SP7655ERLSLASHTR datasheet(1/16 Pages) SIPEX

부품명	SP7655ERL/TR

상세설명	Wide Input Voltage Range, 8Amp 300kHz, Buck Regulator

PDF	16 Pages

Scroll/Zoom	100%

제조업체	SIPEX [Sipex Corporation]

홈페이지	http://www.sipex.com

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1 / 16 page

Rev E: 3/2/07

SP7655 Wide Input Voltage Range 8A, 300kHz, Buck Regulator

SP7655

FEATURES

■

2.5V to 28V Step Down Achieved Using Dual Input

■

Output Voltage down to 0.8V

■

8A Output Capability

■

Built in Low RDSON Power Switches (15m typ)

■

Highly Integrated Design, Minimal Components

■

300 kHz Fixed Frequency Operation

■

UVLO Detects Both VCC and V IN

■

Over Temperature Protection

■

Short Circuit Protection with Auto-Restart

■

Wide BW Amp Allows Type II or III Compensation

■

Programmable Soft Start

■

Fast Transient Response

■

High Efficiency: Greater than

95%Possible

■

Non-

synchronous Start-Up into a Pre-Charged Output

■

Lead Free, RoHS Compliant Package:

Small 7mm x 4mm DFN

■

U.S. Patent #6,922,041

Wide Input Voltage Range, 8Amp

300kHz, Buck Regulator

The SP7655 is a synchronous step-down switching regulator optimized for high efficiency. The part is designed to be

especially attractive for dual supply, 12V or 24V distributed power systems stepped down with 5V used to power the

controller. This lower VCCvoltage minimizes power dissipation in the part and is used to drive the top switch. The

SP7655 is designed to provide a fully integrated buck regulator solution using a fixed 300kHz frequency, PWM voltage

mode architecture. Protection features include UVLO, thermal shutdown and output short circuit protection. The

SP7655 is available in the space saving DFN package

.

TYPICAL APPLICATION CIRCUIT

DESCRIPTION

Power Blox TM

16V

CBST

6,800pF

L1

2.2uH, Irate=8A

C1

22uF

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

22pF

3.30V

0-8A

RSET

21.5k ,1%

GND

C3

47uF

C4

22uF

Notes:

12V

VIN

SD101AWS

have three contacts isolated from

one another: Vin, SWNODE, and GND.

RZ3

7.15k

1%

VOUT

CZ3

150pF

CZ2

1,000pF

R1

68.1k ,1%

RZ2

15k ,1%

CF1

100pF

fs=300Khz

ENABLE

+5V

VCC

2. RSET=54.48/(Vout-0.8V) KOhms

(note 2)

6.3V

1. U1 Bottom side layout should

16V

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

TOP VIEW

Heatsink Pad 1

Connect to Lx

Heatsink Pad 2

Connect to GND

Heatsink Pad 3

Connect toVIN

PGND

GND

VFB

COMP

UVIN

GND

SS

VIN

LX

VCC

GND

BST

NC

LX

DFN PACKAGE

7mm x 4mm

SP7655

PGND

VIN

유사한 부품 번호 - SP7655ERL/TR

제조업체	부품명	데이터시트	상세설명
Sipex Corporation	SP7655ER	491Kb / 10P	Evaluation Board Manual
	SP7655ER-L/TR	121Kb / 12P	Wide Input Voltage Range 8A, 300kHz, Buck Regulator
	SP7655ER/TR	121Kb / 12P	Wide Input Voltage Range 8A, 300kHz, Buck Regulator

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