Click here for production status of specific part numbers. MAX20754 Dual-Output, Configurable Multiphase Power-Supply Controller with PMBus Interface and Internal Buck Converter General Description Benefits and Features The MAX20754 is a PMBus-compatible, dual- Versatile and Flexible Controller output, configurable multiphase power-supply controller for Generates Up to Six PWM Signals communication and networking applications. The Single- or Dual-Voltage Output with Flexible Phase controller is optimized for use with Maxims Dual Assignment Powertrain integrated power stages, which support a 0.5V to 2.0V Output-Voltage Range wide range of output current and voltage requirements. (MAX20754ETMA1+) The controller generates six pulse-width modulated 0.25V to 2.0V Output-Voltage Range outputs, or phases. The number of phases per output (MAX20754ETMA2+) channel is configurable to support high current require- 4.5V to 16V Input-Voltage Range ments and one or two output voltages. 300kHz to 800kHz Switching Frequency Range This highly versatile controller also includes an integrated High-Power Density in a Small Overall Solution Size switching regulator that supplies power for both the Supports Coupled-Inductor Technology controller and the power-stage devices. The controller Advanced Modulation Scheme Improves Transient features accurate load-current reporting, power-stage Response temperature monitoring, fault detection, and extensive High-Loop Bandwidth Reduces Output- PMBus-command support. The controller allows the Capacitance Requirements user to save desired PMBus parameters to nonvolatile 48-Pin (7mm x 7mm) TQFN Package memory. Phase-Current Steering for Thermal Balancing Efficient Integrated Internal Switching Regulator The controller can be used with traditional discrete Powers Controller and Power Stages inductors, or with coupled-inductor topologies. Coupled inductors reduce the effective inductor value and size Simple System Configuration without increasing ripple current, reducing required output Four External Resistors Set Output Voltage, Bus capacitance, and improving transient response. Address, Switching Frequency, and Current Limit The MAX20754 uses Maxims advanced modulation Comprehensive PMBus Configuration, Control, and scheme (AMS) to provide improved transient response Telemetry and reduce the required output capacitance compared Compatible with PMBus Standard, Revision 1.3 to conventional pulse-width modulation (PWM) control. 10kHz to 1MHz Bus Speed The AMS can be disabled if strict fixed-frequency PWM PMBus Command Settings Stored in Nonvolatile operation is desired. Memory Accurate Current, Voltage, and Temperature Applications Reporting Communication, Networking, Servers, and Storage Equipment Ordering Information appears at end of data sheet. ASICs, DSPs, and FPGAs Microprocessor Chipsets DDR Memory PMBus is a trademark of SMIF, Inc. Dual Powertrain is a trademark of Maxim Integrated Products, Inc. 19-8090 Rev 6 5/19MAX20754 Dual-Output, Configurable Multiphase Power-Supply Controller with PMBus Interface and Internal Buck Converter Basic Application Circuit PWM2 CS2 POWER STAGE PMBUS SYSTEM COUPLED MANAGEMENT INDUCTOR PWM4 CONTROLLER CS4 POWER STAGE PWM1 CS1 POWER STAGE COUPLED PWM3 INDUCTOR MAX20754 CONTROLLER CS3 POWER STAGE TS1 PWM5 CS5 POWER STAGE COUPLED INDUCTOR PWM0 CS0 POWER STAGE TS2 Maxim Integrated 2 www.maximintegrated.com