ADP2107 Analog Devices, ADP2107 Datasheet - Page 11

• Manufacturer Part Number: ADP2107
• Description: 2 Amp Synchronous, Step-Down DC-to-DC Converter
• Manufacturer: Analog Devices

Figure 25. Pulse-Skipping Threshold vs. Input Voltage for ADP2106
2.35
2.30
2.25
2.20
2.15
2.10
2.05
2.00
1.95
1.90
1.85
3.00
2.95
2.90
2.85
2.80
2.75
2.70
2.65
2.60
2.55
2.50
150
135
120
105
90
75
60
45
30
15
0
2.7
2.7
2.7
V
3.0
3.0
3.0
OUT
Figure 23. Peak Current Limit of ADP2106
Figure 24. Peak Current Limit of ADP2107
= 1.8V
3.3
3.3
3.3
V
OUT
3.6
3.6
3.6
= 1.2V
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
3.9
3.9
3.9
4.2
4.2
4.2
ADP2106 (1.5A)
V
ADP2107 (2A)
OUT
4.5
4.5
4.5
= 2.5V
4.8
4.8
4.8
5.1
5.1
5.1
T
T
T
A
A
A
5.4
5.4
5.4
= 25°C
= 25°C
= 25°C
5.7
5.7
5.7
Rev. C | Page 11 of 36
Figure 27. Pulse-Skipping Threshold vs. Input Voltage for ADP2105
Figure 28. Pulse-Skipping Threshold vs. Input Voltage for ADP2107
3
1
4
135
120
105
195
180
165
150
135
120
105
90
75
60
45
30
15
90
75
60
45
30
15
CH1
CH3 5V
0
0
2.7
2.7
1V
Figure 26. Short -Circuit Response at Output
3.0
3.0
LX (SWITCH) NODE
INDUCTOR CURRENT
OUTPUT VOLTAGE
ADP2105/ADP2106/ADP2107
CH4 1AΩ
V
3.3
3.3
OUT
= 1.8V
V
3.6
3.6
OUT
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
= 1.2V
3.9
3.9
M 10µs
T
4.2
4.2
V
OUT
45.8%
V
OUT
= 1.2V
4.5
4.5
V
V
OUT
OUT
= 2.5V
= 1.8V
= 2.5V
4.8
4.8
A CH1
Δ: 260mV
@: 3.26V
5.1
5.1
T
T
A
A
1.78V
5.4
5.4
= 25°C
= 25°C
5.7
5.7