SP61346 datasheet(1/14 Pages) SIPEX

Nome de Peças	SP61346

Descrição Electrónicos	Dual Supply Synchronous Buck Controller

PDF	14 Pages

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Fabricante Electrônico	SIPEX [Sipex Corporation]

Página de início	http://www.sipex.com

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Date: 2/16/06

SP6134 Dual Supply, Synchronous Buck Controller

SP6134

FEATURES

■ 3V to 15V 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

■ Asynchronous Start-Up into a Pre-Charged Output

■ U.S. Patent #6,922,041

APPLICATIONS

■ 12V DPA

■ Communications Systems

■ Graphics Cards

Dual Supply Synchronous Buck Controller

DESCRIPTION

The SP6134 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 SP6134 is designed to drive a pair of external NFETs using a fixed

600kHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown and output

short circuit protection. The SP6134 is available in the cost and space saving 10-pin MSOP

.

®

TYPICAL APPLICATION CIRCUIT

VCC

GL

GND

VFB

COMP

SP6134

10 Pin MSOP

1

2

3

4

5

10

9

8

7

6

BST

GH

SWN

SS

UVIN

8 7 6 5

1 2 3

4

CSS

47nF

CBST

1µF

FDS6676S

14.5A, 6.0mΩ

C3

47µF

6.3V

R1

68.1k, 1%

VOUT≤VIN

0.8V - 3.3V

0 - 10 A

R2

21.5k, 1%

CVCC

10µF

6.3V

R3

221k, 1%

R4

100k, 1%

CF1

100pF

CZ2

820pF

CP1

56pF

fs=600Khz

RZ2

40.2k, 1%

FDS6676S

14.5A, 6mΩ

8 7 6 5

4

1 2 3

DBST

MBR0530

SP6134

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

3.5V - 15V

C1, C2

Ceramic

1210

X5R

V

OUT

=(R1/R2 +1)V

FB

R5

Bead

QB

= 5V @ 30mA

0.8V

Now Available in Lead Free Packaging

Nº de peça semelhante - SP61346

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Sipex Corporation	SP6134	141Kb / 14P	Dual Supply Synchronous Buck Controller
Exar Corporation	SP6134	776Kb / 15P	600kHz Synchronous PWM Step Down Controller
Sipex Corporation	SP6134CU	141Kb / 14P	Dual Supply Synchronous Buck Controller
Exar Corporation	SP6134CU-L	776Kb / 15P	600kHz Synchronous PWM Step Down Controller
Exar Corporation	SP6134CU-L/TR	776Kb / 15P	600kHz Synchronous PWM Step Down Controller

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Descrição semelhante - SP61346

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Sipex Corporation	SP6134	141Kb / 14P	Dual Supply Synchronous Buck Controller
	SP6134HV	141Kb / 14P	Dual Supply Synchronous Buck Controller
	SP6137HV	265Kb / 13P	Dual Supply Synchronous Buck Controller
ON Semiconductor	NCP5425	155Kb / 22P	Dual Synchronous Buck Controller January, 2005 ??Rev. 6
ON Semiconductor	NCP5425	173Kb / 22P	Dual Synchronous Buck Controller July, 2006 ??Rev. 9
Semtech Corporation	SC415	927Kb / 30P	Dual Synchronous Buck Controller
Semtech Corporation	SC415	763Kb / 30P	Dual Synchronous Buck Controller
ON Semiconductor	NCP5425SOEVB	178Kb / 22P	Dual Synchronous Buck Controller July, 2006 ??Rev. 9
	NCP5424A	134Kb / 20P	Dual Synchronous Buck Controller August, 2003 ??Rev. 0
	NCP5425	172Kb / 22P	Dual Synchronous Buck Controller July, 2006 ??Rev. 9

More results

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