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VQFN (RGZ) 48 49 mm² 7 x 7 VQFN (RGZ) 48 49 mm² 7.0 x 7.0
  • Fully Configurable Multi-Output and Multi-Phase Non-Isolated DC/DC PWM Controller
  • Controls Up To Two Voltage Rails and Up To Four Phases
  • Supports Switching Frequencies Up to 2MHz With 250 ps Duty-Cycle Resolution
  • Up To 1mV Closed Loop Resolution
  • Hardware-Accelerated, 3-Pole/3-Zero Compensator With Non-Linear Gain for Improved Transient Performance
  • Supports Multiple Soft-Start and Soft-Stop Configurations Including Prebias Start-up
  • Supports Voltage Tracking, Margining and Sequencing
  • Supports Current and Temperature Balancing for Multi-Phase Power Stages
  • Supports Phase Adding/Shedding for Multi-Phase Power Stages
  • Sync In /Out Pins Align DPWM Clocks Between Multiple UCD9220 Devices
  • 12-Bit Digital Monitoring of Power Supply Parameters Including:
    • Input Current and Voltage
    • Output Current and Voltage
    • Temperature at Each Power Stage
  • Multiple Levels of Overcurrent Fault Protection:
    • External Current Fault Inputs
    • Analog Comparators Monitor Current Sense Voltage
    • Current Digitally Monitored
  • Over and Undervoltage Fault Protection
  • Overtemperature Fault Protection
  • Enhanced Nonvolatile Memory With Error Correction Code (ECC)
  • Device Operates From a Single Supply With an Internal Regulator Controller That Allows Operation Over a Wide Supply Voltage Range
  • Supported by Fusion Digital Power™ Designer, a Full Featured PC Based Design Tool to Simulate, Configure, and Monitor Power Supply Performance.
  • APPLICATIONS
    • Industrial/ATE
    • Networking Equipment
    • Telecommunications Equipment
    • Servers
    • Storage Systems
    • FPGA, DSP and Memory Power

Fusion Digital Power, Auto-ID are trademarks of Texas Instruments.

  • Fully Configurable Multi-Output and Multi-Phase Non-Isolated DC/DC PWM Controller
  • Controls Up To Two Voltage Rails and Up To Four Phases
  • Supports Switching Frequencies Up to 2MHz With 250 ps Duty-Cycle Resolution
  • Up To 1mV Closed Loop Resolution
  • Hardware-Accelerated, 3-Pole/3-Zero Compensator With Non-Linear Gain for Improved Transient Performance
  • Supports Multiple Soft-Start and Soft-Stop Configurations Including Prebias Start-up
  • Supports Voltage Tracking, Margining and Sequencing
  • Supports Current and Temperature Balancing for Multi-Phase Power Stages
  • Supports Phase Adding/Shedding for Multi-Phase Power Stages
  • Sync In /Out Pins Align DPWM Clocks Between Multiple UCD9220 Devices
  • 12-Bit Digital Monitoring of Power Supply Parameters Including:
    • Input Current and Voltage
    • Output Current and Voltage
    • Temperature at Each Power Stage
  • Multiple Levels of Overcurrent Fault Protection:
    • External Current Fault Inputs
    • Analog Comparators Monitor Current Sense Voltage
    • Current Digitally Monitored
  • Over and Undervoltage Fault Protection
  • Overtemperature Fault Protection
  • Enhanced Nonvolatile Memory With Error Correction Code (ECC)
  • Device Operates From a Single Supply With an Internal Regulator Controller That Allows Operation Over a Wide Supply Voltage Range
  • Supported by Fusion Digital Power™ Designer, a Full Featured PC Based Design Tool to Simulate, Configure, and Monitor Power Supply Performance.
  • APPLICATIONS
    • Industrial/ATE
    • Networking Equipment
    • Telecommunications Equipment
    • Servers
    • Storage Systems
    • FPGA, DSP and Memory Power

Fusion Digital Power, Auto-ID are trademarks of Texas Instruments.

