SLVS839H July 2008 – October 2023 TPS54331
PRODUCTION DATA
To simplify design efforts using the TPS54331 device, the typical designs for common applications are listed in Table 7-1. For designs using ceramic output capacitors, proper derating of ceramic output capacitance is recommended when performing the stability analysis because the actual ceramic capacitance drops considerably from the nominal value when the applied voltage increases. See Section 8.2.2 for the detailed guidelines or use the WEBENCH software tool (www.TI.com/WEBENCH).
VIN
(V) | VOUT (V) | ƒSW
(kHz) | Lo
(μH) | Co | RO1
(kΩ) | RO2
(kΩ) | C2
(pF) | C1
(pF) | R3
(kΩ) |
---|---|---|---|---|---|---|---|---|---|
12 | 5 | 570 | 6.8 | Ceramic 33 μF, ×2 | 10 | 1.91 | 39 | 4700 | 49.9 |
12 | 3.3 | 570 | 6.8 | Ceramic 47μF, ×2 | 10 | 3.24 | 47 | 1000 | 29.4 |
12 | 1.8 | 570 | 4.7 | Ceramic 100 μF | 10 | 8.06 | 68 | 5600 | 29.4 |
12 | 0.9 | 570 | 3.3 | Ceramic 100 μF, ×2 | 10 | 80.6 | 56 | 5600 | 29.4 |
12 | 5 | 570 | 6.8 | Aluminum 330 μF, 160 mΩ | 10 | 1.91 | 68 | 120 | 29.4 |
12 | 3.3 | 570 | 6.8 | Aluminum 470 μF, 160 mΩ | 10 | 3.24 | 82 | 220 | 10 |
12 | 1.8 | 570 | 4.7 | SP 100 μF, 15 mΩ | 10 | 8.06 | 68 | 5600 | 29.4 |
12 | 0.9 | 570 | 3.3 | SP 330 μF, 12 mΩ | 10 | 80.6 | 100 | 1200 | 49.9 |