Datasheet

Data Sheet ADP2105/ADP2106/ADP2107
Rev. D | Page 11 of 36
2.35
1.85
06079-072
2.7 5.7
INPUT VOLTAGE (V)
PEAK CURRENT LIMIT (A)
2.30
2.25
2.20
2.15
2.10
2.05
2.00
1.95
1.90
3.0 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4
ADP2106 (1.5A)
T
A
= 25°C
Figure 23. Peak Current Limit of ADP2106
3.00
2.50
06079-071
2.7 5.7
INPUT VOLTAGE (V)
PEAK CURRENT LIMIT (A)
2.95
2.90
2.85
2.80
2.75
2.70
2.65
2.60
2.55
3.0 3.3 3.6
3.9 4.2 4.5 4.8 5.1 5.4
ADP2107 (2A)
T
A
= 25°C
Figure 24. Peak Current Limit of ADP2107
150
0
06079-067
2.7 5.7
INPUT VOLTAGE (V)
PULSE-SKIPPING THRESHOLD CURRENT (mA)
3.0 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4
135
120
105
90
75
60
45
30
15
V
OUT
= 2.5V
V
OUT
= 1.2V
V
OUT
= 1.8V
T
A
= 25°C
Figure 25. Pulse-Skipping Threshold vs. Input Voltage for ADP2106
06079-074
4
3
1
LX (SWITCH) NODE
OUTPUT VOLTAGE
INDUCTOR CURRENT
Δ: 260mV
@: 3.26V
CH1 1V
45.8%CH4 1AΩCH3 5V
M 10µs A CH1 1.78V
T
Figure 26. Short -Circuit Response at Output
135
0
2.7 5.7
06079-066
INPUT VOLTAGE (V)
PULSE-SKIPPING THRESHOLD CURRENT (mA)
120
105
90
75
60
45
30
15
3.0 3.3 3.6 3.9 4.2
4.5 4.8 5.1
5.4
V
OUT
= 1.8V
V
OUT
= 1.2V
V
OUT
= 2.5V
T
A
= 25°C
Figure 27. Pulse-Skipping Threshold vs. Input Voltage for ADP2105
195
0
06079-068
2.7 5.7
INPUT VOLTAGE (V)
PULSE-SKIPPING THRESHOLD CURRENT (mA)
3.0 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4
180
165
150
135
120
105
90
75
60
45
30
15
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 1.2V
T
A
= 25°C
Figure 28. Pulse-Skipping Threshold vs. Input Voltage for ADP2107