Preliminary UG-XXXX
EVAL-ADIN1110EBZ User Guide
Rev. PrA | Page 4 of 23
EVALUATION BOARD HARDWARE
POWER SUPPLIES
The EVAL-ADIN1110EBZ is powered by a single, external, 5-
30 V BOARD_PWR supply rail that can be supplied either via
the P1 connector or via the P2 plug. Alternatively, the board
can be powered from USB via the P5 connector. The supply of
choice is selected via the P4 link (see Figure 4).
Figure 4. Schematic Snapshot – BOARD_PWR
All ADIN1110 supplies are regulated from the BOARD_PWR
rail, providing supply rails required for AVDD_H, AVDD_L,
VDDIO and DVDD_1P1. The rest of the EVAL-
ADIN1110EBZ power requirements are generated from
BOARD_PWR supply. The LT8619 regulator generates a 3.3 V rail
from which the LTC3547 regulator in turn generates a 1.8 V and
1.1 V rail. The ADIN1110 DVDD_1P1 rail can be set up to use its
own internally generated DLDO_1P1 rail or the LTC3547-
generated 1.1 V rail via the P17 link. AVDD_H, AVDD_L and
VDDIO can be configured for 1.8 V or 3.3 V rail connection via
the P13, P14 and P15 link respectively. Alternatively, AVDD_H,
AVDD_L and VDDIO can be shorted together via P19 & P20 and
their value determined by a single link connection of P13, P14 or
P15. See Figure 5.
Figure 5. Simplified Schematic Snapshot – ADIN1110 Power Supply Rails
The ADuCM4050 microcontroller supply can be supplied from
either the 3.3 V or 1.8 V rail (via P11 link). Table 1 captures the
default position of all board link configurations.
Table 1. Default Board Link Configuration
Link no.
Default
Position
Link Function
J101
Earth
Shield shorted either directly to Earth, or via 4nF cap.
P4
EXT
USB – Connects 5V USB supply to the input of the LT8619.
EXT - Connects externally supplied power from P1 or P2 to the input of LT8619.
P10
Burst
FORCED CURRENT – (H) Force Continuous mode of operation of LT8619.
PULSE SKIP (o/c) - Pulse-Skipping mode of operation of LT8619.
BURST (L) – Burst mode of operation of LT8619.
J2
Inserted
This link supplies 3.3V rail to circuitry on the board, beyond the LT8619.
P11
3V3
ADuCM4050 supply voltage – choice of 3.3V or 1.8V.
P13
3V3
AVDD_H supply voltage – choice of 3.3V or 1.8V.
P14
3V3
AVDD_L supply voltage – choice of 3.3V or 1.8V.
P15
3V3
VDDIO supply voltage – choice of 3.3V or 1.8V.
P17
DVDD_1P1
DVDD_1P1 supply voltage – choice of EXT 1V1 rail or internally generated DLDO_1P1 (silkscreen label
“DVDD_1P1”)
P19
Not inserted
Option to short AVDD_H to AVDD_L.
P20
Not inserted
Option to short AVDD_L to VDDIO.
P8
BUTTON RESET
Option to hold ADuCM4050 in reset (GND RESET) or short it to the S5 push-button reset (BUTTON
RESET).
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