MP2113 – 1.5A, SYNCHRONOUS STEP-DOWN CONVERTER WITH DYNAMIC VOLTAGE CONTROL

MP2113 Rev. 1.0

www.MonolithicPower.com

11

4/4/2011

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about 1.6W when MP2113 is operating in a 70

°C

ambient temperature environment:

W

6

.

1

W

/

C

50

C

70

C

150

PD

o

o

o

MAX

=

−

=

PCB Layout

The high current paths (GND, IN and SW) should

be placed very close to the device with short,

direct and wide traces. Input capacitors should be

placed as close as possible to the respective IN

and GND pins. The external feedback resistors

shall be placed next to the FB pins. Keep the

switching nodes SW short and away from the

feedback network.

C2

C1

L1

R4

R1

GND

FB

GND

IN

SW

CTRL

R3

GND

VIN

VOUT

DNR

5

6

7

2

3

4

8

1

PG

EN

GND

Top layer

Bottom layer

Figure 2-PCB Layout