Datasheet

UG-456 Evaluation Board User Guide
Rev. 0 | Page 6 of 12
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 4. Efficiency vs. Load Current, V
OUT
= 5 V, f
SW
= 500 kHz, Pulse Skip Mode
Figure 5. Efficiency vs. Load Current, V
OUT
= 5 V, f
SW
= 500 kHz, PWM Mode
Figure 6. Load Regulation, V
OUT
= 5 V, f
SW
= 500 kHz
Figure 7. Line Regulation, V
OUT
= 5 V, f
SW
= 500 kHz
Figure 8. Pulse Skip Mode Waveforms, V
IN
= 24 V, V
OUT
= 5 V, f
SW
= 500 kHz,
No Load, SYNC/MODE: AGND
Figure 9. PWM Waveform, V
IN
= 24 V, V
OUT
= 5 V, f
SW
= 500 kHz, Load = 1 A
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1
EFFICIENCY (%)
LOAD (A)
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
10949-005
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1
EFFICIENCY (%)
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
10949-006
LOAD (A)
LOAD (A)
10949-007
4.980
4.985
4.990
4.995
5.000
5.005
5.010
5.015
5.020
5.025
5.030
5.035
5.040
0 0.2 0.4 0.6 0.8 1.0 1.2
V
OUT
(V)
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
10949-008
4.97
4.98
4.99
5.00
5.01
5.02
5.03
5.04
5.05
5.06
7 12 17 22 27 32 37 42
V
OUT
(V)
V
IN
(V)
NO LOAD
LOAD 1A
CH1 100mV CH2 10V M20µs A CH4 150mA
1
4
2
T 46.8%
B
W
CH4 500mA Ω
V
OUT
SWSW
INDUCTOR CURRENT
10949-009
CH1 50mV CH2 10V M2µs A CH2 7.6V
1
4
2
T 46.8%
B
W
CH4 500mA Ω
V
OUT
INDUCTOR CURRENT
SWSW
10949-010