EN6337QA

www.altera.com/enpirion, Page 2

Ordering Information

Part Number

Package Markings

Package Description

EN6337QA

N6337A

-40 to +105

38-pin (4mm x 7mm x 1.85mm) QFN T&R

EVB-EN6337QA

N6337A

QFN Evaluation Board

Pin Assignments (Top View)

Figure 3: Pin Out Diagram (Top View)

NOTE A: NC pins are not to be electrically connected to each other or to any external signal, ground, or voltage.

However, they must be soldered to the PCB. Failure to follow this guideline may result in part malfunction or damage.

NOTE B: Shaded area highlights exposed metal below the package that is not to be mechanically or electrically

connected to the PCB. Refer to Figure 11 for details.

NOTE C: White ‘dot’ on top left is pin 1 indicator on top of the device package.

Pin Description

PIN

NAME

FUNCTION

1-2, 12,

34-38

NC(SW)

NO CONNECT – These pins are internally connected to the common switching node of the

internal MOSFETs. They are not to be electrically connected to any external signal, ground, or

voltage. Failure to follow this guideline may result in damage to the device.

3-4

NC

NO CONNECT – These pins may be internally connected. Do not connect to each other or to

any other electrical signal. Failure to follow this guideline may result in device damage.

5-11

VOUT

Regulated converter output. Connect these pins to the load and place output capacitor

between these pins and PGND pins 13-15.

13-18

PGND

Input/Output power ground. Connect these pins to the ground electrode of the input and output

filter capacitors. See VOUT and PVIN pin descriptions for more details.

19-21

PVIN

Input power supply. Connect to input power supply. Decouple with input capacitor to PGND

pins 16-18.

22

PG

PMOS gate. Connect a 560 Ohm resistor from PVIN to PG. An optional capacitor (22nF) may

be placed from PG to BGND to help filter PG in noisy environments.

23

BTMP

Bottom plate ground.

NC(SW)

NC

NC

VOUT

VOUT

1

2

3

4

5

6

KEEP OUT

BGND

VDDB

BTMP

PG

PVIN

25

24

23

22

21

20

NC(SW)

PVIN

39

PGND

10395

June 26, 2015

Rev B