True Digital PWM Controller ZSPM1025A (Single-Phase, Single-Rail) Datasheet Brief Description Benefits The ZSPM1025A is a flexible true-digital single- Fast time-to-market using off-the-shelf, optimally phase PWM controller optimally configured for use configured controller and power block with the Murata Power Solutions 25A Power Block Fast configurability and design flexibility OKLP-X/25-W12-C in smart digital power solutions. Simplified design flow and high reliability via The ZSPM1025A integrates a digital control loop, proven system design solution optimized for maximum flexibility and stability, as Reduced component count through system level well as load step and steady-state performance. In integration addition, a rich set of protection and monitoring Simplified monitoring for system power and functions is provided. On-chip, non-volatile memory thermal management 2 * (NVM) and an I C interface facilitate Pin-to-pin compatible with the ZSPM1025C and configuration. ZSPM1025D PWM controllers, enabling point-of- IDTs PC-based Pink Power Designer graphic load platform designs with or without digital user interface (GUI) provides a user-friendly and communication easy-to-use interface to the ZSPM1025A for Higher energy efficiency across all output loading communication, monitoring, and configuration of the conditions protection and sequencing features. A downloadable reference solution is available, Available Support including a graphical user interface, layout guide- lines, bill of materials, and step-by-step instructions. Evaluation Kit Reference Solution PC-based Pink Power Designer GUI Features Programmable digital control loop Physical Characteristics Advanced digital control techniques Tru-sample Technology Operation temperature: -40C to +125C State-Law Control (SLC) V : 0.35V to 3.6V OUT Sub-cycle Response (SCR) Lead free (RoHS compliant) 24-pin QFN package (4 mm x 4 mm) Improved transient response and noise immunity Protection features Over-current protection ZSPM1025A Typical Application Diagram Over-voltage protection (VIN, VOUT) ZSPM1025 Murata Under-voltage protection (VIN, VOUT) QFN 4x4 mm OKLP-X/25-W12-C Overloaded startup Current Sensing Continuous retry (hiccup) mode for fault Digital Control Loop conditions Fuse-based NVM for improved reliability Power Management Operation from a single 5V or 3.3V supply Driver (Sequencing, Protection,) Driver Optional PMBus address selection without external resistors Housekeeping and Communication 2 * I C is a registered trademark of NXP. 2016 Integrated Device Technology, Inc. 1 January 25, 2016 True Digital PWM Controller ZSPM1025A (Single-Phase, Single-Rail) Datasheet Current Sensing ZSPM1025A Block Diagram ISNSP Average Current Current Sensing Limiting ISNSN Digital Control Loop VFBP VFB PWM FLASH Adaptive Digital PWM VFBN ADC Controller LSE DAC OC Detection Sequencer OV Detection Configurable DAC OT Detection Error Handler Typical Applications Vin OV/UV Telecom Switches Detection Bias Int. Temp Current Sense Servers and Storage VREF VREFP Source Vout UV Detection Base Stations 1.8V Reg AVDD18 TEMP Analog Network Routers NVM ADDR0 HKADC CPU Core (OTP) ADDR1 Industrial Applications 1.8V Reg VDD18 VIN Digital Single-Rail/Single-Phase Supplies for Processors, GPIO SMBus Clock 3.3V ASICs, FPGAs, DSPs VDD33 Generation Reg Ordering Information Sales Code Description Package ZSPM1025AA1W 1 ZSPM1025A Lead-free QFN24 Temperature range: -40C to +125C Reel ZSPM8025-KIT Evaluation Kit for ZSPM1025A with PMBus Communication Interface Pink Power Designer GUI Kit for kit can be downloaded from the IDT web site at www.IDT.com/ZSPM1025A * This product is sold under a limited license from PowerOne, Inc. related to digital power technology as set forth in U.S. Patent 7000125 and other related patents owned by PowerOne, Inc. This license does not extend to stand-alone power supply products. 2016 Integrated Device Technology, Inc. 2 January 25, 2016 ADCVREF GPIO0 PGOOD CONTROL SDA SCL SMBALERT VDD50