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ADP5042 датащи(PDF) 13 Page - Analog Devices

номер детали ADP5042
подробное описание детали  Micro PMU with 0.8 A Buck, Two 300 mA LDOs Supervisory, Watchdog and Manual Reset
PDF  32 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

ADP5042 датащи(HTML) 13 Page - Analog Devices

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ADP5042
Rev. 0 | Page 13 of 32
CH1 4V/DIV
B
W 20.0M
CH2 50mV/DIV
B
W 20.0M
CH3 50mA/DIV 1MΩ BW 20.0M
A CH3
28mA
200µs/DIV
5MS/s
200ns/pt
2
3
1
VOUT
SW
VOUT
LOAD
Figure 27. Buck Response to Load Transient, IOUT2 from 1 mA to 50 mA,
VOUT2 = 1.8 V, Auto Mode
A CH3
86mA
2
3
1
VOUT
SW
LOAD
CH1 4V/DIV
B
W 20.0M
CH2 50mV/DIV
B
W 20.0M
CH3 50mA/DIV 1MΩ BW 20.0M
200µs/DIV
10MS/s
100ns/pt
Figure 28. Buck Response to Load Transient, IOUT1 from 20 mA to 140 mA,
VOUT1 = 3.3 V, Auto Mode
3
4
2
VOUT1
LOAD
SW
CH2 4V/DIV
1MΩ BW 20.0M
CH3 50mV/DIV 1MΩ BW 20.0M
CH4 50mA/DIV 1MΩ BW 20.0M
200µs/DIV
50MS/s
20ns/pt
A CH3
145mA
Figure 29. Buck Response to Load Transient, IOUT2 from 20 mA to 180 mA,
VOUT1 = 1.8 V, PWM Mode
1
2
3
VOUT
EN
IIN
A CH2
1.14V
CH1 1V/DIV
1MΩ BW 500M
CH2 3V/DIV
1MΩ BW 500M
CH3 50mA/DIV 1MΩ BW 20.0M
50µs/DIV
2MS/s
500ns/pt
Figure 30. LDO1 Startup, VOUT3=1.5 V, IOUT3 = 5 mA
1
2
3
VOUT
IIN
EN
A CH2
1.14V
CH1 1V/DIV
1MΩ BW 500M
CH2 3V/DIV
1MΩ BW 500M
CH3 50mA/DIV 1MΩ BW 20.0M
100µs/DIV
1MS/s
1.0µs/pt
Figure 31. LDO2 Startup, VOUT3=3.3 V, IOUT3 = 5 mA
1.500
1.502
1.504
1.506
1.508
1.510
0.0001
0.001
0.01
0.1
OUTPUT CURRENT (A)
3.3V
4.5V
5.0V
5.5V
Figure 32. LDO1 Load Regulation Across Input Voltage, VOUT2 = 1.5 V



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