# # CMX-0 Nets File # # # BULK_3V3 DC/DC Power Converter # --========------------------------- # # # Original Rev. 20-Dec-2012 # Most Recent Rev. 5-June-2013 # # # # This file holds the nets in the BULK_3V3 # DC/DC Power Converter. # # # From the left this is the 2nd converter. # # Components with Reference Designators in the range # # 1551:1599 are included in the BULK_3V3 Converter. # # # # Define the Connections within the BULK_3V3 Power Converter # ------------------------------------========------------------ # # # Input Power to the Converter: NET 'BULK_5V0' R1551-3 # Power to the Current Sense Resistor NET 'BULK_3V3_CS_TO_L' R1551-2 # Power from the Current Sense NET 'BULK_3V3_CS_TO_L' L1551-1 # Resistor to the Filter Inductor NET 'BULK_3V3_INPUT' L1551-2 # Power feed to the Converter NET 'BULK_3V3_INPUT' C1551-1 # Aluminum Input Cap NET 'BULK_3V3_INPUT' C1553-1 C1554-1 # Taltalum Input Caps NET 'BULK_3V3_INPUT' C1559-1 C1560-1 # Ceramic Input Caps NET 'BULK_3V3_INPUT' C1561-1 C1562-1 # Ceramic Input Caps NET 'BULK_3V3_INPUT' DCDC2-1 # Power Input to the Converter NET 'GROUND' C1551-2 # Aluminum Cap Ground NET 'GROUND' C1553-2 C1554-2 # Taltalum Cap Grounds NET 'GROUND' C1559-2 C1560-2 # Ceramic Cap Grounds NET 'GROUND' C1561-2 C1562-2 # Ceramic Cap Grounds # # Power Output from the Converter: NET 'BULK_3V3' DCDC2-4 # Output Power from the Converter NET 'BULK_3V3' C1567-1 C1568-1 # Ceramic Output Caps NET 'BULK_3V3' C1569-1 C1570-1 # Ceramic Output Caps NET 'BULK_3V3' C1575-1 C1576-1 # Taltalum Output Caps NET 'BULK_3V3' C1577-1 C1578-1 # Taltalum Output Caps NET 'BULK_3V3' C1579-1 C1580-1 # Taltalum Output Caps NET 'GROUND' C1567-2 C1568-2 # Ceramic Cap Grounds NET 'GROUND' C1569-2 C1570-2 # Ceramic Cap Grounds NET 'GROUND' C1575-2 C1576-2 # Taltalum Cap Grounds NET 'GROUND' C1577-2 C1578-2 # Taltalum Cap Grounds NET 'GROUND' C1579-2 C1580-2 # Taltalum Cap Grounds # # DC/DC Converter GROUND Pins NET 'GROUND' DCDC2-2 DCDC2-3 # Converter Grounds # # DC/DC Converter Tracking and Feedback Sense Pins NET 'DCDC_CONV_TRACK' DCDC2-9 # TRACK Pin of BULK_3V3 Converter NET 'BULK_3V3' AKA1551-1 # Positive SENSE Remote Connection NET 'BULK_3V3_SEN_POS' AKA1551-2 DCDC2-5 # Positive SENSE input pin NET 'GROUND' AKA1552-1 # Negative SENSE Remote Connection NET 'BULK_3V3_SEN_NEG' AKA1552-2 DCDC2-6 # Negative SENSE input pin # # DC/DC Converter Output Voltage Rset Resistor # with capacitor across the variable part of the Vout Rset Resistor NET 'BULK_3V3_SEN_NEG' R1555-1 R1555-2 # Want Trim Pot CW Truning to: NET 'BULK_3V3_VAR_FIX' R1555-3 # Reduce the Resistance and NET 'BULK_3V3_VAR_FIX' R1554-1 # Increase the Output Voltage NET 'BULK_3V3_VO_ADJ' R1554-2 DCDC2-7 # Converter Rset Vout Adj pin NET 'BULK_3V3_SEN_NEG' C1582-1 # Capacitor across the NET 'BULK_3V3_VAR_FIX' C1582-2 # Vout Trim Pot Resistor # # DC/DC Converter Transient Response Control Pin NET 'BULK_3V3_SEN_POS' R1556-2 # Transient Response Resistor NET 'BULK_3V3_TRC_PIN' R1556-1 DCDC2-8 # Transient Response Control pin # # DC/DC Converter NO Connect Pins NET 'No_Conn_DCDC2_10_INH' DCDC2-10 # INH / UVLO Pin #10 Not Used NET 'No_Conn_DCDC2_11_SYNC' DCDC2-11 # SYNC Pin #11 Not Used # # Current Sense High-Side Amplifier NET 'BULK_3V3_CS_SRC' R1551-4 R1552-2 # Current Sense Source Input Resistor NET 'BULK_3V3_CS_AMP_P' U1551-8 R1552-1 # Current Sense Amp Positive Input NET 'BULK_3V3_CS_LOAD' R1551-1 R1553-2 # Current Sense Load Input Resistor NET 'BULK_3V3_CS_AMP_N' U1551-1 R1553-1 # Current Sense Amp Negative Input NET 'BULK_3V3_CS_AMP_OUT' U1551-5 # Current Sense Amp Output NET 'BULK_3V3' U1551-2 C1581-2 # Current Sense Amp V+ Power NET 'GROUND' U1551-4 C1581-1 # Current Sense Amp GROUND NET 'No_Conn_BULK_3V3_CS_AMP_P3' U1551-3 # Current Sense Amp No Conn Pin #3 NET 'No_Conn_BULK_3V3_CS_AMP_P6' U1551-6 # Current Sense Amp No Conn Pin #6 NET 'No_Conn_BULK_3V3_CS_AMP_P7' U1551-7 # Current Sense Amp No Conn Pin #7