6 test results – Texas Instruments SLVP089 User Manual
Page 15
Test Results
1-7
Hardware
1.6
Test Results
Tables 1–2 and 1–3, along with Figures 1–5 through 1–8, show the test results
for the SLVP089.
Table 1–2. Line/Load Regulation, 3.3-V (Total Variation)
Line/Load
0.3 A
0.9 A
1.5 A
3.0 A
5.0 A
Load Reg.
5.5 V Vo(V)
3.330
3.329
3.328
3.324
3.320
0.18%
6.0 V Vo(V)
3.330
3.329
3.328
3.324
3.320
0.18%
7.0 V Vo(V)
3.330
3.328
3.328
3.325
3.321
0.15%
8.0 V Vo(V)
3.330
3.329
3.328
3.325
3.321
0.15%
9.0 V Vo(V)
3.331
3.330
3.328
3.325
3.321
0.18%
10 V Vo(V)
3.331
3.330
3.328
3.325
3.321
0.18%
11 V Vo(V)
3.331
3.330
3.328
3.325
3.321
0.18%
12 V Vo(V)
3.331
3.330
3.329
3.325
3.321
0.18%
Line Reg.
0.03%
0.06%
0.03%
0.03%
0.03%
Note:
The calculation for load regulation only accounts for the worst case of load variation under the normal voltage condition
(i.e., 3.3 V at 3 A). All voltages were measured at the PCB header pins.
Table 1–3. Load Regulation and Ripple, 3.3-V (9-V Input)
Load
No Load
0.50 A
1.0 A
2.0 A
3.0 A
5.0 A
Reg.
Vo(V)
3.331
3.330
3.329
3.327
3.325
3.321
0.18%
Vo Ripple (mV P–P)
16
16
18
24
24
32
Vo Spikes (mV P–P)
0
24
24
34
48
60
Figure 1–5. Efficiency Vs Load
85
80
75
70
0
1
2
3
Efficiency
–
%
90
95
Load Current – A
EFFICIENCY
vs
LOAD CURRENT
100
4
5
VI = 9 V
VI = 5.5 V
VI = 12 V