NX2114A

更新时间： 2024-11-17 06:00:39

品牌	Logo	应用领域
美高森美 - MICROSEMI		控制器
页数	文件大小	规格书
20页	810K
描述
300kHz & 600kHz SYNCHRONOUS PWM CONTROLLER

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中文翻译

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数据手册

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NX2114A 数据手册

Evaluation board available.

NX2114/2114A

300kHz & 600kHz SYNCHRONOUS PWM CONTROLLER

PRELIMINARY DATA SHEET

Pb Free Product

FEATURES

DESCRIPTION

n Synchronous Controller in 8 Pin Package

The NX2114 controller IC is a synchronous Buck con-

troller IC designed for step down DC to DC converter

applications. Synchronous control operation replaces

the traditional catch diode with an Nch MOSFET result-

ing in improved converter efficiency.Although the NX2114

controller is optimized to convert single 5V bus voltages

to supplies as low as 0.8V output voltage, however us-

ing a few external components it can also be used for

other input supplies such as 12V input (See NX2113

data sheet for more optimized solution). The NX2114

operates at 300kHz while 2114A is set at 600kHz

operation which together with less than 50 nS of dead

band provides an efficient and cost effective solution.

Other features of the device are:

Bus voltage operation from 2V to 25V

Single 5V Supply Operation

Short protection with feedback UVLO

n Internal 300kHz for 2114 and 600kHz for 2114A

n Internal Digital Soft Start Function

n Shut Down via pulling comp pin low

n Pb-free and RoHS compliant

APPLICATIONS

Graphic Card on board converters

Memory Vddq Supply in mother board applications

On board DC to DC such as

5V to 3.3V, 2.5V or 1.8V

Internal digital soft start; Vcc undervoltage lock out; Out-

put undervoltage protection with digital filter and shut-

down capability via the enable pin.

Hard Disk Drive

Set Top Box

TYPICAL APPLICATION

L2 1uH

Vin

+5V

47uF,70mohm

D1 MBR0530T1

1uF

47uF,70mohm

1uF

Cin

220uF,12mohm

0.1uF

BST

Vcc

L1 1.5uH

Comp

Hdrv

OFF

10k

2N3904

1.5nF

Vout

47pF

+1.6V,6A

10k

22.1k

2 x (220uF,15mohm)

Ldrv

Gnd

10.2k

1.5k

2.2nF

Figure1 - Typical application of 2114

ORDERING INFORMATION

Device

NX2114CSTR

NX2114ACSTR

Temperature

0 to 70^oC

Package

SOIC-8L

Frequency

300kHz

600kHz

Pb-Free

Yes

0 to 70^oC

Rev. 4.0

06/20/06

12 3 4 5 6 7...20

中文翻译

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与NX2114A相关器件

型号	品牌	获取价格	描述	数据表
NX2114ACSTR	MICROSEMI	获取价格	300kHz & 600kHz SYNCHRONOUS PWM CONTROLLER
NX2114CSTR	MICROSEMI	获取价格	300kHz & 600kHz SYNCHRONOUS PWM CONTROLLER
NX2116	MICROSEMI	获取价格	SYNCHRONOUS PWM CONTROLLER WITH CURRENT LIMIT, POWER GOOD & OVER VOLTAGE
NX2116A	MICROSEMI	获取价格	SYNCHRONOUS PWM CONTROLLER WITH CURRENT LIMIT, POWER GOOD & OVER VOLTAGE
NX2116ACMTR	MICROSEMI	获取价格	SYNCHRONOUS PWM CONTROLLER WITH CURRENT LIMIT, POWER GOOD & OVER VOLTAGE
NX2116B	MICROSEMI	获取价格	SYNCHRONOUS PWM CONTROLLER WITH CURRENT LIMIT, POWER GOOD & OVER VOLTAGE
NX2116BCMTR	MICROSEMI	获取价格	SYNCHRONOUS PWM CONTROLLER WITH CURRENT LIMIT, POWER GOOD & OVER VOLTAGE
NX2116CMTR	MICROSEMI	获取价格	SYNCHRONOUS PWM CONTROLLER WITH CURRENT LIMIT, POWER GOOD & OVER VOLTAGE
NX2117	MICROSEMI	获取价格	SYNCHRONOUS PWM CONTROLLER WITH CURRENT LIMIT, POWER GOOD & OVER VOLTAGE
NX2117A	MICROSEMI	获取价格	SYNCHRONOUS PWM CONTROLLER WITH CURRENT LIMIT, POWER GOOD & OVER VOLTAGE

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