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LTM4676A Folha de dados(PDF) 75 Page - Linear Technology |
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LTM4676A Folha de dados(HTML) 75 Page - Linear Technology |
75 / 136 page LTM4676A 75 4676afa For more information www.linear.com/LTM4676A Typical applicaTions CINH 22µF ×3 CINL 220µF 10k ×7 VIN 4.5V to 5.75V PWM CLOCK SYNCH. TIME BASE SYNCH. • SLAVE ADDRESS = 1001010_R/W (0X4A) • 350kHz SWITCHING FREQUENCY • NO GUI CONFIGURATION AND NO PART-SPECIFIC PROGRAMMING REQUIRED EXCEPT: VIN_OFF < VIN_UV_WARN_LIMIT < VIN_ON < 4.3V IN MULTI-MODULE SYSTEMS, CONFIGURING RAIL_ADDRESS IS RECOMMENDED • SETTING MFR_PWM_CONFIG[7] = 1b CONFIGURES THE VOUT1 CONTROL LOOP TO USE THE VOSNS0+/VOSNS0– DIFFERENTIAL-SENSE PIN-PAIR AS THE FEEDBACK SIGNAL FOR REGULATING VOUT1. COUT 100µF ×14 VOUT, 1.5V ADJUSTABLE UP TO 26A VIN0 VIN1 SVIN VDD33 LOAD SCL SDA ALERT RUN0 RUN1 GPIO0 GPIO1 SYNC SHARE_CLK WP 10.7k 1% ±50ppm/°C 22.6k 1% ±50ppm/°C LTM4676A 4676A F35 + 2.1k 1% ±50ppm/°C SMBus INTERFACE WITH PMBus COMMAND SET ON/OFF CONTROL, FAULT MANAGEMENT, POWER SEQUENCING VOUT0 TSNS0a TSNS0b ISNS0a+ ISNS0b+ ISNS0a– ISNS0b– VORB0+ VOSNS0+ VOSNS0– VORB0– VORB1 VOUT1 TSNS1a TSNS1b ISNS1a+ ISNS1b+ ISNS1a– ISNS1b– VOSNS1 SGND Figure 35. 26A, 1.5V Output DC/DC µModule Regulator with I2C/SMBus/PMBus Serial Interface (36a) 5VIN, Figure 35 Circuit (36b) 12VIN, Figure 35 Circuit with INTVCC Open and VOUT Commanded to 1V TOTAL OUTPUT CURRENT (A) 0 12 12 4676A F36a 6 2 4 8 16 0 –2 14 10 IOUT0 IOUT1 8 4 20 24 28 TOTAL OUTPUT CURRENT (A) 0 12 12 4676A F36b 6 2 4 8 16 0 –2 14 10 IOUT0 IOUT1 8 4 20 24 28 Figure 36. Current Sharing Performance of the LTM4676A's Channels |
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