Datasheet > NX2141CUTR

NX2141CUTR

更新时间： 2024-11-20 06:00:35

品牌	Logo	应用领域
美高森美 - MICROSEMI		控制器手机
页数	文件大小	规格书
21页	915K
描述
SINGLE CHANNEL MOBILE PWM CONTROLLER WITH FEEDFORWARD AND ENABLE

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中文翻译

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数据手册

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NX2141CUTR 数据手册

NX2141

SINGLE CHANNEL MOBILE PWM CONTROLLER WITH

FEEDFORWARD AND ENABLE

ADVANCE DATA SHEET

Pb Free Product

FEATURES

DESCRIPTION

The NX2141 controller IC is a compact synchronous Buck n Bus voltage operation from 7V to 24V

controller IC designed for step down DC to DC con- n Less than 1uA shutdown current with Enable low

verter applications with voltage feedforward functionality. n Excellent dynamic response with input voltage feed-

Voltage feedforward provides fast response, good line

forward and voltage mode control

regulation and nearly constant power stage gain under n Internal Digital Soft Start Function

wide voltage input range. The NX2141 controller is opti- n Fixed internal hiccup current limit

mized to convert single supply up to 24V bus voltage to n FB UVLO followed by hiccup feature

as low as 0.8V output voltage. Internal UVLO keeps the n Power Good indicator available

regulator off until the supply voltage exceeds 7V where n Start into precharged output

internal digital soft starts get initiated to ramp up output. n Pb-free and RoHS compliant

The NX2141 employs fixed current limiting and FB UVLO

APPLICATIONS

followed by hiccup feature. Other features includes: 5V

gate drive capability , Adaptive dead band control, avail-

able in 16 lead MLPQ and 10 lead MSOP package.

Notebook PC

Graphic Card on board converters

On board DC to DC such as

12V to 3.3V, 2.5V or 1.8V

Set Top Box and LCD Display

TYPICAL APPLICATION

1uH

Vin1

+8 to 20V

100uF

1uF

25TQC33M

25V,33uF

MBR0530T1

1uF

0.1uF

VIN BST

PVCC

VCC

Vin2

+5V

Hdrv

1uF

10k

1uH

Vout

PGOOD

+1.05V 10A

OFF

2*2R5TPE220MC

(220uF,12mohm)

COMP

Ldrv

1.5k

2.3k

10k

1nF

15nF

2.2nF

Gnd

Pgnd

32k

Figure1 - Typical application of NX2141(MLPQ)

ORDERING INFORMATION

Device

NX2141CMTR

NX2141CUTR

Temperature

-40^oC to 85^oC

Package

MLPQ-16L

MSOP-10L

Frequency

200kHz

Pb-Free

Yes

Rev. 1.6

05/15/07

12 3 4 5 6 7...21

中文翻译

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