PMBus DC/DC Converters with Power System Management VIN VOUT1 L O A D LTC3883 DC/DC Controller VIN VOUT2 LTC3880 L O A D VIN DC/DC Controller VOUT3 L O A D VIN VOUT4 rPlay LTpowe L O A D For Prototyping and Debug FREE Download www.linear.com/LTpowerPlay LTM4676 µModule® Regulator USB DC1613 PMBus Controller Features Power Supply Configuration Sequence, Trim Margin and Supervise Monitor Telemetry Manage Faults and Create Fault Logs LTpowerPlay™ GUI Support PWM Control Mode Integrated Power Stage Accurate Current Monitoring External Temperature Monitoring Input Voltage Sense Input Current Sense Current Sense Calibration Time Based Sequencing Programmable Output Ramp Rate Trim and Margin Accuracy Fault Logging to Internal EEPROM Autonomous Operation — “Set and Forget” PMBus Compliant Command Set PMBus VOUT5 L O A D To other PMBus Power System Managers and DC/DC Converters LTC®3880 Dual Output DC/DC Controller Dual ü ü ü ü Current LTC3883 Single Output DC/DC Controller Single ü ü ü ü Current ü ü ü Inferred ü ü ü Direct ü ü ü 0.5% ü ü ü ü ü 0.5% ü ü ü L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. LTM®4676 Dual Output µModule Regulator Dual ü ü ü ü Current ü ü Optional ü Inferred Factory Trimmed ü ü 1% ü ü ü Complete Power System Management Family DC/DC Converters with Power System Management Power System Managers Power Supply Channels LTC2977 LTC2978(A) LTC2974 LTC2975** LTC3880 LTC3883 2 8 8 4 4 2 1 2 ü ü ü ü ü ü ü Overview Sequence Trim and Margin ü ü ü ü ü ü ü ü Supervise ü ü ü ü ü ü ü ü Monitor Telemetry ü ü ü ü ü ü ü ü Manage Faults ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü Create Fault Logs Point-of-Load Buck Controller Power LTpowerPlay GUI Support Sequencing ü ü ü ü ü ü Output Channels – – – – – 2 1 2 Output Voltage Range – – – – – 0.5V to 5.5V 0.5V to 5.5V 0.5V to 5.4V PWM Control Mode – – – – – Current Current Current 15V 15V 15V 15V 15V 24V 24V 26.5V Time Based Sequencing ü ü ü ü ü ü ü Shared Timebase (SHARE_CLK) ü ü ü ü ü ü ü ü ü ü ü 0.25% 0.25% Integrated Power Stage Maximum Input Voltage ü Cascade Sequencing Interfaces to Tracking DC/DC Converters ü Servo Programmable Output Ramp Rate Trim Accuracy* Supervision 0.25% 0.25% ü ü ü 0.5% 0.5% 1% ü ü ü ü ü ü ü ü Margin Accuracy* 0.5% 0.25% 0.25% 0.25% 0.25% 0.5% 0.5% 1% Worst Case Voltage Supervisor Accuracy* ü ü ü ü ü ü ü ü 0.5% 1.5% 1.5% 1.5% 1.5% 2.0% 2.0% 2.0% Typical Analog OV Response Time* – – – – – 100ns 100ns 100ns Typical OV Fault Off-Time* – 12µs 12µs 12µs 12µs 30µs 30µs 30µs Input Voltage Comparator ü ü ü ü ü ü ü ü Output Current Supervision ü ü ü ü ü ü 1 Internal 4 External 4 External 1 Int + 2 Ext 1 Int + 1 2 Int + 1 Ext 2 Temperature Supervision Monitoring 0.5% Margin High/Low Output Voltage Supervision 1 Internal 1 Internal Differential Output Voltage Sense Channels 2 8 8 4 4 2 1 Output Current Sense Channels 2 4† 4† 4 4 2 1 2 External Temperature Channels – – – 4 4 2 1 1 Opt Input Voltage Sense ü ü ü ü ü ü ü ü Input Current Sense – – – – Direct Inferred Direct Inferred ü ü ü ü Factory Trimmed Input Power and Energy ü Output Power ü ü Current Sense Calibration Faults Duty Cycle ü ü ü Fault Logging to Internal EEPROM ü ü ü ü ü ü ü Fault Sharing ü ü ü ü ü ü ü Autonomous Retry on Fault ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü Disable DC/DC Converter on Fault ü Disable Intermediate Bus Converter on Fault Autonomous Operation — “Set and Forget” Miscellaneous LTM®4676 LTC2970 ü ü ü ü ü ü ü ü ü ü ü ü ü ü 400kHz 400kHz 400kHz 400kHz 400kHz 100kHz 100kHz 100kHz PMBus Compliant Command Set ü ü ü ü ü ü ü Command Plus Command Set ü 6mm × 6mm QFN 5mm × 5mm QFN 16mm × 16mm BGA Power Good Support Max I2C w/o Clock Stretching Package 4mm × 5mm QFN 9mm × 9mm QFN ü 9mm × 9mm QFN 9mm × 9mm QFN 9mm × 9mm QFN For the latest information, see http://www.linear.com/products/Power_System_Management * Consult data sheet(s) for detailed specifications. † Not temperature compensated. Available on odd channels only. All other channel features are disabled. **Future product. www.linear.com/pmbusconverters n 1-800-4-LINEAR 0413