Tool/software:
Hi,
I am evaluating TPS630702 for my design. However, I am not able to get same efficiency as shown in datasheet.
I am supplying 5.2V at input and have adjusted the output to 5V.
Please find following datapoints for your reference.
| Vin | Iin (ma) | Vout | Iout (ma) | Efficiency | Power D (mW) |
| 5.2 | 10.22 | 5 | 10 | 94% | 3.14 |
| 5.2 | 15.48 | 5 | 15 | 93% | 5.50 |
| 5.2 | 20.78 | 5 | 20 | 93% | 8.06 |
| 5.2 | 26.10 | 5 | 25 | 92% | 10.72 |
| 5.2 | 31.47 | 5 | 30 | 92% | 13.64 |
| 5.2 | 36.90 | 5 | 35 | 91% | 16.88 |
| 5.2 | 42.21 | 5 | 40 | 91% | 19.49 |
| 5.2 | 47.70 | 5 | 45 | 91% | 23.04 |
| 5.2 | 53.14 | 5 | 50 | 90% | 26.33 |
| 5.2 | 58.58 | 5 | 55 | 90% | 29.62 |
| 5.2 | 63.85 | 5 | 60 | 90% | 32.02 |
| 5.2 | 69.40 | 5 | 65 | 90% | 35.88 |
| 5.2 | 75.00 | 5 | 70 | 90% | 40.00 |
| 5.2 | 80.70 | 5 | 75 | 89% | 44.64 |
| 5.2 | 86.40 | 5 | 80 | 89% | 49.28 |
| 5.2 | 92.50 | 5 | 85 | 88% | 56.00 |
| 5.2 | 98.00 | 5 | 90 | 88% | 59.60 |
| 5.2 | 103.50 | 5 | 95 | 88% | 63.20 |
| 5.2 | 109.20 | 5 | 100 | 88% | 67.84 |
| 5.2 | 120.60 | 5 | 110 | 88% | 77.12 |
| 5.2 | 132.40 | 5 | 120 | 87% | 88.48 |
| 5.2 | 143.00 | 5 | 130 | 87% | 93.60 |
| 5.2 | 153.70 | 5 | 140 | 88% | 99.24 |
| 5.2 | 165.40 | 5 | 150 | 87% | 110.08 |
| 5.2 | 177.10 | 5 | 160 | 87% | 120.92 |
| 5.2 | 193.60 | 5 | 170 | 84% | 156.72 |
| 5.2 | 204.00 | 5 | 180 | 85% | 160.80 |
| 5.2 | 215.20 | 5 | 190 | 85% | 169.04 |
| 5.2 | 227.60 | 4.99 | 200 | 84% | 185.52 |
| 5.2 | 243.80 | 4.99 | 210 | 83% | 219.86 |
| 5.2 | 255.00 | 4.99 | 220 | 83% | 228.20 |
| 5.2 | 266.80 | 4.99 | 230 | 83% | 239.66 |
| 5.2 | 278.60 | 4.99 | 240 | 83% | 251.12 |
| 5.2 | 291.50 | 4.99 | 250 | 82% | 268.30 |
Please let me know what changes needs to make on eval board for improving the output voltage efficiency.
Regards,
Anurag
