ADP5042

Manufacturer Part NumberADP5042
DescriptionMicro PMU with 0.8 A Buck, Two 300 mA LDOs, Supervisory, Watchdog and Manual Reset
ManufacturerAnalog Devices
ADP5042 datasheet
 


1
2
3
4
5
6
7
8
9
10
11
Page 11
12
Page 12
13
Page 13
14
Page 14
15
Page 15
16
Page 16
17
Page 17
18
Page 18
19
Page 19
20
Page 20
21
22
23
24
25
26
27
28
29
30
31
32
Page 16/32

Download datasheet (2Mb)Embed
PrevNext
ADP5042
100
CH2; V
CH2; V
CH2; V
CH2; V
CH2; V
10
0.0001
0.001
0.01
0.1
LOAD (mA)
Figure 45. LDO1 Output Noise vs. Load Current, Across Input and Output Voltage
100
CH3; VOUT = 3.3V; VIN = 5V
CH3; VOUT = 3.3V; VIN = 3.6V
CH3; VOUT = 2.8V; VIN = 3.1V
CH3; VOUT = 1.5V; VIN = 5V
CH3; VOUT = 1.5V; VIN = 1.8V
10
0.0001
0.001
0.01
0.1
LOAD (mA)
Figure 46. LDO2 Output Noise vs. Load Current, Across Input and Output Voltage
100
VOUT2 = 3.3V, VIN2 = 3.6V, I
VOUT2 = 1.5V, VIN2 = 1.8V, I
VOUT2 = 2.8V, VIN2 = 3.1V, I
10
1.0
0.1
0.01
10
100
1k
10k
FREQUENCY (Hz)
Figure 47. LDO1 Noise Spectrum Across Output Voltage, VIN = VOUT + 0.3 V
= 3.3V; VIN = 5V
OUT
= 3.3V; VIN = 3.6V
OUT
= 2.8V; VIN = 3.1V
OUT
= 1.5V; VIN = 5V
OUT
= 1.5V; VIN = 1.8V
OUT
1
10
100
1k
Figure 48. LDO2 Noise Spectrum Across Output Voltage, VIN = VOUT + 0.3 V
1
10
100
1k
= 300mA
LOAD
= 300mA
LOAD
= 300mA
LOAD
100k
1M
10M
Rev. A | Page 16 of 32
100
VOUT3 = 3.3V, VIN3 = 3.6V, I
VOUT3 = 1.5V, VIN3 = 1.8V, I
VOUT3 = 2.8V, VIN3 = 3.1V, I
10
1
0.1
0.01
1
10
100
1k
10k
FREQUENCY (Hz)
100
VOUT2 = 3.3V, VIN2 = 3.6V, I
VOUT3 = 3.3V, VIN3 = 3.6V, I
VOUT2 = 1.5V, VIN2 = 1.8V, I
10
1.0
0.1
VOUT3 = 1.5V, VIN3 = 1.8V, I
= 300mA
LOAD
VOUT2 = 2.8V, VIN2 = 3.1V, I
= 300mA
LOAD
VOUT3 = 2.8V, VIN3 = 3.1V, I
= 300mA
LOAD
0.01
10
100
1k
10k
100k
FREQUENCY (Hz)
Figure 49. LDO1 vs. LDO2 Noise spectrum
–10
1mA
10mA
–20
100mA
200mA
–30
300mA
–40
–50
–60
–70
–80
–90
–100
10
100
1k
10k
100k
FREQUENCY (Hz)
Figure 50. LDO2 PSRR Across Output Load, VIN3 = 3.3 V, VOUT3 = 2.8 V
Data Sheet
= 300mA
LOAD
= 300mA
LOAD
= 300mA
LOAD
100k
1M
= 300mA
LOAD
= 300mA
LOAD
= 300mA
LOAD
1M
10M
1M
10M