, as it facilitates the conversion of various AC-DC input voltages to a stable DC output of 25V. Additionally, its high efficiency also ensures less waste of energy while still delivering purposes that require a stable output voltage.
Working Principle
The RT9161-25GV is a linear voltage regulator for offline AC/DC applications. It uses the Power IC control circuit to stabilize the output voltage at the required level, by sensing the difference between the output voltage and a reference voltage. This is achieved by comparing the output voltage to a reference voltage and thereafter supplying an adjustable current to the output. When the output voltage reaches the reference voltage, the regulator compensates for this through the Power MOSFET, varying the resistance. This ensures the output is always at the predetermined level.
The current limiting and thermal protection features of the RT9161-25GV, coupled with its low external components requirements, make it an ideal solution for multiple AC/DC applications. When used in medical equipment and appliances, these features ensure safety and compliance, while providing a reliable, stable output voltage.
Conclusion
The RT9161-25GV is an ideal solution for a wide array of applications, making it an attractive choice for manufacturers of AC/DC power supplies, medical equipment, small appliances and major appliances, where space is limited and a regulated output of 25V is required. Due to its low external components requirements, thermal safety measures and current limiting features, it ensures the most reliable and safe operation of the device, whilst optimising performance.