ADP2102 Analog Devices, ADP2102 Datasheet - Page 10

• Manufacturer Part Number: ADP2102
• Description: Low Duty Cycle, 600 mA, 3 MHz Synchronous Step-Down DC-to-DC Converter
• Manufacturer: Analog Devices

ADP2102
Figure 29. CCM Mode Operation at Medium/Heavy Loads (0.3 A)
4
1
2
1
3
4
1
3
2
CH1 500mA Ω
CH1
CH3 2.00V
CH1 2.00V
CH3
Figure 28. PSM Mode Operation at Light Loads (75 mA)
V
V
I
LOAD
IN
OUT
CH3: V
1.00V
200mA Ω
CH1: LX
CH2: IL
= 3.6V
0mA
= 1.5V
= 0mA - 75mA - 0mA
OUT
Figure 30. Light Load Behavior
B
B W
B
B
B W
W
W
W
CH2 100mA Ω
CH4 2.00V
CH2
CH4 2.00V
T
CH4: V
CH2: V
CH3: LX
CH1: IL
CH4: LX
CH1: IL
2.00V
75mA
OUT
OUT
B W
B
W
T
T
B
W
M 200ns
M 10.0µs
T
T
M 200µs A CH2
51.00%
–4.00000ns
0mA
A CH1
A CH4
T
T
T
A
A
A
= 25°C
= 25°C
= 25°C
82.0mA
388mA
2.72V
Rev. B | Page 10 of 24
180
160
140
120
100
1
2
1
2
80
60
40
20
2.5
CH1 50.0mV
CH1
0
Figure 31. Typical PSM Threshold vs. Input Voltage
Figure 32. Load Transient Response (V
Figure 33. Load Transient Response (V
50.0mV
3.0
T
T
B
B
W
W
CH2: I
CH2: I
CH2
CH2 200mA Ω M 100µs
3.5
INPUT VOLTAGE (V)
LOAD
CH1: V
200mA Ω M 100µs
LOAD
CH1: V
(0mA TO 300mA)
(0mA TO 300mA)
OUT
OUT
4.0
T
(AC)
(AC)
23.60%
V
OUT
4.5
= 1.5V
A CH2
A CH2
V
OUT
OUT
OUT
= 1.2 V)
= 1.5 V)
T
T
= 1.375V
A
L = 2.2µH
A
T
5.0
A
= 25°C
= 25°C
= 25°C
220mA
236mA
5.5