MaxLinear XR77103-A1R0, User Manual

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XR77103-A1R0 Universal PMIC 3 Output Buck Regulator EVB User Manual Evaluation Board Overview
March 10, 2022 010-A1R0UMR00 4
Evaluation Board Overview
The XR77103-A1R0 EVB block diagram is shown in Figure 3 .
Figure 3: Simplified Block Diagram, XR77103-A1R0 EVB
I/O and Test Points
VIN, LX and PGOOD Test Points
Test 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 output can be used externally. For more information about PGOOD options, see “Jumper J8” on page 5 .
Table 3: Test Points
Test Point Function
TP1 LX3
TP2 PGOOD
TP3 COMP3
TP4 COMP1
TP5 COMP2
TP6 LX1
TP7 LX7
TP8 VIN
XR77103-A1R0
V
IN
V
OUT1
EN
PGOOD
V
CC
V
OUT2
V
OUT3
V
IN1
V
IN2
V
IN3
J3
J14
J20
J24
V
CC
J8
V
CC
J11
J15 (SYNC)