MaxLinear XR77103-A1R0 User Manual Download Page 12

XR77103-A1R0 Universal PMIC 3 Output Buck Regulator EVB User Manual

XR77103EVB-A1R0 Schematic

March 10, 2022

010-A1R0UMR00

7

XR77103EVB-A1R0 Schematic

Figure 4:  

XR77103EVB-A1R0 Schematic

EN

SYNC

FB3

SYNC

FB2

FB1

PG

FB1

FB2

EN

FB3

V5V

VIN

VOUT3

V5V

VIN3

VIN

VIN1

VOUT2

VIN2

VOUT3

VIN

VOUT2

V5V

VOUT1

VOUT1

VIN1

VIN2

VIN3

C11

1nF

J25

PGND

1

C10

4.7uF

ICE1

XR77103-

$5

VOUT3

1

COMP3

2

N.C

3

VIN

4

GND

5

V5V

6

COMP1

7

VOUT1

8

BST

1

9

VIN1

10

LX1

11

LX1

12

LX2

13

LX2

14

VIN2

15

BST

2

16

PGOOD

24

N.C

23

N.C

22

N.C

21

N.C

20

DGND

19

COMP2

18

VOUT2

17

BST

3

32

VIN3

31

LX3

30

LX3

29

VIN

28

AG

ND

27

EN

26

SYNC

25

e-

PAD

33

R22

N.M

C14

N.M

R4

0

R5

N.M

C4

N.M

C24

N.M

TP5

+

C30

N.M

J16

PGND

1

R15

N.M

C22

47nF

C26

N.M

C7

4.7uF

J36

PGND

1

R8

10k

R13

0

J3

J_EN

1

2

3

TP3

R16

N.M

R18

N.M

C6

4.7uF

F1

3.5A FUSE

C33

N.M

R11

10k

R21

N.M

R14

0

R20

N.M

C31

22uF

D2

N.M

C32

N.M

C18

4.7uF

J39

VIN_EXTERNAL

1

C12

1uF

TP4

J14

Jumper

1

2

TP8

J1

VOUT3

1

H1

C9

N.M

C27

22uF

R3

N.M

H2

C8

1nF

H3

R26

N.M

D1

N.M

J21

PGND

1

R23

N.M

J31

VOUT1

1

TP2

J33

VOUT2

1

TP7

H4

R1

N.M

R24

N.M

TP1

C34

N.M

J38

VIN_EXTERNAL

1

J23

VIN3

1

J7

AGND

1

L3

3.3uH

C13

4.7uF

C35

N.M

J10

AGND

1

+

C2

N.M

TP6

C5

47nF

J11

Jumper

1

2

J15

Jumper

1

2

R12

10k

J13

VIN1

1

J6

EN

1

+

C25

N.M

J18

VIN2

1

C15

N.M

C1

N.M

R7

10k

J35

PGND

1

R25

N.M

C16

1nF

L2

.

uH

C29

22uF

J20

Jumper

1

2

C3

22uF

J5

VIN

1

R2

N.M

J8

J_PGOOD

1

2

3

C21

47nF

J12

SYNC

1

R19

N.M

C17

1nF

J4

PGND

1

L1

3.3uH

C28

N.M

J24

Jumper

1

2

R6

0

VIN

PGOOD

Summary of Contents for XR77103-A1R0

Page 1: ...MaxLinear Confidential TBD 18 010 A1R0UMR00 i www maxlinear com 010 A1R0UMR00 XR77103 A1R0 Universal PMIC 3 Output Buck Regulator EVB User Manual...

Page 2: ...lease Date Change Description 010 A1R0UMR00 March 10 2022 Updated Quick Set Up Factory Settings section Simplified Block Diagram XR77103 A1R0 EVB figure Jumper J8 Pull Up Options for the PGOOD Pin tab...

