Richtek RT8800/B Manual
Update: 01 October, 2023
The RT8800/B is Richtek's multi-phase synchronous buck controller dedicated to high-density power supply regulation. The device can implement 2, 3 buck switching stages, which operate in interleaved phase set automatically. The output voltage is regulated and controlled following the input voltage of FB pin. Such a single analog control provides a simple, flexible, wide-range and extreme cost-effective high-density voltage regulation solutions for various high-density power supply application. The RT8800/B multi-phase architecture provides high output current while maintaining low power dissipation on power devices and low stress on input and output capacitors. The high equivalent operating frequency also reduces the component dimension and the output voltage ripple in load transient. RT8800/B implement both voltage and current loops to achieve good regulation, response and power stage thermal balance. The RT8800/B apply the time sharing DCR current sensing technology newly as well; with such a topology, the RT8800/B extract the DCR of output inductor as sense component to deliver a more precise load line regulation and better thermal balance capability. Moreover, the parts monitor the output voltage for over-current and over-voltage protection; Soft-start and programmable under-voltage lockout are also provided to ensure safe and reliable operation.
Brand: RichTek
File format: PDF
Size: 535 KB
MD5 Checksum: B5521C58437A44043B48E86153554C23
Publication date: 12 July, 2012
Downloads: -
PDF Link: Richtek RT8800/B Manual PDF