Datasheet

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3 TPS53355EVM-743 Recommended Test Setup ....................................................................... 7
4 Efficiency ................................................................................................................... 11
5 Load Regulation ........................................................................................................... 11
6 Line Regulation ............................................................................................................ 12
7 Enable Turnon ............................................................................................................. 12
8 Enable Turnoff ............................................................................................................. 12
9 Output Ripple .............................................................................................................. 13
10 Switching Node ............................................................................................................ 13
11 Output Transient From DCM to CCM................................................................................... 14
12 Output Transient From CCM to DCM .................................................................................. 14
13 Output Transient With FCCM Mode .................................................................................... 14
14 Output 0.75-V Prebias Turnon .......................................................................................... 15
15 Output Overcurrent Protection........................................................................................... 15
16 Output Short Circuit ....................................................................................................... 16
17 Bode Plot at 12 V
IN
, 1.5 V/30 A.......................................................................................... 16
18 Top Board at 12 V
IN
, 1.5 V/30 A, 25°C Ambient Temperature Without Airflow.................................... 17
19 TPS53355EVM-743 Top Layer Assembly Drawing................................................................... 18
20 TPS53355EVM-743 Bottom Assembly Drawing ...................................................................... 18
21 TPS53355EVM-743 Top Copper ....................................................................................... 19
22 TPS53355EVM-743 Layer-2 Copper ................................................................................... 19
23 TPS53355EVM-743 Layer-3 Copper ................................................................................... 20
24 TPS53355EVM-743 Layer-4 Copper ................................................................................... 20
25 TPS53355EVM-743 Layer-5 Copper ................................................................................... 21
26 TPS53355EVM-743 Bottom Layer Copper ............................................................................ 21
List of Tables
1 TPS53355EVM-743 Electrical Performance Specifications ........................................................... 4
2 Switching Frequency Selection ........................................................................................... 8
3 Soft-Start Time Selection .................................................................................................. 8
4 MODE Selection ............................................................................................................ 8
5 Enable Selection ............................................................................................................ 9
6 Test Point Functions ...................................................................................................... 10
7 The EVM Components List According to the Schematic Shown in Figure 1...................................... 22
2
Using the TPS53355EVM-743, High-Efficiency, 30-A, Synchronous Buck SLUU522– August 2011
Converter With Eco-mode™— Control Scheme
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