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
µ
H, 128 m
Ω
,
6.7
×
6.7
×
3 mm)
50
55
60
65
70
75
80
85
90
3
4
5
6
VI – 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
µ
H,
115 m
Ω
, 7.6
×
7.6
×
5.1 mm)
50
55
60
65
70
75
80
85
90
3
4
5
6
VI – Input Voltage – V
Efficiency
–
%
EFFICIENCY
vs
INPUT VOLTAGE
4.8 mA
4 mA
3 mA
2 mA
Summary of Contents for UCC2977EVM
Page 1: ... July 2002 PMP Systems Power User s Guide SLLU049 ...
Page 6: ...iv ...
Page 11: ...Schematic 1 3 Hardware 1 3 Schematic Figure 1 1 UCC2977EVM Schematic ...
Page 14: ...1 6 ...
Page 26: ...3 8 ...
