17mm DATASHEET ZL9024M FN8837 Rev. 2.00 Digital DC/DC PMBus 33A Module Jan 29, 2018 The ZL9024M is a 33A step-down DC/DC power supply Features module with integrated digital PWM controller, Complete digital switch mode power supply synchronous power switches, an inductor, and passives. V range: 2.75V to 4V IN Only bulk input and output capacitors are needed to finish the design. The 33A of continuous output current Programmable V range: 0.6V to 1.5V OUT can be delivered without a need of airflow or a heatsink. 2 PMBus compliant I C communication interface The thermally enhanced HDA module is capable of dissipating heat directly into the PCB. Programmable V , margining, UV/OV, I OUT OUT limit, soft-start/stop, sequencing, and external The ZL9024M uses ChargeMode control architecture, synchronization which responds to a transient load within a single switching cycle. The ZL9024M comes with a Monitor: V , V , I , temperature, duty IN OUT OUT preprogrammed configuration for operating in a pin-strap cycle, switching frequency, and faults mode output voltage, switching frequency, and device ChargeMode control architecture SMBus address can be programmed with external 1.2% V accuracy over line, load, and resistors. More configurations, such as soft-start and fault OUT temperature limits, can be easily programmed or changed using PMBus compliant serial bus interface. PMBus can be Power-good indicator used to monitor voltages, current, temperatures, and fault Over-temperature protection status. The ZL9024M is supported by PowerNavigator software, a Graphical User Interface (GUI) that can be Internal non-volatile memory and fault logging used to configure modules to a desired solution. PowerNavigator supported The ZL9024M is available in a 40 Ld compact Patented thermally enhanced HDA package 17mmx19mm HDA module with a very low profile height of 3.55mm, suitable for automated assembly by Applications standard surface mount equipment. The ZL9024M is Server, telecom, storage, and datacom RoHS compliant by exemption. Industrial/ATE and networking equipment Related Literature General purpose power for ASIC, FPGA, DSP, and For a full list of related documents, visit our website memory ZL9024M product page 9,1 9 9 7 & N 96(1 9021 & 7 =/ 0 9 & 30%XV 3.55mm Note: 1. Only input and output capacitors are required to finish the design. Figure 2. Small Package for High Power Density Figure 1. Complete Digital Switch Mode Power Supply FN8837 Rev. 2.00 Page 1 of 73 Jan 29, 2018 19mm ,QWHUIDFH 3*1 6*1 6 /57 9 6 9 59 6&/ 9 28 96(1 ,1 28 9287 ,1ZL9024M Contents 1. Overview . 4 1.1 Block Diagram 4 1.2 Ordering Information . 5 1.3 Pin Configuration 6 1.4 Pin Descriptions . 6 1.5 Typical Application Circuit . 8 2. Specifications 10 2.1 Absolute Maximum Ratings . 10 2.2 Thermal Information . 10 2.3 Recommended Operating Conditions . 11 2.4 Electrical Specifications 11 3. Typical Performance Curves 14 4. Functional Description 16 4.1 SMBus Communications . 16 4.2 Output Voltage Selection . 16 4.3 Soft-Start Delay and Ramp Times 17 4.4 Power-Good . 17 4.5 Switching Frequency and PLL . 17 4.6 Loop Compensation . 18 4.7 Undervoltage Lockout (UVLO) . 18 4.8 SMBus Module Address Selection . 18 4.9 Output Overvoltage Protection 19 4.10 Output Prebias Protection 19 4.11 Output Overcurrent Protection . 20 4.12 Thermal Overload Protection 20 4.13 Digital-DC Bus . 20 4.14 Phase Spreading . 20 4.15 Output Sequencing . 21 4.16 Fault Spreading 21 4.17 Temperature Monitoring Using the XTEMP Pin 21 4.18 Monitoring Using SMBus . 22 4.19 Snapshot Parameter Capture . 22 4.20 Non-Volatile Memory 22 5. PCB Layout Guidelines 23 6. Thermal Considerations . 25 6.1 Package Description 25 6.2 PCB Layout Pattern Design . 25 6.3 Thermal Vias 25 6.4 Stencil Pattern Design . 25 6.5 Reflow Parameters . 26 FN8837 Rev. 2.00 Page 2 of 73 Jan 29, 2018