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MaxLinear XR77103-A1R0, User Manual

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MaxLinear Confidential

TBD/18

010-A1R0UMR00

i

 

• www.maxlinear.com • 

010-A1R0UMR00 

XR77103-A1R0

Universal PMIC 3 Output 

Buck Regulator

EVB User Manual

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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