The HPA064 has the following input/output connections: 12-V input through J3 (VIN and GND), 5.0-V output through J1 (VO1 and GND), and 3.3-V output through J2 (VO2 and GND). Figure 4-1 shows the connection points. A power supply capable of supplying 6 A should be connected to VIN and GND through a pair of 16 AWG wires. The 5.0-V and 3.3-V loads should be connected respectively to VO1, GND and VO2, GND2 through pairs of 16 AWG wires. Wire lengths should be minimized to reduce losses in the wires.

Figure 4-1 TPS51020EVM-001 Schematic