ADP5042 Analog Devices, ADP5042 Datasheet - Page 11
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ADP5042
Manufacturer Part Number
ADP5042
Description
Micro PMU with 0.8 A Buck, Two 300 mA LDOs, Supervisory, Watchdog and Manual Reset
Manufacturer
Analog Devices
Datasheet
1.ADP5042.pdf
(32 pages)
Data Sheet
Figure 15. Buck Efficiency vs. Load Current, Across Temperature, VOUT1 = 1.8 V,
Figure 16. Buck Efficiency vs. Load Current, Across Temperature, VOUT1 = 3.3 V,
Figure 17. Buck Efficiency vs. Load Current, Across Temperature, VOUT1 = 1.8 V,
100
100
100
90
80
70
60
50
40
30
20
10
0.0001
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0.0001
0.001
0
0
0
–40°C
+25°C
+85°C
–40°C
+25°C
+85°C
0.001
0.001
–40ºC
+25ºC
+85ºC
0.01
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
PWM Mode
Auto Mode
Auto Mode
0.01
0.01
0.1
0.1
0.1
1
1
1
Rev. A | Page 11 of 32
Figure 19. Buck Switching Frequency vs. Output Current, Across Temperature,
Figure 20. Typical Waveforms, VOUT1 = 3.3 V, I
Figure 18. Buck DC Current Capability vs. Input Voltage, VOUT1 = 1.8 V
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
3.10
3.05
3.00
2.95
2.90
2.85
1
2
3
2.6
CH1
CH2
CH3
0
20.0mV/DIV
200mA/DIV 1MΩ
2.0V/DIV
VOUT
I
SW
0.1
SW
VOUT1 = 1.8 V, PWM Mode
0.2
1MΩ
3.6
OUTPUT CURRENT (A)
INPUT VOLTAGE (V)
B
B
B
W
W
W
0.3
20.0M
20.0M
20.0M
–40°C
+25°C
+85°C
0.4
A CH1
4.6
0.5
OUT1
2.4mV
= 30 mA, Auto Mode
0.6
ADP5042
5.0µs/DIV
20.0MS/s
50.0ns/pt
5.6
0.7
0.8