EV8869W-L-00A – 12A HIGH EFFICIENCY SYNC. STEP DOWN SWITCHER WITH I2C

EV8869W-L-00A Rev. 1.0

www.MonolithicPower.com

2

7/18/2016

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2016 MPS. All Rights Reserved.

EVALUATION BOARD SCHEMATIC

0.1uF

C3

0.47uF

C5

1

2

1.5uH

L1

22uF

C2A

22uF

C2B

80.6K

R1

120K

R2

22nF

C6

100K

R12

R3

0

VIN

VOUT

22pF

C4

1

2

3

U2

22uF

C1A

0.1uF

C1

22uF

C1B

22uF

C2

22uF

C2C

NS

C2D

U3

66H

64H

62H

9

2

3

4

5

1

14

8

11

10

U1

AGND

PGND

AGND

AGND

AGND

AGND

PGND

PGND

NS

C1D

NS

C1C

NS

C2E

R4

10k

60H

EV8869W-L-00A BILL OF MATERIALS

Qty

Ref

Value

Description

Package

Manufacturer

Manufacturer P/N

1

R1

80.6k

Film Res,1%

0603

ROYAL

RC0603FR-0780K6L

1

R2

120k

Film Res,1%

0603

ROYAL

RL0603FR-07120KL

1

R3

0 Ω

Film Res,1%

0603

ROYAL

RC0603FR-070RL

1

R4

10k

Film Res,1%

0603

ROYAL

RL0603FR-0710KL

3

R5, R9,

R10

499k

Film Res,1%

0603

ROYAL

RL0603FR-07499KL

0

R6

NS

2

R7,R12

100k

Film Res,1%

0603

ROYAL

RL0603FR-07100KL

2

R8,R11

300k

Film Res,1%

0603

ROYAL

RL0603FR-07300KL

2

C1, C3

0.1μF

Ceramic Cap,

25V,X7R

0603

muRata

GRM188R71E104KA01D

2

C1A,C1B,

22μF

Ceramic

Cap,25V,X5R

1206

muRata

GRM31CR61E226KE15L

4

C2,C2A,

C2B,C2C

22μF

Ceramic

Cap ，

25V,X5R

0805

muRata

GRM21BR61E226ME44L

0

C1C,C1D,

C2D,C2E

NS

1

C4

22pF

Ceramic Cap,

50V, X7R

0603

muRata

GRM1885C1H220JA01D

1

C5

0.47μF

Ceramic

Cap,16V,X7R

0603

muRata

GRM188R71C474KA88D

1

C6

22nF

Ceramic

Cap,16V,X7R

0603

muRata

GRM188R71C223KA01D

1

L1

1.5μH

Inductor,

DCR=2.1mΩ

SMD

Wurth

7443320150

1

U1

MP8869W

Step-Down

Converter with I2C

Interface

QFN14

(3*4)

MPS

MP8869WGL

1

U2

Jumper

3 pin jumper

DIP

any

1

U3

Switch-4

Switch-4

SMD

Wurth

416 131 160 804