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Axelite Confidential Materials, do not copy or distribute without written consent.

Rev.1.5 Nov.06, 2019

AX5510

Layout Guide

(1) MSOP-10L-EP/TDFN-10L

C2 must be placed between VIN and

PGND as closer as possible, VIN trace

should be wide and short. The PGND

trace can not directly connect to SGND,

the trace take a via to ground area of

bottom.

LX should connected to lnductor by wide and

short trace, keep sensitive components away

from this trace.

R2 and C8 should be connected

to FB pin by short trace.

AX5510EU/AX5510J10

VIN

C2

L1

GND

VOUT

LX

SGND

VCC

PGND

SS

FREQ

EN

1

2

3

4

5

6

7

8

9

10

LX

FB

COMP

Expose

Pad

VCC

C4

R3

C6

C7

R6

R8

R2

C5

R4

D1

C3

R7

GND

C4 must be placed between VCC pin

and SGND as closer as possible. The

SGND must connect to exposed pad

directly.

Frequency Selection, if FREQ connect to VCC,

the frequency is 1.2MHz, else connect R7 to

GND, the frequency is 680KHz.

C1

(2) MSOP/SOP-8L-EP

AX5510ES/AX5510EU8

GND

VCC

SS

FREQ

EN

LX

FB

COMP

Exposed

Pad

C3 must be placed between VOUT trace

and GND pin as closer as possible.

LX should connected to lnductor by wide and

short trace, keep sensitive components away

from this trace.

R2 and C8 should be connected

to FB pin by short trace.

VIN

C2

L1

GND

VOUT

C4

R3

C6

C7

R6

R8

R2

C5

R4

D1

C3

R7

GND

C4 must be placed between VCC pin

and GND pin as closer as possible.

The GND must connect to exposed

pad directly.

Frequency Selection, if FREQ connect to VCC,

the frequency is 1.2MHz, else connect R7 to

GND, the frequency is 680KHz.

VCC

VCC

VOUT

C1