EVQ4559DN-00A – 1.5A, 55V, 2MHz STEP-DOWN CONVERTER EVALUATION BOARD

EVQ4559DN-00A Rev. 1.0

www.MonolithicPower.com

2

12/23/2013

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

© 2013 MPS. All Rights Reserved.

EVALUATION BOARD SCHEMATIC

C4

NS

C6

680pF

C7

NS

C5

100nF

D2

D3

NS

D1

NS

U1

C11

NS

C10

NS

GND

GND

VIN

VIN

EN

FREQ

GND

BST

5

1

4

3

7

2

6

8

SW

FB

COMP

MPQ4559

EN

EVQ4559DN-00A BILL OF MATERIALS

Qty

Ref

Value

Description

Package Manufacturer

Part Number

2

C1, C2

2.2µF

Ceramic Cap., 100V, X7R

1210

Murata

GRM32ER72A225KA35L

1

C3

0.1µF

Ceramic Cap., 100V, X7R

0805

TDK

C2012X7R2A104K

4

C4, C7,

C10,C11

Not Stuffed

1

C5

100nF

Ceramic Cap., 50V, X7R

0603

TDK

C1608X7R1H104K

1

C6

680pF

Ceramic Cap., 50V, X7R

0603

TDK

C1608X7R1H681K

1

C8

22µF

Ceramic Cap., 16V, X7R

1210

Murata

GRM32ER71C226ME18L

1

C9

0.1µF

Ceramic Cap., 50V, X7R

0805

TDK

C2012X7R1H104K

1

R1

24.9kΩ Film Res., 1%

0603

Yageo

RC0603FR-0724K9L

1

R2

100kΩ Film Res., 1%

0603

Yageo

RC0603FR-07100KL

1

R3

200kΩ Film Res., 1%

0603

Yageo

RC0603FR-07200KL

1

R4

40.2kΩ Film Res., 1%

0603

Yageo

RC0603FR-0740K2L

1

R5

42.2kΩ Film Res., 1%

0603

Yageo

RC0603FR-0742K2L

1

R6

124kΩ Film Res., 1%

0603

Yageo

RC0603FR-07124KL

2

D1, D3

Not Stuffed

1

D2

Diode Schottky, 90V, 2A

SMB

Diodes Inc

B290-13-F

Inductor, 4.3A

SMD

Toko

D104C-#919AS-100M

Inductor, 4A

SMD

Cooper

SD8350-100-R

1

L1

10µH

Inductor, 3.6A

SMD

Wurth

744066100

1

U1

Step-Down Regulator

SO8

MPS

MPQ4559DN