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ADP5042 Datasheet(PDF) 27 Page - Analog Devices

Part # ADP5042
Description  Micro PMU with 0.8 A Buck, Two 300 mA LDOs Supervisory, Watchdog and Manual Reset
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP5042 Datasheet(HTML) 27 Page - Analog Devices

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ADP5042
Rev. 0 | Page 27 of 32
EVALUATION BOARD SCHEMATICS AND ARTWORK
SW
VOUT1
PGND
MODE
C6
10µF
L1
1µH
VIN1
TP1
TP2
TP11
TP6
TP5
TP8
EN3
EN1
VIN2
VIN3
EN2
AGND
C2
1µF
VOUT2
VOUT3
WSTAT
WDI1
WDI2
nRSTO
TP12
C4
1µF
C5
4.7µF
VIN1 = 2.3V
TO 5.5V
AVIN
RFILT
30
Ω
AVIN
VIN2 = 1.7V
TO 5.5V
C1
1µF
VIN3 = 1.7V
TO 5.5V
C3
1µF
VOUT1 AT
800mA
VOUT2 AT
300mA
VOUT3 AT
300mA
TP4
TP9
TP10
TP7
TP3
EN_BK
BUCK
EN_LDO1
LDO1
EN_LDO2
LDO2
AVIN
Figure 67. Evaluation Board Schematic
SUGGESTED LAYOUT
0.5
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
1.0
1.5
2.0
2.5
3.0
3.5
VIAs LEGEND
mm
mm
6.0
6.5
MODE
VIN1
SW
PGND
EN1
4.0
4.5
5.0
5.5
6.0
C6 - 10µF
6.3V/XR5 0603
GPL
1.5V
3.3V
7.0
TOP LAYER
SECOND LAYER
PPL
C4 – 1µF
6.3V/XR5
0402
C1 – 1µF
10V/XR5
0402
C2 – 1µF
10V/XR5
0402
PPL = POWER PLANE (+4V)
GPL = GROUND PLANE
1.8V
AGND
ADP5042
GPL
GPL
GPL
GPL
PIN 1
EN2
NC
WDI1
WMOD
MR
C3 – 1µF
6.3V/XR5
0402
GPL
GPL
GPL
GPL
GPL
PPL
PPL
PPL
Figure 68. Layout



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