APPLICATION NOTE | AN42 |
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VID | Iload (A) | Vout (V) |
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1010 | 0.5 | 2.505 |
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| 1.0 | 2.504 |
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| 2.0 | 2.501 |
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| 3.0 | 2.496 |
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| 4.0 | 2.493 |
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| 5.0 | 2.493 |
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| 6.0 | 2.492 |
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| 7.0 | 2.492 |
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| 8.0 | 2.491 |
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| 9.0 | 2.490 |
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| 10.0 | 2.489 |
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| 11.0 | 2.488 |
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| 12.0 | 2.486 |
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| 13.0 | 2.485 |
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| 13.9 | 2.484 |
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Load Regulation 0.5 - 13.9A | 0.84% | |
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Note:
Load regulation is expected to be typically around 0.8%. The load regulation performance for this device under evaluation is excellent.
Output Voltage Load Transients Due to Load Current Step
This test is performed using Intel P6.0/P6S/P6T Voltage Transient Tester.
Low to High | - 76.0mV | Refer to | |
Current Step |
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| Attachment |
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| A for Scope |
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| Picture |
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High to Low | + 70mV | Refer to | |
Current Step |
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| Attachment |
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| B for Scope |
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| Picture |
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Low to High | - 97.6mV | Refer to | |
Current Step |
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| Attachment |
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| C for Scope |
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| Picture |
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High to Low | + 80.0mV | Refer to | |
Current Step |
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| Attachment |
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| D for Scope |
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| Picture |
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Low to High | - 99.2mV | Refer to | |
Current Step |
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| Attachment |
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| E for Scope |
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| Picture |
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High to Low | + 105.2mV | Refer to | |
Current Step |
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| Attachment |
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| F for Scope |
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| Picture |
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Note:
Excellent transient voltage response. Transient voltage is rec- ommended to be less than 4% of the output voltage. The per- formance of the device under evaluation is significantly better than a typical VRM.
Input Ripple and Power on Input Rush Current
Iload = 9.9A | Input Ripple | Refer to Attachment |
| Voltage = 15mV | G for Scope Picture |
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Power on Input Rush Current is not measured on the mother- board because we did not want to cut the 5V trace and insert current probe in series with the supply. However, with the input filter design, the Input Rush Current will be well within specification.
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