Datasheet

UG-334 Evaluation Board User Guide
Rev. 0 | Page 4 of 16
TEST RESULTS
T
A
= 25°C.
100
90
80
70
60
50
40
30
20
10
0
0 2 4 6 8 10 12 14
LOAD (A)
EFFICIENCY (%)
10272-002
V
OUT2
= 1.8V
T
A
= 25°C
V
IN
= 12V
V
OUT1
= 5V
Figure 2. Efficiency (Measurement Is Made with the Adjacent Channel Disabled)
0
–0.005
–0.010
–0.015
–0.020
–0.025
–0.030
–0.035
–0.040
–0.045
–0.050
10 12 14 16 18 20
V
IN
(V)
LINE REGULATION (%)
10272-003
V
OUT2
= 1.8V
T
A
= 25°C
V
IN
= 12V WITH 5A LOAD
V
OUT1
= 5V
Figure 3. Line Regulation
0
–0.05
–0.10
–0.15
–0.20
–0.25
–0.30
–0.35
–0.40
0 2 4 6
8 10 12 14
LOAD (A)
LOAD REGULATION (%)
10272-004
V
OUT2
= 1.8V
V
OUT1
= 5V
T
A
= 25°C
V
IN
= 12V
Figure 4. Load Regulation
10272-005
CH1 20.0mV CH2 10.0V M1.00µs A CH4 10.2V
1
4
2
3
B
W
CH3 20.0mV CH4 10.0V
B
W
SW1
SW2
T
V
OUT1
RIPPLE AT 10A
V
OUT2
RIPPLE AT 10A
Figure 5. Output Ripple, 10 A Load
10272-006
M20.0µs A CH4 7.60V
4
3
CH3 20.0mV CH4 5.00A Ω
B
W
T
V
OUT2
= 1.8V OUTPUT RESPONSE
V
OUT2
5A STEP LOAD
Figure 6. Step Load Transient, V
OUT2
10272-007
M20.0µs A CH4 7.60V
4
3
CH3 20.0mV CH4 5.00A Ω
B
W
T
V
OUT1
= OUTPUT RESPONSE
V
OUT1
5A STEP LOAD
Figure 7. Step Load Transient, V
OUT1