Datasheet > NX2307

NX2307

更新时间： 2024-11-02 05:53:43

品牌	Logo	应用领域
美高森美 - MICROSEMI		控制器
页数	文件大小	规格书
22页	791K
描述
SINGLE SUPPLY 12V SYNCHRONOUS PWM CONTROLLER

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中文翻译

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数据手册

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NX2307 数据手册

NX2307

SINGLE SUPPLY 12V SYNCHRONOUS PWM CONTROLLER

ADVANCE DATA SHEET

Pb Free Product

FEATURES

DESCRIPTION

n 12V Gate Driver

The NX2307 controller IC is a compact synchronous Buck

controller IC with 8 lead SOIC8 package designed for

step down DC to DC converter applications. The NX2307

controller is optimized to convert single supply 12V bus

voltage to as low as 0.8V output voltage. Internal UVLO

keeps the regulator off until the supply voltage exceeds

7V where internal digital soft starts get initiated to ramp

up output. The NX2307 employs fixed current limiting

followed by HICCUP feature. Other features includes:

12V gate drive capability , Converter Shutdown by pull-

ing COMP pin to Gnd, Adaptive dead band control.

Bus voltage operation from 7V to 15V

Fixed hiccup current limit by sensing Rdson of

Synchronous MOSFET

n Internal 300kHz

n Internal Digital Soft Start Function

n Adaptive deadband Control

n Shut Down via pulling COMP pin

n Pb-free and RoHS compliant

APPLICATIONS

Graphic Card on board converters

Vddq Supply in mother board applications

On board DC to DC such as

12V to 3.3V, 2.5V or 1.8V

Set Top Box and LCD Display

TYPICAL APPLICATION

L2 1uH

Vin

+12V

100uF

1uF

Cin

16SVP180M

16V,180uF

D1 MBR0530T1

1uF

0.1uF

BST

Vcc

IRFR3706

Hdrv

COMP

L1 1.5uH

HI=SD

Vout

5.36k

+1.8V 10A

200pF

4SEPC560M

560uF,7mohm

1.43k

Ldrv

6.8nF

IRFR3706

10k

2.7nF

Gnd

Figure1 - Typical application of NX2307

ORDERING INFORMATION

Device

NX2307CSTR

Temperature

0 to 70^oC

Package

SOIC - 8L

Frequency

300kHz

Pb-Free

Yes

Rev. 3.2

06/22/06

12 3 4 5 6 7...22

中文翻译

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