ADP5023 Analog Devices, ADP5023 Datasheet - Page 10

• Manufacturer Part Number: ADP5023
• Description: Dual 3 MHz, 800 mA Buck Regulator with One 300 mA LDO
• Manufacturer: Analog Devices

ADP5023
Figure 15. BUCK1 Efficiency vs. Load Current, Across Temperature,
Figure 16. BUCK2 Efficiency vs. Load Current, Across Temperature,
Figure 17. BUCK1 Efficiency vs. Load Current, Across Temperature,
100
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0.001
0.001
0.001
0
0
0
V
IN
= 3.9 V, V
V
V
OUT2
OUT1
0.01
0.01
0.01
= 1.8 V, Auto Mode
= 0.8 V, Auto Mode
OUT1
I
I
I
= 3.3 V, Auto Mode
OUT
OUT
OUT
(A)
(A)
(A)
0.1
0.1
0.1
+85°C
+25°C
–40°C
+25°C
+85°C
–40°C
+85°C
+25°C
–40°C
1
1
1
Rev. A | Page 10 of 28
Figure 19. Typical Waveforms, V
Figure 20. Typical Waveforms, V
Figure 18. BUCK2 Switching Frequency vs. Output Current, Across
1
2
4
1
2
4
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
CH1
CH1
0
50.0mV
50.0mV
VOUT
0.2
Temperature, V
VOUT
I
SW
SW
I
SW
SW
CH2 500mA Ω
CH4 2.00V
CH2 500mA Ω
CH4 2.00V
T
T
0.4
OUT2
I
OUT1
OUT2
OUT
0.6
= 1.8 V, PWM Mode
= 3.3 V, I
= 1.8 V, I
(A)
M 4.00µs
M 4.00µs
T
T
28.40%
28.40%
0.8
OUT1
OUT2
A CH2
A CH2
= 30 mA, Auto Mode
= 30 mA, Auto Mode
Data Sheet
T
T
T
1.0
A
A
A
= +25°C
= –40°C
= +85°C
240mA
220mA
1.2