180-W: Dual-Channel: Step-Down Converter Reference Design with 97% Efficiency for Server PSU
Description
This is a reference design for server PSU: PC PSU and other step-down converter applications that implements a 180-W buck: dual-channel DC/DC converter with a regulatory 12-V DC input voltage designed to provide the terminal load voltage with greater than 97% efficiency and good thermal performance. The switching frequency synchronization between the dual channels is easily realized. The true differential remote sense of the dual outputs compensates the line voltage drop providing more accurate voltage for the terminal load. For improved high-power density and a low profile: this integrated circuit reference design uses a planar inductor to replace the traditional discrete inductor. This design has protection and temperature-sense functions.
Features
- 180-W dual output buck converterEfficiency: 96% (typ) at 180-W load; 97% (typ) at 83-W loadSwitching frequency synchronization between dual channelsDifferential remote sensing for both output channelsPlanner inductor as output inductorCompact form factor (47 mm x 59 mm) for compatibility with server PSU application
Applications
- Baseband unit (BBU)
- Merchant DC/DC
- Edge router
- Intra-DC interconnect (metro)
- Inter-DC interconnect (long-haul
- submarine)
- Core router
- Performance client
- High performance computing
- Active antenna system mMIMO (AAS)
- PC PSU & game console power unit
- Other AC/DC adapters/PSU
- Indoor backhaul
- Campus & branch switches
- Cell site gateway router
- Multi-access edge computing (MEC)
- Data center switch
- Macro remote radio unit (RRU)
Product Categories
- Power management