Datasheet

Evaluation Board User Guide UG-329
Rev. 0 | Page 5 of 8
TYPICAL PERFORMANCE CHARACTERISTICS
100
90
80
70
60
50
40
30
0 1 2 3 4
OUTPUT CURRENT (A)
EFFICIENCY (%)
INDUCTOR: COILCRAFT
MSS1038-152NLB
V
OUT
= 0.6V
V
OUT
= 1.0V
V
OUT
= 1.2V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
10236-003
Figure 3. Efficiency vs. Output Current, V
IN
= 5 V, f
S
= 600 kHz
CH1 5.00V CH2 2.00V M 400ns A CH1 2.50V
1
2
T 60.40%
T
SW
SYNC
10236-006
Figure 4. ADP2164 Synchronized to 1 MHz, in Phase
CH1 500mV CH2 5.00V
CH3 5.00V CH4 2.00A Ω
M 1.00ms A CH3 2.50V
1
3
4
2
T 20.20%
T
EN
PGOOD
I
L
V
OUT
10236-007
Figure 5. Soft Start with Full Load, V
IN
= 5 V, V
OUT
= 1.2 V, f
S
= 1.2 MHz
100
90
80
70
60
50
40
30
0 1 2 3 4
OUTPUT CURRENT (A)
EFFICIENCY (%)
INDUCTOR: COILCRAFT
MSS1038-152NLB
V
OUT
= 0.6V
V
OUT
= 1.0V
V
OUT
= 1.2V
V
OUT
= 1.8V
V
OUT
= 2.5V
10236-004
Figure 6. Efficiency vs. Output Current, V
IN
= 3.3 V, f
S
= 600 kHz
CH1 5.00mV CH2 5.00V
CH4 2.00A Ω
M 400ns A CH2 3.30V
2
1
4
T 30.60%
T
SW
V
OUT
I
L
10236-005
Figure 7. Steady Waveform, V
IN
= 5 V, V
OUT
= 1.2 V, f
S
= 1.2 MHz
I
O
CH1 100mV
CH4 2.00A Ω
M 200µs A CH4 2.52A
4
1
T 20.20%
T
B
W
V
OUT
(AC)
10236-008
Figure 8. Load Transient, 0.5 A to 3.5 A Load Step,
V
IN
= 5 V, V
OUT
= 1.2 V, f
S
= 1.2 MHz