SP6137 datasheet(1/13 Pages) SIPEX

tên linh kiện	SP6137

Giải thích chi tiết về linh kiện	Wide Input, 900KHz Synchronous PWM Controller

PDF	13 Pages

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nhà sản xuất	SIPEX [Sipex Corporation]

Trang chủ	http://www.sipex.com

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Date: 7/28/04

SP6137 Wide Input, 900KHz Synchronous PWM Controll

SP6137

FEATURES

■ 2.5V to 20V Step Down Achieved Using Dual Input

■ Small 10-Pin MSOP Package

■ 2A to 15A Ouput Capability

■ Highly Integrated Design, Minimal Components

■ UVLO Detects Both VCC and VIN

■ Short Circuit Protection with Auto-Restart

■ On-Board 1.5Ω sink (2Ω source) NFET Drivers

■ Programmable Soft Start

■ Fast Transient Response

■ High Efficiency: Greater than 94% Possible

■ A Synchronous Start-Up into a Pre-Charged Output

Wide Input, 900KHz Synchronous PWM Controller

DESCRIPTION

The SP6137 is a synchronous step-down switching regulator controller optimized for high efficiency. The part is

designed to be especially attractive for dual supply, 12V step down with 5V used to power the controller. This lower VCC

voltage minimizes power dissipation in the part. The SP6137 is designed to drive a pair of external NFETs using a fixed

900kHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown and output

short circuit protection. The SP6137 is available in the cost and space saving 10-pin MSOP

.

®

TYPICAL APPLICATION CIRCUIT

VCC

GL

GND

VFB

COMP

SP6137

10 Pin MSOP

1

2

3

4

5

10

9

8

7

6

BST

GH

SWN

SS

UVIN

APPLICATIONS

■ 12V DPA

■ Communications Systems

■ Graphics Cards

Now Available in Lead Free Packaging

8 7 6 5

1 2 3

4

CSS

47nF

CBST

1µF

L1 SC5018-2R7M

2.7µH @ 12A

DCR=4.30mΩ

FDS6676S

14.5A, 6.0mΩ

C3

47µF

6.3V

R1

68.1k, 1%

VOUT≤VIN

1.8V @ 10A

R2

21.5k, 1%

CVCC

10µF

6.3V

R3

221k, 1%

R4

100k, 1%

CF1

100pF

CZ2

820pF

CP1

56pF

RZ2

40.2k, 1%

FDS6676S

14.5A, 6mΩ

8 7 6 5

4

1 2 3

DBST

MBR0530

SP6137

1

2

3

4

5

10

9

8

7

6

VCC

GL

GND

VFB

COMP

BST

GH

SWN

SS

UVIN

VCC

GND 3

RLF

3.0,5%

U1

CVCC

Ceramic

8050

X5R

QT

SS

GND2

C3, C4

Ceramic

1210

X5R

C4

47µF

6.3V

RZ3

4.64k, 1%

CZ3

220pF

C1

22µF

16V

C2

22µF

16V

GND

VIN

2.5V -20V

C1, C2

Ceramic

1210

X5R

R5

Bead

QB

= 5V @ 30mA

0.8V

Số phần tương tự - SP6137

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Exar Corporation	SP6137	733Kb / 15P	Wide Input, 900kHz Synchronous PWM Step Down Controller
	SP6137CU-L	733Kb / 15P	Wide Input, 900kHz Synchronous PWM Step Down Controller
	SP6137CU-L/TR	733Kb / 15P	Wide Input, 900kHz Synchronous PWM Step Down Controller
Sipex Corporation	SP6137EU	307Kb / 4P	Evaluation Board Manual
Exar Corporation	SP6137EU-L	733Kb / 15P	Wide Input, 900kHz Synchronous PWM Step Down Controller

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