Page 3: ...nts Introduction 1 Quick EVB Set Up and Start Up 1 Factory Settings 1 Quick Start Up 1 Reference Documentation 3 Ordering Information 3 Evaluation Board Overview 4 I O and Test Points 4 System Set Up...

Page 4: ...t of Figures Figure 1 Connecting and Monitoring VIN and VOUT 2 Figure 2 Top View of XR77103 A1R0 REV2 0 3 Figure 3 Simplified Block Diagram XR77103 A1R0 EVB 4 Figure 4 XR77103EVB A1R0 Schematic 7 Figu...

Page 5: ...1 Jumper Connections for VIN VOUT and PGND 1 Table 2 Evaluation Board Ordering Part Number 3 Table 3 Test Points 4 Table 4 Factory Settings 5 Table 5 Jumper J3 Options for the EN Pin 5 Table 6 Jumper...

Page 6: ...2 Connect a turned off power supply that is within the above VIN specification from 5 5V to 14V 12V typical to VIN and VIN with short and thick leads Use test pins EXT VIN J39 and AGND J7 to connect...

Page 7: ...R0 Universal PMIC 3 Output Buck Regulator EVB User Manual Quick EVB Set Up and Start Up March 10 2022 010 A1R0UMR00 2 Figure 1 Connecting and Monitoring VIN and VOUT VIN VIN PGND1 VOUT1 VOUT2 PGND2 PG...

Page 8: ...mponent calculations This manual provides the EVB schematics XR77103EVB A1R0 Schematic on page 7 the PCB layout XR77103EVB A1R0 PCB Layers on page 8 and the bill of materials XR77103EVB A1R0 Bill of M...

Page 9: ...t points are available for VIN TP8 the LX switching nodes TP6 for LX1 TP7 for LX2 and TP1 for LX3 the compensation pins TP4 for COMP1 TP5 for COMP2 TP3 for COMP3 and PGOOD TP2 for monitoring The PGOOD...

Page 10: ...ings Jumper Factory Setting Description EN Pin J3 Jumper 1 2 EN pin is tied to VCC and channels are enabled at power up PGOOD Pin J8 Jumper 1 2 PGOOD is pulled up to VCC 5V Operation J11 No jumper LDO...

Page 11: ...ted to VIN1 VIN2 and VIN3 Jumper J15 Jumper J15 is available to ground SYNC Factory default is that the SYNC pin is not grounded on the board When not grounded the SYNC pin may be connected and synchr...

Page 12: ...M R4 0 R5 N M C4 N M C24 N M TP5 C30 N M J16 PGND 1 R15 N M C22 47nF C26 N M C7 4 7uF J36 PGND 1 R8 10k R13 0 J3 J_EN 1 2 3 TP3 R16 N M R18 N M C6 4 7uF F1 3 5A FUSE C33 N M R11 10k R21 N M R14 0 R20...

Page 13: ...al PMIC 3 Output Buck Regulator EVB User Manual XR77103EVB A1R0 PCB Layers March 10 2022 010 A1R0UMR00 8 XR77103EVB A1R0 PCB Layers Figure 5 Silkscreen Top Figure 6 Assembly Top Layer 1 Figure 7 Layer...

Page 14: ...XR77103 A1R0 Universal PMIC 3 Output Buck Regulator EVB User Manual XR77103EVB A1R0 PCB Layers March 10 2022 010 A1R0UMR00 9 Figure 9 Assembly Bottom...

Page 15: ...a GRM188R71H102KA01D 0603 6 1 C12 CAP CER 1uF 10V X7R 10 Murata GRM188R71A105KA61D 0603 7 6 R4 R6 R13 R14 R27 R28 Resistor 0 1 10W SMD Panasonic ERJ 3GEY0R00V 0603 8 4 R7 R8 R11 R12 Resistor 10 0k 1 1...

Page 16: ...nless MaxLinear Inc receives in writing assurances to its satisfaction that a the risk of injury or damage has been minimized b the user assumes all such risks c potential liability of MaxLinear Inc i...

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