DCDC_OUT

DCDC_HGND

HLDO_IN

HLDO_OUT

HGND

INP

INN

DCDC_IN

DCDC_GND

LDO_OUT

VDD

CLKIN

DOUT

GND

NC

DIAG

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

Not to scale

3

AMC3306M25

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5 Pin Configuration and Functions

DWE Package

16-Pin SOIC

Top View

Pin Functions

PIN

TYPE

DESCRIPTION

NO.

NAME

1

DCDC_OUT

Power

High-side output of the isolated DC/DC converter; connect this pin to the HLDO_IN pin. See

the Power Supply Recommendations section for power-supply decoupling

recommendations.

2

DCDC_HGND

Power

High-side ground reference for the isolated DC/DC converter; connect this pin to the HGND

pin and to one of the shunt resistor pins.

3

HLDO_IN

Power

Input of the high-side low-dropout (LDO) regulator; connect this pin to the DCDC_OUT pin.

See the Power Supply Recommendations section for power-supply decoupling

recommendations.

4

NC

—

No internal connection. Connect this pin to the high-side ground or leave this pin

unconnected (floating).

5

HLDO_OUT

Power

Output of the high-side LDO. See the Power Supply Recommendations section for power-

supply decoupling recommendations.

6

INP

Input

Noninverting analog input

7

INN

Input

Inverting analog input

8

HGND

Analog

High-side analog ground; connect this pin to the DCDC_HGND pin and to one of the shunt

resistor pins.

9

GND

Analog

Low-side analog ground; connect this pin to the DCDC_GND pin.

10

DOUT

Output

Modulator data output

11

CLKIN

Input

Modulator clock input with internal pulldown resistor (typical value: 1.5 MΩ)

12

VDD

Power

Low-side power supply. See the Power Supply Recommendations section for power-supply

decoupling recommendations.

13

LDO_OUT

Power

Output of the primary-side LDO; connect this pin to the DCDC_IN pin. See the Power

Supply Recommendations section for power-supply decoupling recommendations.

14

DIAG

Output

Active-low, open-drain status indicator output; connect this pin to the pull-up supply (for

example, VDD) using a resistor or leave this pin floating if not used.

15

DCDC_GND

Power

Low-side ground reference for the isolated DC/DC converter; connect this pin to the GND

pin.

16

DCDC_IN

Power

Primary-side input of the isolated DC/DC converter; connect this pin to the LDO_OUT pin.

See the Power Supply Recommendations section for power-supply decoupling

recommendations.