# # SWCH_1V2 Supply # # DCDC 5 Converter Nets # ------------------------- # # # Original Rev. 27-Mar-2015 # Current Rev. 2-Dec-2016 # # # # This file holds all of the nets for DCDC Converter 5. # # This is the SWCH_1V2 supply 1.200 V at 12 Amps. # # This Hub Module supply uses a GE_PDT012 converter. # # Recall that the SWCH_1V2 rail ramps up after all of # the other power buses are up and stable. # # DCDC_5 does not use the analog Ramp Sequence signal. # # # Connect the converter's V_Input, V_Output, and Ground terminals: # NET 'ISO_12V' DCDC5-2 NET 'GROUND' DCDC5-3 DCDC5-7 NET 'SWCH_1V2' DCDC5-4 # # Connect this converter's INPUT Filter: # NET 'ISO_12V' C1211-2 C1212-2 C1213-2 C1214-2 NET 'GROUND' C1211-1 C1212-1 C1213-1 C1214-1 NET 'ISO_12V' C1215-2 C1216-2 NET 'GROUND' C1215-1 C1216-1 # # Connect this converter's OUTPUT Filter: # NET 'SWCH_1V2' C1221-1 C1222-1 C1223-1 C1224-1 NET 'GROUND' C1221-2 C1222-2 C1223-2 C1224-2 NET 'SWCH_1V2' C1225-1 C1226-1 C1227-1 DZ1201-1 NET 'GROUND' C1225-2 C1226-2 C1227-2 DZ1201-2 # # Ground this converter's unused SYNC terminal: # NET 'GROUND' DCDC5-11 # # Connect the ON_OFF and POWER_GOOD terminals: # # Recall: The ON_OFF pin is Low active, i.e. voltage low --> ON. # The POWER_GOOD is a common open drain signal # NET 'DCDC_5_OFF_ON' DCDC5-1 NET 'DCDC_5_POWER_GOOD' DCDC5-10 # # Connect the RAMP_SEQUENCE terminal: # # Recall: # # DCDC_5 does not use the Ramp Sequence signal. # DCDC_5 ramps up after all of the other DCDC # converters are up and stable. DCDC_5 controls # its own ramp rate. # NET 'No_Conn_DCDC5_Ramp_Sequence' DCDC5-9 # # Connect this converter's Output Voltage Control resistor # between the TRIM and SIG_GND terminals: # NET 'DCDC5_TRIM' DCDC5-6 R1202-2 NET 'DCDC5_SIG_GND' DCDC5-13 R1202-1 # # Connect this converter's Remote Sense input # terminals V_SENSE_PLUS and V_SENSE_MINUS: # NET 'SWCH_1V2' DCDC5-5 NET 'GROUND' DCDC5-12 # # Connect this converter's Servo Loop RC components # between the V_SENSE_PLUS and TRIM terminals: # NET 'SWCH_1V2' C1201-1 NET 'DCDC5_LOOP_RC' C1201-2 R1201-1 NET 'DCDC5_TRIM' R1201-2 # # Connect the PMBus to this converter and set its address # using the PMBUS_CLK, PMBUS_DATA, SMB_ALERT, ADRS0 # and ADRS1 terminals: # NET 'Hub_PMBus_SCL' DCDC5-8 NET 'Hub_PMBus_SDA' DCDC5-15 NET 'Hubs_SMB_Alert_B' DCDC5-14 NET 'DCDC5_ADRS_0' DCDC5-16 R1203-2 NET 'DCDC5_ADRS_1' DCDC5-17 R1204-2 NET 'DCDC5_SIG_GND' R1203-1 R1204-1 # # Connect the Power Via Arrays # # # INPUT Via-Arrays # NET 'ISO_12V' PVA1_dc5-1 PVA1_dc5-2 PVA1_dc5-3 NET 'ISO_12V' PVA1_dc5-4 PVA1_dc5-5 PVA1_dc5-6 NET 'ISO_12V' PVA2_dc5-1 PVA3_dc5-1 # # GROUND Via-Arrays # NET 'GROUND' PVA4_dc5-1 PVA4_dc5-2 PVA4_dc5-3 NET 'GROUND' PVA5_dc5-1 PVA6_dc5-1 PVA7_dc5-1 NET 'GROUND' PVA8_dc5-1 PVA9_dc5-1 # # OUTPUT Via-Arrays # NET 'SWCH_1V2' PVA10_dc5-1 PVA10_dc5-2 PVA10_dc5-3 NET 'SWCH_1V2' PVA10_dc5-4 PVA10_dc5-5 PVA10_dc5-6 NET 'SWCH_1V2' PVA11_dc5-1 PVA11_dc5-2 PVA11_dc5-3 NET 'SWCH_1V2' PVA11_dc5-4 PVA11_dc5-5 PVA11_dc5-6 NET 'SWCH_1V2' PVA12_dc5-1