Instruction Manual

Test Results
3-5
Test Results
3.2 Test Results
The test results for the SLUP178 are shown in this section.
Figure 3–4. Efficiency With a Low Profile Sumida Inductor (CDRH6D28; 22 µH, 128 mΩ,
6.7 × 6.7 × 3 mm)
50
55
60
65
70
75
80
85
90
3456
V
I
– Input Voltage – V
Efficiency – %
EFFICIENCY
vs
INPUT VOLTAGE
4.7 mA
4 mA
3 mA
2 mA
Figure 3–5. Efficiency With a High Profile Toko Inductor (646CY–220M; 22 µH,
115 mΩ, 7.6 × 7.6 × 5.1 mm)
50
55
60
65
70
75
80
85
90
3456
V
I
– Input Voltage – V
Efficiency – %
EFFICIENCY
vs
INPUT VOLTAGE
4.8 mA
4 mA
3 mA
2 mA