EV2145-D-00A – 6A, 5.5V, 1.2MHZ, SYNC STEP-DOWN SWITCHER

EV2145-D-00A Rev.1.0

www.MonolithicPower.com

2

8/14/2014

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© 2014 MPS. All Rights Reserved.

EVALUATION BOARD SCHEMATIC

MP2145

GND

FB

VIN

C1

10uF

EN

VIN

2.8V to 5.5V

VOUT

1.2V/6A

SW

C6

22uF

R1

200k

R2

200k

PG

PG

L1

0.47uH

OUT

MODE/

VCON

MODE/

VCON

Ramp

C7

22uF

C2

10uF

3

uF

C

0.1

R3

R4

NS

NS

4

uF

C

1

5

NS

C

744373240047

NS

C8 C9 C10

NS NS

R5

R6

NS

100k

EV2145-D-00A BILL OF MATERIALS

Qty

RefDes

Value Description

Package

Manufacturer Manufacturer P/N

2

C1, C2

10μF

Ceramic Cap,10V,X5R

0805

muRata

GRM21BR61A106KE19L

1

C3

0.1μF

Ceramic Cap,16V,X7R

0603

muRata

GRM188R71C104KA01D

1

C4

1μF

Ceramic Cap,6.3V,X7R

0603

muRata

GRM188R60J105KA01D

2

C6,C7

22μF

Ceramic Cap,10V,X5R

0805

muRata

GRM21BR61A226ME51L

1

L1

0.47μH Inductor, 14.5A, 14mΩ

4x4mm

Wurth

744 373 240 047

1

R1

200K

Film Res,1%

0603

ROYAL

RL0603FR-07200KL

1

R2

200K

Film Res,1%

0603

ROYAL

RL0603FR-07200KL

1

R5

100K

Film Res,5%

0603

ROYAL

RC0603JR-07100KL

1

U1

MP2145

Synchronous step-down

switcher

QFN12

(2x3mm)

MPS

MP2145GD

0

C5,C8,

C9,C10,

R3,R4,R6

NS