SP6132CU/TR Datasheet

IC型號(hào)：
SP6132CU/TR
PDF描述：
Wide Input, 300KHz Synchronous PWM Controller
文件大小：
314.46KB
PDF頁數(shù)：
14頁
芯片廠家：
SIPEX

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SP6132

Wide Input, 300KHz Synchronous PWM Controller

FEATURES

鈻?/div>

3V to 12V Step Down Achieved Using Dual Input

2A to 15A Ouput Capability

Highly Integrated Design, Minimal Components

UVLO Detects Both V

and V

Short Circuit Protection with Auto-Restart

On-Board 1.5鈩?sink (2鈩?source) NFET Drivers

Wide BW Amp Allows Type II or III Compensation

Programmable Soft Start

Fast Transient Response

High Efficiency: Greater than 95% Possible

A Synchronous Start-Up into a Pre-Charged Output

Small 10-Pin MSOP Package

GND

COMP

BST

SP6132

10 Pin MSOP

SWN

UVIN

Now Available in Lead Free Packaging

DESCRIPTION

The SP6132 is wide input, synchronous step-down switching 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 V

voltage minimizes power dissipation in the part. The SP6132 is designed to drive a pair of external NFETs using a fixed

300kHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown and output

short circuit protection. The SP6132 is available in the cost and space saving 10-pin MSOP

TYPICAL APPLICATION CIRCUIT

VIN

12V

22碌F

16V

22碌F

16V

GND

C1, C2

Ceramic

1210

X5R

8 7 6 5

1 2 3

FDS7088N3

21A, 5m鈩?/div>

DBST

MBR0530

VCC

BST 10

SP6132

GH 9

GND

VFB

COMP

SWN 8

SS 7

UVIN 6

221k, 1%

100k, 1%

VCC

10碌F

6.3V

VCC

Ceramic

0805

X5R

0.1碌F

GND 3

CBST

1碌F

10V

5.11, 1%

8 7 6 5

L1 SC5018-2R7M

2.7碌H @ 12A

DCR=4.30m鈩?/div>

RZ3

4.64k, 1%

47碌F

6.3V

47碌F

6.3V

CZ3

220pF

OUT

3.3V

0 - 10 A

68.1k, 1%

1 2 3

FDS7088N3

21A, 5m

鈩?/div>

CZ2

RZ2

CSS

47nF

GND2

C3, C4

Ceramic

1210

X5R

21.5k, 1%

1500pF 27.4k, 1%

CP1

CF1

100pF

22pF

fs=300Khz

ALL RESISTORS AND CAPS ARE 0603 UNLESS OTHERWISE SPECIFIED

Q1, Q2 BOTTOM SIDE DRAIN CONTACT

Date: 8/4/04

SP6132 Wide Input, 300KHz Synchronous PWM Controller

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