Datasheet LTM4680 (Analog Devices) - 126

LTM4680
PACKAGE PHOTOGRAPH DESIGN RESOURCES SUBJECT DESCRIPTION
µModule Design and Manufacturing Resources Design: Manufacturing: • Selector Guides • Quick Start Guide • Demo Boards and Gerber Files • PCB Design, Assembly and Manufacturing Guidelines • Free Simulation Tools • Package and Board Level Reliability µModule Regulator Products Search 1. Sort table of products by parameters and download the result as a spread sheet. 2. Search using the Quick Power Search parametric table. Digital Power System Management Analog Devices’ family of digital power supply management ICs are highly integrated solutions that offer essential functions, including power supply monitoring, supervision, margining and sequencing, and feature EEPROM for storing user configurations and fault logging.
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LTM4675 Dual 9A or Single 18A μModule Regulator 4.5V ≤ VIN ≤ 17V, 0.5V ≤ VOUT ≤ 5.5V, 16mm × 11.9mm × 3.51mm BGA LTM4686 Ultrathin Dual 10A or Single 20A μModule Regulator 4.5V ≤ VIN ≤ 17V, 0.5V ≤ VOUT ≤ 2.75V, 16mm × 11.9mm × 1.82mm LGA LTM4676A Dual 13A or Single 26A μModule Regulator 4.5V ≤ VIN ≤ 26.5V, 0.5V ≤ VOUT ≤ 5.5V, 16mm × 16mm × 5.01mm BGA LTM4677 Dual 18A or Single 36A μModule Regulator 4.5V ≤ VIN ≤ 16V, 0.5V ≤ VOUT ≤ 1.8V, 16mm  ×  16mm  ×  5.01mm BGA LTM4630 Same Power as the LTM4677 but Without Digital Power Pin Compatible with LTM4650A; 4.5V ≤ VIN ≤ 15V, 0.6V ≤ VOUT ≤ 1.8V, System Management 16mm  ×  16mm  ×  4.41mm (LGA), 16mm  ×  16mm  ×  5.01mm (BGA) LTM4678 Dual 25A or Single 50A μModule Regulator 4.5V ≤ VIN ≤ 16V, 0.5V ≤ VOUT ≤ 3.3V, 16mm × 16mm × 5.86mm LTM4650 Same Power as LTM4678 but Without Digital Power 4.5V ≤ VIN ≤ 16V, 0.6V ≤ VOUT ≤ 5.5V, 16mm × 16mm × 4.41mm (LGA), Management System μModule Regulator 16mm × 16mm × 5.01 (BGA) LTM4700 Dual 50A or Single 100A µModule Regulator 4.5V ≤ VIN ≤ 16V, 0.5V ≤ VOUT ≤ 1.8V, 15mm × 22mm × 7.87mm (BGA) Rev. A 126 03/19 www.analog.com For more information www.analog.com ANALOG DEVICES, INC. 2018–2019 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Functional Diagram Test Circuits Operation Power Module Introduction Power Module Overview, Major Features EEPROM with ECC Power-Up and Initialization Soft-Start Time-Based Sequencing Voltage-Based Sequencing Shutdown Light-Load Current Operation Switching Frequency and Phase PWM Loop Compensation Output Voltage Sensing INTVCC/EXTVCC Power Output Current Sensing and Sub Milliohm DCR Current Sensing Input Current Sensing PolyPhase Load Sharing External/Internal Temperature Sense RCONFIG (Resistor Configuration) Pins Table 1. VOUTn_CFG Pin Strapping Look-Up Table for the LTM4680’s Output Voltage, Coarse Setting (Not Applicable if MFR_CONFIG_ALL[6] = 1b) Table 2. VTRIMn_CFG Pin Strapping Look-Up Table for the LTM4680’s Output Voltage, Fine Adjustment Setting (Not Applicable if MFR_CONFIG_ALL[6] = 1b) Table 3. FSWPH_CFG Pin Strapping Look-Up Table to Set the LTM4680’s Switching Frequency and Channel Phase-Interleaving Angle (Not Applicable if MFR_CONFIG_ALL[6] = 1b) Table 4. ASEL Pin Strapping Look-Up Table to Set the LTM4680’s Slave Address (Applicable Regardless of MFR_CONFIG_ALL[6] Setting) Table 5. LTM4680 MFR_ADDRESS Command Examples Expressed in 7- and 8-Bit Addressing Fault Detection and Handling Status Registers and ALERT Masking Figure 5. LTM4680 Status Register Summary Mapping Faults to FAULT Pins Power Good Pins CRC Protection Serial Interface Communication Protection Device Addressing Responses to VOUT and IIN/IOUT Faults Output Overvoltage Fault Response Output Undervoltage Response Peak Output Overcurrent Fault Response Responses to Timing Faults Responses to VIN OV Faults Responses to OT/UT Faults Internal Overtemperature Fault Response External Overtemperature and Undertemperature Fault Response Responses to Input Overcurrent and Output Undercurrent Faults Responses to External Faults Fault Logging Bus Timeout Protection Similarity Between PMBus, SMBus and I2C 2-Wire Interface PMBus Serial Digital Interface Table 6. Abbreviations of Supported Data Formats Figure 6. PMBus Timing Diagram Figures 7 to 24 PMBus Protocols PMBus Command Summary PMBus Commands Table 7. PMBus Commands Summary (Note: The Data Format Abbreviations Are Detailed in Table 8) Table 8. Data Format Abbreviations Applications Information VIN to VOUT Step-Down Ratios Input Capacitors Output Capacitors Light Load Current Operation Switching Frequency and Phase Output Current Limit Programming Minimum On-Time Considerations Variable Delay Time, Soft-Start and Output Voltage Ramping Digital Servo Mode Soft Off (Sequenced Off) Undervoltage Lockout Fault Detection and Handling Open-Drain Pins Phase-Locked Loop and Frequency Synchronization Input Current Sense Amplifier Programmable Loop Compensation Checking Transient Response PolyPhase Configuration Connecting The USB to I2C/SMBus/PMBus Controller to the LTM4680 In System LTpowerPlay: An Interactive GUI for Digital Power PMBus Communication and Command Processing Thermal Considerations and Output Current Derating Tables 10 thru 11: Output Current Derating Table 12. Channel Output Voltage vs Capacitor Selection, All Ceramic Configuration, 15A to 30A Load Step with 15A/µs Slew Rate Table 13. Channel Output Voltage vs Capacitor Selection, Bulk and Ceramic Cap Configuration, 15A to 30A Load Step with 15A/µs Slew Rate Table 14. Dual Phase Single Output Voltage vs Capacitor Selection, Bulk and Ceramic Cap Configuration, 30A to 60A Load Step with 30A/µs Slew Rate Derating Curves EMI Performance Safety Considerations Layout Checklist/Example Typical Applications PMBus Command Details Addressing and Write Protect General Configuration Commands On/Off/Margin PWM Configuration Voltage Input Voltage and Limits Output Voltage and Limits Output Current and Limits Input Current and Limits Temperature Power Stage DCR Temperature Calibration Timing Timing—On Sequence/Ramp Timing—Off Sequence/Ramp Precondition for Restart Fault Response Fault Responses All Faults Fault Responses Input Voltage Fault Responses Output Voltage Fault Responses Output Current Fault Responses IC Temperature Fault Responses External Temperature Fault Sharing Fault Sharing Propagation Fault Sharing Response Scratchpad Identification Fault Warning and Status Telemetry NVM Memory Commands Store/Restore Fault Logging Block Memory Write/Read Package Description Table 23. LTM4680 BGA Pinout Package Photograph Design Resources Related Parts