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UCD9220RGZRTIN/a7avaiDigital PWM System Controller 48-VQFN -40 to 125


UCD9220RGZR ,Digital PWM System Controller 48-VQFN -40 to 125ELECTRICAL CHARACTERISTICSPARAMETER TEST CONDITIONS MIN NOM MAX UNITSUPPLY CURRENTI V = 3.3 V 8 15V ..
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UCD9220RGZR
Digital PWM System Controller 48-VQFN -40 to 110
Not Recommended for New Designs
UCD9220
www.ti.com
SLUS904–MARCH 2009
Digital PWM System Controller
Checkfor Samples: UCD9220
1FEATURES • Supportedby Fusion Digital Power™
Designer,a Full Featured PC Based Design Fully Configurable Multi-Output and Multi- Toolto Simulate, Configure, and MonitorPhase Non-Isolated DC/DC PWM Controller Power Supply Performance.• Controls Up To Two Voltage Rails and Up To
Four Phases APPLICATIONS• Supports Switching Frequencies Upto 2MHz • Industrial/ATEWith 250 ps Duty-Cycle Resolution Networking Equipment• Up To 1mV Closed Loop Resolution Telecommunications Equipment• Hardware-Accelerated, 3-Pole/3-Zero • ServersCompensator With Non-Linear Gain for
Improved Transient Performance • Storage Systems Supports Multiple Soft-Start and Soft-Stop • FPGA, DSP and Memory Power
Configurations Including Prebias Start-up
DESCRIPTION• Supports Voltage Tracking, Margining and

The UCD9220 is a multi-rail, multi-phaseSequencing
synchronous buck digital PWM controller designedfor• Supports Current and Temperature Balancing non-isolated DC/DC power applications. This devicefor Multi-Phase Power Stages integrates dedicated circuitry for DC/DC loop• Supports Phase Adding/Shedding for Multi- management with flash memory anda serial interfacePhase Power Stages to support configuration, monitoring and
management.• SyncIn /Out Pins Align DPWM Clocks
Between Multiple UCD9220 Devices
The UCD9220 was designed to providea wide
varietyof desirable features for non-isolated DC/DC• 12-Bit Digital Monitoringof Power Supply
converter applications while minimizing the totalParameters Including:
system component count by reducing external– Input Current and Voltage circuits. The solution integrates multi-loop– Output Current and Voltage management with sequencing, margining, tracking
and intelligent phase management to optimize for– Temperatureat Each Power Stage
total system efficiency. Additionally, loop• Multiple Levelsof Overcurrent Fault compensation and calibration are supported without the needto add external components. Fault To facilitate configuring the device, the Texas Current Instruments Fusion Digital Power™ Designer is Graphical User Interfaceto the device. This tool
allows design engineerto configure the system operating parameters store the configuration to on-chip• Enhanced Nonvolatile Error observe both frequency and simulationsfor eachof the power stage Supply Withan TI has also developed complementary Allows stage solutions– Voltage Range family testedin
family. These solutions have been developed to
complement the UCD9k family of system power
controllers.
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