SP6136ER1/TR Datasheet

IC型號：
SP6136ER1/TR
PDF描述：
Synchronous Buck Controller
文件大小：
826.90KB
PDF頁數(shù)：
18頁
芯片廠家：
SIPEX

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SP6136

Synchronous Buck Controller

FEATURES

鈻?/div>

5V to 24V Input step down converter

鈻?/div>

Up to 7A output in a small form factor

鈻?/div>

Highly integrated design, minimal components

鈻?/div>

UVLO Detects Both V

and V

PGND

鈻?/div>

Overcurrent circuit protection with auto-restart

鈻?/div>

Power Good Output, ENABLE Input

鈻?/div>

Maximum Controllable Duty Cycle Ratio up to 92%

GND

鈻?/div>

Wide BW amp allows Type II or III compensation

鈻?/div>

Programmable Soft Start

鈻?/div>

Fast Transient Response

鈻?/div>

Available in Lead Free, RoHS Compliant

6-Pin QFN package

鈻?/div>

External Driver Enable/Disable

鈻?/div>

U.S. Patent #6,922,04

BST

12 GH

SP6136

16 Pin QFN

3mm x 3mm

I N

SWN

ISP

ISN

COM P

PWRGD

VIN

CIN

22uF

DESCRIPTION

The SP636 is a synchronous step-down switching regulator controller optimized for high

efficiency. The part is designed to be especially attractive for single supply step down con-

version from 5V to 24V. The SP636 is designed to drive a pair of external NFETs using

a fixed 600 KHz frequency, PWM voltage mode architecture. Protection features include

UVLO, thermal shutdown, output short circuit protection, and overcurrent protection with

auto restart. The device also features a PWRGD output and an enable input. The SP636

is available in a space saving 6-pin QFN and offers excellent thermal performance.

TYPICAL APPLICATION CIRCUIT

0.1uF

DBST

CVCC

4.7uF

SD101AWS

VIN

VCC

POWERGOOD

ENABLE

10k鈩?/div>

PWRGD

SWN

UVIN

MB, Si4886DY

13.5 m鈩? 30V

RS3

10K鈩?/div>

ISP

PGND

ISN

COMP

VFB

CP1

12 pF

CZ3

270pF

CF1

22pF

CZ2

560pF

RZ2

30.9k鈩?/div>

CSS

47nF

RZ3

1k鈩?/div>

21.5k鈩? 1%

CSP

6.8nF

0.1uF

68.1k鈩? 1%

BST

Inter-Technical SC7232-2R2

2.2uH, 13A, 10.4m鈩?/div>

CBST

0.1uF

MT, Si4354DY

18.5 m鈩? 30V

12V

GND

VOUT

COUT

100uF

SP6136

RS1

5.11K鈩?/div>

RS2

5.11K鈩?/div>

GND

3.3V

0-7A

GND

Note: Die attach paddle is internally connected to GND.

Oct 3-06 Rev L

SP636 Synchronous Buck Controller

漏 2006 Sipex Corporation

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