Datasheet

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List of Figures
1 PWR091EVM Schematic .................................................................................................. 9
2 PWR091EVM Recommended Test Setup ............................................................................. 11
3 Texas Instruments USB-to-GPIO Adapter and Connections ........................................................ 12
4 Tip and Barrel Measurement............................................................................................. 12
5 Efficiency of 1.2-V Output vs Line and Load........................................................................... 17
6 Efficiency of 3.3-V Output vs Line and Load........................................................................... 17
7 Load Regulation of 1.2-V Output ........................................................................................ 18
8 Load Regulation of 3.3-V Output ........................................................................................ 18
9 Bode Plot of 1.2-V Output at 10-A Load................................................................................ 19
10 Bode Plot of 3.3-V Output at 10-A Load................................................................................ 19
11 Transient Response of 1.2-V Output at 8 Vin, Transient is 5 A to 11 A to 5 A.................................... 20
12 Transient Response of 1.2-V Output at 12 Vin, Transient is 5 A to 11 A to 5 A .................................. 20
13 Transient Response of 3.3-V Output at 8 Vin, Transient is 5 A to 9 A to 5 A ..................................... 21
14 Transient Response of 3.3-V Output at 12 Vin, Transient is 5 A to 9 A to 5 A.................................... 21
15 Output Ripple and SW Node of 1.2-V Output at 8 Vin, 20-A Output .............................................. 22
16 Output Ripple and SW Node of 1.2-V Output at 12 Vin, 20-A Output.............................................. 22
17 Output Ripple and SW Node of 3.3-V Output at 8 Vin, 15-A Output ............................................... 23
18 Output Ripple and SW Node of 3.3-V Output at 12 Vin, 15-A Output.............................................. 23
19 HDRV and SW Node of 1.2-V Output at 8 Vin, 20-A Output ........................................................ 24
20 HDRV and SW Node of 1.2-V Output at 12 Vin, 20-A Output....................................................... 24
21 HDRV and SW Node of 3.3-V Output at 8-Vin, 15-A Output ........................................................ 24
22 HDRV and SW Node of 3.3-V Output at 12 Vin, 15-A Output....................................................... 25
23 Turnon Waveform of 1.2-V Output at 8-V, 12-V and 14-V Input, 20-A Output .................................... 25
24 Turnon Waveform of 1.2-V Output With 0.5-V Prebias, at 8-V, 12-V and 14-V Input, 0-A Output ............. 25
25 Turnon Waveform of 3.3-V Output at 8-V, 12-V, and 14-V Input, 15-A Output ................................... 26
26 Turnon Waveform of 3.3-V Output With 2-V Prebias, at 8-V, 12-V, and 14-V Input, 0-A Output............... 26
27 PWR091EVM Top Layer Assembly Drawing (Top View) ............................................................ 27
28 PWR091EVM Bottom Assembly Drawing (Bottom View) ............................................................ 28
29 PWR091EVM Top Copper (Top View) ................................................................................. 29
30 PWR091EVM Internal Layer 1 (Top View)............................................................................. 30
31 PWR091EVM Internal Layer 2 (Top View)............................................................................. 31
32 PWR091EVM Bottom Copper (Bottom View) ......................................................................... 32
33 First Window at Fusion Launch.......................................................................................... 34
34 Scan Finds Device Successfully......................................................................................... 34
35 Software Launch Continued.............................................................................................. 34
36 Software Launch Continued.............................................................................................. 35
37 First Screen After Successful Launch: Configure- Limits & On/Off ................................................. 35
38 Configure- Other........................................................................................................... 36
39 Configure- All............................................................................................................... 36
40 Configure- Limits and On/Off- On/Off Config Pop-up................................................................. 37
41 Configure- Limits and On/Off- On/Off Config Pop-up................................................................. 37
42 Configure- Other- Iout Cal Gain Change ............................................................................... 38
43 Configure- All Config- On/Off Config Pop-up .......................................................................... 38
44 Configure- Store User Defaults .......................................................................................... 39
45 Change Screens to Other Vout Rail .................................................................................... 39
46 Change View Screen to Monitor Screen ............................................................................... 40
47 Monitor Screen............................................................................................................. 41
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List of Figures SLVU638–January 2012
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