True Digital PWM Controller (Single-Phase, Single-Rail)

IDT's ZSPM1025A single-phase digital PWM controller is optimally configured for use with the Murata Power Solutions 25A Power Block OKLP-X/25 and provides a quick route to proven, high-performance smart digital power solutions. The ZSPM1025A PWM controller integrates a digital control loop optimized for ultra-fast transient response, steady-state performance, stability and design flexibility. For improved system reliability, a rich set of protection and monitoring functions is provided. The ZSPM1025A features user-selectable, preconfigured compensators in the digital control loop optimized for use with the Murata Power Solutions 25A power block. IDT's easy-to-use Pink Power Designer™ software enables solutions that have fully customizable output voltage and output capacitance. PMBus™ digital communications is available for monitoring, configurable protection and sequencing. A downloadable reference solution is available, including a graphical user interface, layout guidelines, bill of materials and step-by-step instructions. It is ready to be immediately implemented in the application design.


  • Programmable application-optimized digital control loop
  • Advanced, digital control techniques: Tru-sample Technology™, State-Law Control™ (SLC), and Sub-cycle Response™ (SCR)
  • Improved transient response and noise immunity
  • Protection features: over-current protection, over-voltage protection (VIN, VOUT), under-voltage protection (VIN, VOUT), overloaded startup, over-temperature protection (internal, external), and continuous retry ("hiccup") mode for fault conditions
  • Optimized pre-configured digital loop compensators for the Murata Power Block
  • PMBus™ configuration for output voltage and monitoring
  • Operation from a single 5V or 3.3V supply

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Range Carrier Type Buy Sample
ZSPM1025AA1W1 Not Recommended for New Designs NLG24 VFQFPN 24 -40 to 125°C Reel

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
ZSPM10x5 Short-form Datasheet Short Form Datasheet PDF 197 KB Apr 20, 2016
ZSPM1025A Datasheet Datasheet PDF 1.14 MB Jan 24, 2016
ZSPM1025A Short-form Datasheet Short Form Datasheet PDF 50 KB Jan 24, 2016
User Guides & Manuals
ZSPM8025-KIT Evaluation Kit Description Manual PDF 1.35 MB Apr 19, 2016
ZSPM1025A-ZSPM1035A Pink Power Designer User Manual Manual PDF 1.13 MB Apr 18, 2016
IDT CAD Altium Libraries for AID Products Rev 20160819 PCB Design Files ZIP 1.20 MB Aug 18, 2016
ZSPM10x5A Programming and Calibration Procedures Technical Brief PDF 142 KB Apr 19, 2016

Software & Tools

Title Other Languages Type Format File Size Date
Pink Power Designer(TM) GUI for ZSPM1025A Rev. 1.2.0 Software ZIP 13.29 MB Apr 6, 2016

Evaluation Boards

Part Number Title Sort ascending
ZSPM8025KIT ZSPM8025 Evaluation Kit for the ZSPM1025A PWM Controller IC and Murata OKLP-X/25-W12-C Power Block