ZHCSD91B January 2015 – January 2022 TPS65251-1 , TPS65251-2 , TPS65251-3
PRODUCTION DATA
Figure 8-3 Buck 1 Start-Up (Ch3 = VIN)
Figure 8-5 Buck 1 Start-Up 1.5-A Resistive
Figure 8-7 Buck 1 Switching Node, No Load
Figure 8-9 Buck 1 Switching Node, 2-A Load
Figure 8-11 Buck 1 Dynamic Response, 0- to 1-A Step
Figure 8-13 Buck 1 Dynamic Response, 1-A to 3-A Step
Figure 8-15 Buck 1 Ripple, 2-A Load
| Ch1 = VOUT | Ch2 = COMP1 | Ch3 = IOUT |
| Ch4 = Inductor |
Figure 8-19 Buck 1 Low-Power Output, No Load
| Ch1 = VOUT | Ch3 = IOUT | Ch4 = Inductor |

| Ch3 = VIN | ||
Figure 8-25 Buck 2 Switching Node, No Load
Figure 8-27 Buck 2 Switching Node, 2-A Load
Figure 8-29 Buck 2 Dynamic Response, 1-A to 2-A Step
Figure 8-31 Buck 2 Ripple, 1-A Load
Figure 8-33 Buck 2 Low-Power Output, No Load
| Ch1 = VOUT | Ch3 = IOUT | Ch4 = Inductor |

| Ch3 = VIN | ||
Figure 8-39 Buck 3 Switching Node, No Load
Figure 8-41 Buck 3 Switching Node, 1.5-A Load
Figure 8-43 Buck 3 Dynamic Response, 1-A to 1.5-A Step
Figure 8-45 Buck 3 Ripple, 1-A Load
Figure 8-47 Buck 3 Low-Power Output, No Load
| Ch1 = VOUT | Ch3 = IOUT | Ch4 = Inductor |
Figure 8-51 Temperature Profile, VO = 1.2 V, IO = 3 A, VO = 1.8 V, IO = 2 A, VO = 3.3 V, IO = 2 A, TA = 28°C
Figure 8-4 Buck 1 Soft-Start
Figure 8-6 Buck 1 Soft-Start 2-A Load
Figure 8-8 Buck 1 Switching Node, 1-A Load
Figure 8-10 Buck 1 Switching Node, 3-A Load
Figure 8-12 Buck 1 Dynamic Response, 2-A to 3-A Step
Figure 8-14 Buck 1 Ripple, 1-A Load
Figure 8-16 Buck 1 Ripple, 3-A Load
| Ch1 = VOUT | Ch2 = COMP1 | Ch3 = IOUT |
| Ch4 = Inductor |
Figure 8-20 Buck 1 Low-Power Operation
| Ch1 = VOUT | Ch3 = IOUT | Ch4 = Inductor |
Figure 8-24 Buck 2 Start-Up, 2-A Load
Figure 8-26 Buck 2 Switching Node, 1-A Load
Figure 8-28 Buck 2 Dynamic Response, 0-A to 1-A Step
Figure 8-30 Buck 2 Ripple, No Load
Figure 8-32 Buck 2 Ripple, 3-A Load
| Ch1 = VOUT | Ch3 = IOUT | Ch4 = Inductor |

| Ch1 = VOUT | Ch2 = COMP1 | Ch3 = IOUT |
| Ch4 = Inductor |
Figure 8-38 Buck 3 Soft-Start
Figure 8-40 Buck 3 Switching Node, 1-A Load
Figure 8-42 Buck 3 Dynamic Response, 0-A to 1-A Step
Figure 8-44 Buck 3 Ripple, No Load
Figure 8-46 Buck 3 Ripple, 3-A Load
| Ch1 = VOUT | Ch3 = IOUT | Ch4 = Inductor |

| Ch1 = VOUT | Ch2 = COMP1 | Ch3 = IOUT |
| Ch4 = Inductor |