ECJ-0EB0J475M datasheet(7/40 Pages) AD

Part #	ECJ-0EB0J475M

Description	Micro PMU with 1.2 A Buck Regulator

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Data Sheet

ADP5040

Rev. 0 | Page 7 of 40

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

14

13

12

1

3

4

VOUT2

15 FB2

VIN2

FB1

11 VOUT1

FB3

VIN3

2

VOUT3

EN3

5

NC

ADP5040

TOP VIEW

(Not to Scale)

NOTES

1. EXPOSED PAD MUST BE CONNECTED TO

SYSTEM GROUND PLANE.

Figure 2. Pin Configuration—View from Top of the Die

Table 7. Preliminary Pin Function Descriptions

Pin No.

Mnemonic

Description

1

FB3

LDO2 Feedback Input.

2

VOUT3

LDO2 Output Voltage.

3

VIN3

LDO2 Input Supply (1.7 V to 5.5 V).

4

EN3

Enable LDO2. EN3 = high: turn on LDO2; EN3 = low: turn off LDO2.

6

AVIN

Housekeeping Input Supply (2.3 V to 5.5 V).

7

VIN1

Buck Input Supply (2.3 V to 5.5 V).

8

SW

Buck Switching Node.

9

PGND

Dedicated Power Ground for Buck Regulator.

10

EN1

Enable Buck. EN1 = high: turn on buck; EN1 = low: turn off buck.

11

VOUT1

Buck Output Sensing Node.

12

FB1

Buck Feedback Input.

13

VIN2

LDO1 Input Supply (1.7 V to 5.5 V).

14

VOUT2

LDO1 Output Voltage.

15

FB2

LDO1 Feedback Input.

16

EN2

Enable LDO1. EN2 = high: turn on LDO1; EN2 = low: turn off LDO1.

17

MODE

Buck Mode. Mode = high: buck regulator operates in fixed PWM mode; mode = low: buck regulator operates in

power save mode (PSM) at light load and in constant PWM at higher load.

5, 18, 19, 20

NC

Not Connected.

0

EPAD

Exposed Pad. ( AGND = Analog Ground). The exposed pad must be connected to the system ground plane.

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ECJ-0EB0J475M Datasheet(PDF) 7 Page - Analog Devices

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