SP7655EB datasheet(1/10 Pages) SIPEX

номер детали	SP7655EB

подробное описание детали	Evaluation Board Manual

PDF	10 Pages

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производитель	SIPEX [Sipex Corporation]

домашняя страница	http://www.sipex.com

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1 / 10 page

Date: 2/01/05

SP7655 Evaluation Manual

SP7655EB SCHEMATIC

Easy Evaluation for the

SP7655ER 24V Input, 0 to 8A

Output Synchronous Buck

Converter

Built in Low Rds(on) Power FETs

UVLO Detects Both VCC and VIN

High Integrated Design, Minimal

Components

High Efficiency: 85%

Feature Rich: UVIN, Programmable

Softstart, External VCC Supply and

Output Dead Short Circuit Shutdown

SP7655

Evaluation Board Manual

All resistor & capacitor

i

0603 unless other wise

CBST

1uF

R3

499k,1%

L1 IHLP-2525CZ-01-2R2MTR

2.2uH, Irate=8A

U2

SPX5205

VIN

1

GND

2

EN

3

BYP

4

VOUT

5

C1

3.3uF

CVCC

2.2uF

U1

SP7655

PGND

1

PGND

2

PGND

3

GND

4

VFB

5

COMP

6

UVIN

7

GND

8

SS

9

VIN

10

VIN

11

VIN

12

VIN

13

LX

14

LX

15

LX

16

NC

17

BST

18

GND

19

GND

20

GND

21

VCC

22

LX

23

LX

24

LX

25

LX

26

DBST

CSS

47nF

CP1

15pF

3.30V

0-8A

50V

R2

21.5k,1%

GND

C3

47uF

C3

CERAMIC

1210

X5R

C4

3.3uF

Notes:

6.3V

24V

DCR=10.4mOhm

VIN

SD101AWS

U1 Bottom-Side Layout should

h

three Contacts which

isolated from one of another,

QT

& QB Drain Contact

d

Controller GND

Ctt

VOUT

RZ3

8.66k,1%

GND2

R4

100k,1%

C2

0.1uF

C1,C4

CERAMIC

1210

Y5V

50V

CZ3

120pF

CZ2

2,200pF

R1

68.1k,1%

RZ2

7.68k,1%

CF1

100pF

fs=300Khz

D1

MMSZ4678T1

Vz=12V

Аналогичный номер детали - SP7655EB

производитель	номер детали	датащи	подробное описание детали
Sipex Corporation	SP7655ER	1Mb / 16P	Wide Input Voltage Range, 8Amp 300kHz, Buck Regulator
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	SP7655ER/TR	121Kb / 12P	Wide Input Voltage Range 8A, 300kHz, Buck Regulator
	SP7655ER/TR	1Mb / 16P	Wide Input Voltage Range, 8Amp 300kHz, Buck Regulator
	SP7655ERL	1Mb / 16P	Wide Input Voltage Range, 8Amp 300kHz, Buck Regulator

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