The UCD9220 is a multi-rail, multi-phase synchronous buck digital PWM controller designed for non-isolated DC/DC power applications. This device integrates dedicated circuitry for DC/DC loop management with flash memory and a serial interface to support configuration, monitoring and management.

The UCD9220 was designed to provide a wide variety of desirable features for non-isolated DC/DC converter applications while minimizing the total system component count by reducing external circuits. The solution integrates multi-loop management with sequencing, margining, tracking and intelligent phase management to optimize for total system efficiency. Additionally, loop compensation and calibration are supported without the need to add external components.

To facilitate configuring the device, the Texas Instruments Fusion Digital Power™ Designer is provided. This PC based Graphical User Interface offers an intuitive interface to the device. This tool allows the design engineer to configure the system operating parameters for the application, store the configuration to on-chip non-volatile memory and observe both frequency domain and time domain simulations for each of the power stage outputs.

TI has also developed multiple complementary power stage solutions - from discrete drives in the UCD7k family to fully tested power train modules in the PTD family. These solutions have been developed to complement the UCD9k family of system power controllers.

The UCD9220 is a multi-rail, multi-phase synchronous buck digital PWM controller designed for non-isolated DC/DC power applications. This device integrates dedicated circuitry for DC/DC loop management with flash memory and a serial interface to support configuration, monitoring and management.

The UCD9220 was designed to provide a wide variety of desirable features for non-isolated DC/DC converter applications while minimizing the total system component count by reducing external circuits. The solution integrates multi-loop management with sequencing, margining, tracking and intelligent phase management to optimize for total system efficiency. Additionally, loop compensation and calibration are supported without the need to add external components.

To facilitate configuring the device, the Texas Instruments Fusion Digital Power™ Designer is provided. This PC based Graphical User Interface offers an intuitive interface to the device. This tool allows the design engineer to configure the system operating parameters for the application, store the configuration to on-chip non-volatile memory and observe both frequency domain and time domain simulations for each of the power stage outputs.

TI has also developed multiple complementary power stage solutions - from discrete drives in the UCD7k family to fully tested power train modules in the PTD family. These solutions have been developed to complement the UCD9k family of system power controllers.

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Technical documentation

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Type Title Date
* Data sheet Digital PWM System Controller datasheet 03 Mar 2009
* Errata UCD9220 Datasheet Errata 21 Mar 2009
Application note Digital Loop Exemplified 23 Sep 2011
User guide Using the UCD92xx Digital Point-of-Load Controller 13 Apr 2011
User guide UCD92xx PMBus Command Reference 03 Nov 2008
Application note PowerPAD™ Made Easy (Rev. B) 12 May 2004

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Debug probe

TMDSEMU200-U — XDS200 USB Debug Probe

The XDS200 is a debug probe (emulator) used for debugging TI embedded devices.  The XDS200 features a balance of low cost with good performance as compared to the low cost XDS110 and the high performance XDS560v2.  It supports a wide variety of standards (IEEE1149.1, IEEE1149.7, SWD) in a (...)

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Application software & framework

FUSION_DIGITAL_POWER_DESIGNER — Digital Power Software

Fusion Digital Power™ graphical user interface (GUI) software is used to configure and monitor select Texas Instruments digital power controllers and sequencer/health monitors. The application uses the PMBus protocol to communicate with the device over serial bus by way of a TI USB adapter.
Application software & framework

FUSION_MFR_GUI — Fusion Digital Power Manufacturing Tool

The Fusion Digital Power Manufacturing Tool (aka MFR GUI) is a Graphical User Interface used to download firmware, upgrade firmware, configure, calibrate and test .

The MFR GUI supports the same devices as Fusion Digital Power Designer software.  This tool is typically used in manufacturing (...)

Simulation model

UCD9220 IBIS Model

SLUM104.ZIP (16 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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VQFN (RGZ) 48 View options

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