ADP5022 Analog Devices, ADP5022 Datasheet - Page 10

• Manufacturer Part Number: ADP5022
• Description: Dual 3 MHz, 600 mA Buck Regulator with 150 mA LDO
• Manufacturer: Analog Devices

ADP5022
Figure 16. Buck2 Efficiency vs. Load Current, Across Input Voltage,
Figure 17. Buck1 Efficiency vs. Load Current, Across Input Voltage,
Figure 18. Buck1 Efficiency vs. Load Current, Across Input Voltage,
100
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0.0001
90
80
70
60
50
40
30
20
10
0.001
0.001
0
0
0
0.001
VOUT2 = 1.8 V, PWM Mode
VOUT1 = 0.8 V, PWM Mode
VOUT1 = 0.8 V, Auto Mode
0.01
0.01
I
I
I
OUT
OUT
OUT
0.01
(A)
(A)
(A)
0.1
0.1
0.1
V
V
V
V
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
= 5.5V
= 4.5V
= 3.6V
= 2.4V
= 2.4V
= 3.6V
= 4.5V
= 5.5V
= 2.4V
= 3.6V
= 4.5V
= 5.5V
1
1
1
Rev. C | Page 10 of 28
Figure 19. Buck1 Efficiency vs. Load Current, Across Temperature,
Figure 20. Buck2 Efficiency vs. Load Current, Across Temperature,
Figure 21. Buck2 Switching Frequency vs. Output Current, Across
3.5
3.4
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
100
100
90
80
70
60
50
40
30
20
10
0.0001
90
80
70
60
50
40
30
20
10
0.0001
0
0
0
Temperature, VOUT2 = 1.8 V, PWM Mode
0.1
0.001
0.001
VOUT1 = 3.3 V, Auto Mode
VOUT2 = 1.8 V, Auto Mode
0.2
OUTPUT CURRENT (A)
I
I
OUT
OUT
0.3
0.01
0.01
(A)
(A)
0.4
T
T
T
0.1
0.1
A
A
A
= +25°C
= –40°C
= +85°C
T
T
T
T
T
T
0.5
A
A
A
A
A
A
= –40°C
= +25°C
= +85°C
= +25°C
= –40°C
= +85°C
0.6
1
1