参考设计
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60A 2-Phase PMBus Synchronous Buck Converter Reference Design
PMP10000: This design is for a 60A 2-phase Synchronous Buck Converter, incorporating the TPS40428 PMBus driverless PWM controller and the CSD95372B Smart Power Stage. The design accepts a 10V to 14V input, and provides a 1V at 60A output. The PMBus design enables programming, configuration, control, sequencing, voltage margining, Adaptive Voltage Scaling (AVS), and accurate current, voltage and temperature monitoring of high-power ASIC power supplies in Enterprise Storage/NAS/SAN, Ethernet Switches, Optical Networks, and Base Stations.
Sepic with Adjustable Output Voltage and Input Current Limit Reference Design
PMP10151: This reference design provides an adjustable output voltage between 20V and 25V and an input voltage range of 10V to 14V. It also provides the functionality to limit the input current of the converter between 70mA and 135mA. The adjustable values are set by a VID interface which is either discrete or integrated.
PMBus Controlled Voltage Regulator for Enterprise Storage SSD ASIC Controller Reference Design
PMP9703: The PMP9703 reference design uses the TPS53915 12A PMBus SWIFT step down converter to provide complete voltage regulation, and system protection of an Enterprise Storage SSD Controller ASIC typically used to control and expand traffic flow in/out of SSDs. The output voltage can be dynamically adjusted in +/- 0.75% steps with a total range of +/-22% of the nominal output voltage (VOUT_ADJUST and VOUT_MARGIN used together) and with programmable step change durations of as little as 4us. The PMBus capability includes adjustment of the typical power supply parameters and monitoring of FAULTs through the STATUS_WORD PMBus command. This PMBus design is ideal for applications that require design flexibility, reduced component count, and Adaptive Voltage Scaling for enhanced performance and optimized power dissipation.
12Vinput 1.2V/10A High Power Density, PMBus Step-Down DC-DC Converter Reference Design
PMP10961: The PMP10961 is a high power density, 10A buck converter with PMBus interface. The layout is optimized for small form factor utilizing both sides of board and fits in a 0.6"x0.78" area. It enables 86.5% efficiency at 10Vin, 1.2V/10Aout, 400kHz. Due to DCAP3 control mode, it also provides fast load transient response within +/-1.5%, minimizing output capacitors . PMBus interface enables output voltage adjustment, soft-start, power-on delay, switching frequency, UVLO and fault reporting.
High Efficiency, 24Vin, Synchronous Buck Converter with PMBus for Industrial Bus POL Applications
PMP11220: The PMP11220 reference design is a high efficiency, high power density, PMBus synchronous buck converter design for programming, and margining the power supply including output voltage. With a nominal input of 24V meant for industrial bus applications, this design allows for programmable output voltages and minimal power loss, all in a small board space. DCAP2 control mode requires no loop compensation, enabling ease of design, while offering ultra-fast load transient response and use with all MLCC output caps.
High Density 4A DC-DC Buck Converter with PMBus Interface Reference Design
PMP11140: The PMP11140 reference design shows 1.8V 4A (3A without fan) for CPU I/O and other applications in a 22 cm by 12.5 cm single sided footprint. Control allows external synchronization to allow improved management of system noise. A rich Test Interface is provided including an on board dynamic load.
High Density 200 A (255 A Peak) 6 Phase DC-DC Buck Converter with PMBus Interface Reference Design
PMP9738: Advanced DCAP+ control is used to provide the high speed dynamic control needed for CPU, Memory and ASIC applications. Six high current synchronous power stages provide the high currents and low losses needed for these applications. Multi-phase also allows output ripple cancellation and effective higher bandwidth control for a given switching frequency. PMP9738 focuses on ease of electrical testing and ability to make changes "on the fly" thru the PMBus interface. On board bias supplies and a high speed dynamic load round out the rich test interface.
High Density 600mV 200 A 5-6 Phase DC-DC Buck Converter with PMBus Interface Reference Design
PMP10393: Advanced DCAP+ control is used to provide the high speed dynamic control needed for CPU, Memory and ASIC applications. Up to six high current synchronous power stages provide the high currents and low losses needed for these applications. Multi-phase also allows output ripple cancellation and effective higher bandwidth control for a given switching frequency. PMP10393 has same hardware as 1.0V PMP9738 but demonstrates operation at 600mV output up to 200 A off 12V input. Fixed on time mode and reduced switching frequency at 600mV help reduce losses and improve thermal balance between FETs. Testing at 120A output with 3 & 4 phases and lower cost Power Stage also included. Design focuses on ease of electrical testing and ability to make changes "on the fly" thru the PMBus interface. On board bias supplies and a high speed dynamic load round out the rich test interface.
High Density 900mV 220 A 6 Phase DC-DC Buck Converter with PMBus Interface Reference Design
PMP11208: PMP11208 has same hardware as 1.0V PMP9738 and 0.6V PMP10393 but demonstrates operation at 900mV output up to 240 A off 11V, 12V and 13V inputs. While the design is in quasi fixed frequency mode for 1.0Vout and in fixed on time mode for 600mVout, it can be in either mode at 900mVout depending upon load and actual Vin. Testing focused upon detailed static and dynamic loading in and between both modes to show a seamless transition between the two modes.
1V @ 30A Integrated FET with PMBus Reference Design
PMP9008: PMP9008 is designed using the TPS544C20 to generate low voltage point of load outputs up to 30A. The design is a very compact form factor sync buck with integrated FETs. The controller also offers PMBus comands for telemetry and monitoring. The efficieny is over 85% for almost the entire load range. DCap control makes the compensation easy and the transient response very fast.
