DATASHEET ZL9117M FN7914 Rev.7.00 Digital DC/DC PMBus 17A Module Jun 26, 2017 The ZL9117M is a 17A, variable output, step-down Features PMBus-compliant digital power supply. Included in the module Complete digital switch mode power supply is a high-performance digital PWM controller, power MOSFETs, an inductor, and all the passive components required for a Fast transient response highly integrated DC/DC power solution. This power module Auto compensating PID filter has built-in auto-compensation algorithms, which eliminate External synchronization the need for manual compensation design work. The ZL9117M operates over a wide input voltage range and supports an Output voltage tracking output voltage range of 0.6V to 3.6V, which can be set by Current sharing external resistors or via PMBus. This high-efficiency power module is capable of delivering 17A. Only bulk input and Programmable soft-start delay and ramp output capacitors are needed to finish the design. The output Overcurrent/undercurrent protection voltage can be precisely regulated to as low as 0.6V with 1% PMBus compliant output voltage regulation over line, load, and temperature variations. Applications The ZL9117M features auto-compensation, internal soft-start, Server, telecom, and datacom auto-recovery overcurrent protection, an enable option, and Industrial and medical equipment prebiased output start-up capabilities. General purpose point of load The ZL9117M is packaged in a thermally enhanced, compact (15mmx15mm) and low profile (3.5mm) overmolded QFN Related Literature package module suitable for automated assembly by standard surface mount equipment. The ZL9117M is RoHS compliant. For a full list of related documents, visit our website - ZL9117M product page Figure 1 represents a typical implementation of the ZL9117M. For PMBus operation, it is recommended to tie the Enable pin (EN) to SGND. V IN V DRV 10F 4.5V TO 13.2V 4.7F 4.7F 4.5V TO 6.5V 10F 16V 16V 16V 16V CIN POWER GOOD OUTPUT PG VIN (EPAD) V ENABLE EN OUT VOUT (EPAD) EXT SYNC SYNC ZL9117M DDC BUS SW COUT DDC (EPAD) SCL RTN SDA PGND 2 I C/SMBus (EPAD) SA R SA R SET FIGURE 1. A COMPLETE DIGITAL SWITCH MODE POWER SUPPLY, ONLY BULK INPUT AND OUTPUT CAPACITORS ARE REQUIRED TO FINISH THE DESIGN FN7914 Rev.7.00 Page 1 of 63 Jun 26, 2017 VDRV VSET VR VTRK SGND V25 FB+ FB- VDDZL9117M Table of Contents Pin Configuration 3 Pin Descriptions . 3 Ordering Information 4 ZL9117M Internal Block Diagram 4 Absolute Maximum Ratings . 7 Thermal Information . 7 Recommended Operating Conditions 7 Electrical Specifications . 7 Typical Performance Curves 9 Derating Curves 10 Functional Description 11 2 C/SMBus Communications 11 I Output Voltage Selection . 11 Soft-Start Delay and Ramp Times 11 Power-Good 11 Switching Frequency and PLL . 12 Loop Compensation . 12 Adaptive Diode Emulation 12 Input Undervoltage Lockout . 12 Output Overvoltage Protection . 13 Output Prebias Protection 13 Thermal Overload Protection 14 2 I C/SMBus Module Address Selection 14 Digital-DC Bus 14 Phase Spreading 15 Output Voltage Tracking 15 Output Sequencing 15 Fault Spreading . 16 Active Current Sharing . 16 Phase Adding/Dropping 16 2 Monitoring via I C/SMBus 17 Snapshot Parameter Capture . 17 Nonvolatile Memory and Device Security Features 17 Output Capacitor Selection 18 Input Capacitor 18 Layout Guide . 18 Package Description . 19 PCB Layout Pattern Design . 19 Thermal Vias 19 Reflow Parameters 19 PMBus Command Summary 20 PMBus Data Formats 24 PMBus Use Guidelines 24 Summary 24 PMBus Command Description 25 STORE USER ALL (15h) 26 Firmware Revision History . 59 Revision History 60 About Intersil 61 Package Outline Drawing 62 FN7914 Rev.7.00 Page 2 of 63 Jun 26, 2017