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LTM4677 Datasheet(PDF) 76 Page - Linear Technology |
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LTM4677 Datasheet(HTML) 76 Page - Linear Technology |
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76 / 136 page  LTM4676A 76 4676afa For more information www.linear.com/LTM4676A Typical applicaTions Figure 37. 13A, 1.2V and 2.5V Outputs Generated from 3.3V Power Input and Providing I2C/SMBus/PMBus Serial Interface Figure 38. Output Voltage Margining, Figure 37 Circuit VOUT1, 2.5V ADJUSTABLE UP TO 13A CINH 22µF ×3 CINL 220µF 10k ×9 3.3VIN NOMINAL 5V LOW POWER BIAS <100mA PWM CLOCK SYNCH. TIME BASE SYNCH. • SLAVE ADDRESS = 1001111_R/W (0X4F) • 350kHz SWITCHING FREQUENCY • NO GUI CONFIGURATION AND NO PART-SPECIFIC PROGRAMMING REQUIRED EXCEPT: VIN_OFF < VIN_UV_WARN_LIMIT < VIN_ON < 4.5V IN MULTI-MODULE SYSTEMS, CONFIGURING RAIL_ADDRESS IS RECOMMENDED COUT0 100µF ×7 COUT1 100µF ×7 VOUT0, 1.2V ADJUSTABLE UP TO 13A VIN0 VIN1 SVIN VDD33 LOAD0 SCL SDA ALERT RUN0 RUN1 GPIO0 GPIO1 SYNC SHARE_CLK WP 22.6k 1% ±50ppm/°C 3.24k 1% ±50ppm/°C LTM4676A 4676A F37 + 10.7k 1% ±50ppm/°C SMBus INTERFACE WITH PMBus COMMAND SET ON/OFF CONTROL, FAULT MANAGEMENT, POWER SEQUENCING LOAD1 VOUT0 TSNS0a TSNS0b ISNS0a+ ISNS0b+ ISNS0a– ISNS0b– VORB0+ VOSNS0+ VOSNS0– VORB0– VORB1 VOUT1 TSNS1a TSNS1b ISNS1a+ ISNS1b+ ISNS1a– ISNS1b– VOSNS1 SGND (38a) PMBus Operation (Reg. 0x01): 0x80 → 0xA8 (Margin High) (38c) PMBus Operation (Reg. 0x01): 0x80 → 0x98 (Margin Low) (38b) PMBus Operation (Reg. 0x01): 0xA8 → 0x80 (Margin Off) (38d) PMBus Operation (Reg. 0x01): 0x98 → 0x80 (Margin Off) VOUT1 50mV/DIV VOUT0 50mV/DIV SCL 5V/DIV SDA 5V/DIV 4ms/DIV 4676A F38b VOUT1 50mV/DIV VOUT0 50mV/DIV SCL 5V/DIV SDA 5V/DIV 4ms/DIV 4676A F38d |
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