3 Test Device and Evaluation Board Information

The TPS73801-SEP used for the data collection presented on this report is packaged in a 6-pin SOT-223 (DCQ) as shown in Figure 3-1. The TPS73801-SEP DEM-SOT223LDO (compatible with most positive output LDOs in the SOT-223 board) was used to evaluate the performance and characteristics of the TPS73801-SEP. Top and bottom views of the evaluation board used for radiation testing are shown in Figure 3-2. Board schematics are shown on Figure 3-3. The Bill of Materials (BOM) used for this characterization was populated on DEM-SOT223LDO demonstration fixture. The input capacitor, output capacitors, and feedback divider resistors used to set Vout are shown in Table 3-1 and Table 3-2.

For more information about the evaluation board, see the DEM-SOT223LDO tool folder.

Note that the device shown in Figure 3-1 was decapped to reveal the die face for all heavy-ion testing.

Figure 3-1 Photograph of Delidded TPS73801-SEP (Left) and Pinout Diagram (Right)

Figure 3-2 DEM-SOT223LDO Demonstration Fixture Board Top View (Left) and Bottom View (Right)

Figure 3-3 Schematic of the DEM−SOT223LDO Used During SEE Characterization

The input and output capacitors and resistive dividers for a particular output used for the heavy-ion characterization discussed in this report were populated on the board as listed in Table 3-1 and Table 3-2