LTC3887EUJ

DIGITAL POWER SYSTEM MANAGEMENT µModule Regulators • DC/DC ICs • Manager ICs • Sequencers • Supervisors ✔✔ Digitally Manage Point-of-Load (POL) Power Supplies – Trim, Margin, Sequence, Supervise, Log Faults – Monitor Voltage, Current, Power, Energy, and Temperature ✔✔ Increase Power System Reliability ✔✔ Optimize Board Energy Consumption ✔✔ Reduce Time to Market Take Control of Your Power Supplies Accelerate characterization and optimization during prototyping and field operation with Analog Devices' digital power system management (PSM) products, configured and monitored via a PMBus/SMBus/I2C digital interface. Visit analog.com  2 Digital Power System Management Digital Power System Management POWER SYSTEM Any DC/DC Converter or MANAGER Linear Regulator VIN Benefits ±0.25% Voltage Accuracy n Products – Power System Managers – DC/DC Controllers with PSM – Fully Integrated µModule® Regulators n PSM + DC/DC Controller DC/DC CONTROLLER WITH PSM LTpowerPlay ® GUI: Engineering-Level Development Environment L O A D VIN n PSM PMBus Compliant Commands Over I2C/SMBus Digital Interface n EEPROM for Configuration and Black Box Fault Logging n + DC/DC Controller L O A D µModule REGULATOR WITH PSM Autonomous Operation—No Software Coding Required VIN n Coordinate Sequencing and Fault Management Across PSM Devices n PSM Reduced BOM Cost and Validation Effort n LTpowerPlay GUI (Free Download) I2C/SMBus/PMBus + DC/DC Controller L O A D TO PMBus CONTROLLER AND OTHER DEVICES µModule Regulators, DC/DC Controllers and Monolithic Regulators with Power System Management Fast Analog Feedback Loop with Digital Telemetry and Control n Program VOUT, ILIM, OV/UV Level, Frequency, Ramp Rate, Sequencing Time Delays, Margining n Read Back VIN, IIN, VOUT, IOUT, POUT, Duty Cycle, Temperature, Faults n PSM Switcher Selection Guide µModule Regulators ® LTM 4676 LTM4676A LTM4675 LTC ®3880 LTC3880-1 LTC3882 Full Full Full Full Full Full Number of Outputs 2 2 2 2 2 2 PWM Control Mode Current Current Current Current Current Voltage Start-Up Time (Typ) 153 (170 Max) 60 (70 Max) 60 (70 Max) 145 145 70 Calibrated Calibrated Calibrated Inferred Inferred No 0.5 to 4.0, ch0 0.5 to 5.4, ch1 0.5 to 5.3 3.0 to 38 Features PSM Input Current Sense VOUT Range (V) V IN Range (V) VOUT Accuracy (%) IOUT (A) Max Temperature Sensing 0.5 to 4.0, ch0 0.5 to 5.4, ch1 0.5 to 5.5 0.5 to 5.5 0.5 to 4.0, ch0 0.5 to 5.4, ch1 4.5 to 26.5 4.5 to 17 4.5 to 17 4.5 to 24 4.5 to 24 1 0.5 0.5 0.5 0.5 0.5 Dual 13 or Single 26 Dual 13 or Single 26 Dual 9 or Single 18 30/Phase* 30/Phase* 40A/Phase* ΔV BE ΔV BE ΔV BE ΔV BE ΔV BE ΔV BE and Direct DCR Sensing NA NA NA Low Low Ultralow Dedicated PGOOD Pins No No No No No No Gate Drivers NA NA NA Yes Yes No Three-State PWM Control NA NA NA No No Yes Digitally Adjustable Loop Compensation No No No No No No On-Chip LDO from V IN Yes Yes Yes Yes No No Fast ADC Mode No Yes Yes No No No Corresponding Slaves NA NA NA LTC3870 LTC3870 NA Package (mm x mm) 16 x 16 x 5.01 BGA 16 x 16 x 5.01 BGA 11.9 x 16 x 3.51 BGA 6 x 6 QFN-40 6 x 6 QFN-40 6 x 6 QFN-40 * Depends on choice of external components  Visit analog.com Power System Managers Manage Any Adjustable Point-of-Load Power Supply n Trim, Margin, Sequence, Supervise, Manage Faults, Monitor Telemetry, Record Fault Logs n Read Back Voltage, Current, Power, Energy, Temperature, and Faults n LTC2977 8 • • 4 x 5 QFN-24 DC980 2 • • • • ±0.25 % • • • • • • 6 x 7 QFN-44 DC2619 • 4 • • • • ±0.25 % • • • • • • 9 x 9 QFN-64 DC1978 • 4 • • • • ±0.25 % • • • • • • 9 x 9 QFN-64 DC2022 • • • • ±0.25 % • • • • • 9 x 9 QFN-64 DC2028 • • • Trim/ Margin/ Monitor Accuracy ±0.50 % Package (mm × mm) 12V Includes Res/Cap • • EEPROM • • I2C 5V 5 3.3V 4 4 Tracking 4 LTC2975 Cascade LTC2974 Time 3 SMBus 2 2 PMBus 2 LTC2972 Bias Supply External LTC2970 2 Sequencing Internal Number of Current Sensed Loads Digital Interface Input Energy Device Voltage Supply Channels Managed 1 Temp Sense Demo Board LTC2979 16 • • • • • ±0.50 % • • • LTC2980 16 • • • • • ±0.25 % • • • • • 12 x 12 BGA DC2198 LTM2987 16 • • • • • ±0.25 % • • • • • 15 x 15 BGA DC2023 • 12 x 12 BGA 1 A channel refers to the collection of functions that trims, supervises and monitors a given power supply rail. 2 See LTC2970-1 for sequencing. Programmable 6-Channel Sequencer and Supervisors with EEPROM Device Sequencer/ Supervisor Comparator Outputs Threshold Range Threshold Accuracy Power Supply Package (mm × mm) Demo Board LTC2933 Supervisor No 1 V to 13.9 V (1×) 0.2 V to 5.8 V (5×) LTC2936 Supervisor Yes 0.2 V to 5.8 V (6×) ±1 % 3.13 V to 13.9 V 4×5 QFN-24, SSOP-24 DC1605 LTC2937 Both No 0.2 V to 6 V (6×) ±0.75 % 2.9 V to 16.5 V 5×6 QFN-28 DC2313 ±1 % 3.4 V to 13.9 V 5×4 DFN-16, SSOP-16 DC1633 Monolithic Regulators DC/DC Controllers LTC3882-1 LTC3883 LTC3883-1 LTC3884 LTC3884-1 LTC3886 LTC3887 LTC3887-1 LTC3815 Full Full Full Full Full Full Full Full Partial 2 1 1 2 2 2 2 2 1 Voltage Current Current Current Current Current Current Current Current 70 145 145 65 65 65 70 70