NX2138

更新时间： 2024-11-17 06:00:35

品牌	Logo	应用领域
美高森美 - MICROSEMI		控制器
页数	文件大小	规格书
16页	601K
描述
SINGLE CHANNEL MOBILE PWM CONTROLLER

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

NX2138 数据手册

NX2138

SINGLE CHANNEL MOBILE PWM CONTROLLER

PRODUCTION DATA SHEET

Pb Free Product

FEATURES

DESCRIPTION

Internal boost schottky diode

The NX2138 controller IC is a compact Buck controller

IC with 16 lead MLPQ package designed for step down

DC to DC converter in portable applications. It can be

selected to operate in synchronous mode or non-syn-

chronous mode to improve the efficiency at light

load.Constant on time control provides fast response,

good line regulation and nearly constant frequency un-

der wide voltage input range. The NX2138 controller is

optimized to convert single supply up to 24V bus volt-

age to as low as 0.75V output voltage. Over current

protection and FB UVLO followed by latch feature. Other

features includes: internal boost schottky diode, 5V gate

drive capability, power good indicator, over current pro-

tection, over voltage protection and adaptive dead band

control.

Ultrasonic mode operation available

Bus voltage operation from 4.5V to 24V

Less than 1uA shutdown current with Enable low

Excellent dynamic response with constant on time

control

Selectable between synchronous CCM mode and

diode emulation mode to improve efficiency at

light load

Programmable switching frequency

Current limit and FB UVLO with latch off

Over voltage protection with latch off

Power good indicator available

^{Pb-free and RoHS comp}A^lianP^tPLICATIONS

Notebook PCs and Desknotes

Tablet PCs/Slates

On board DC to DC such as

12V to 3.3V, 2.5V or 1.8V

Hand-held portable instruments

TYPICAL APPLICATION

1MEG

PGOOD

TON

VIN 7V~22V

100k

2x10uF

PVCC

VCC

HDRV

IRF7807

2.2

BST

Vout 1.8V/7A

1.5uH

2R5TPE330MC

330uF

AO4714

LDRV

ENSW

/MODE

OCSET

VOUT

10.5k

7.5k

PGND

AGND

Figure1 - Typical application of NX2138

ORDERING INFORMATION

Device

Temperature

Package

4X4 MLPQ-16L

Pb-Free

Yes

NX2138CMTR -10^oC to 100^oC

Rev. 1.6

12/09/09

12 3 4 5 6 7...16

中文翻译

下载PDF

与NX2138相关器件

型号	品牌	获取价格	描述	数据表
NX2138CMTR	MICROSEMI	获取价格	SINGLE CHANNEL MOBILE PWM CONTROLLER
NX2139A	MICROSEMI	获取价格	SINGLE CHANNEL MOBILE PWM AND LDO CONTROLLER
NX2139ACMTR	MICROSEMI	获取价格	SINGLE CHANNEL MOBILE PWM AND LDO CONTROLLER
NX2141	MICROSEMI	获取价格	SINGLE CHANNEL MOBILE PWM CONTROLLER WITH FEEDFORWARD AND ENABLE
NX2141CMTR	MICROSEMI	获取价格	SINGLE CHANNEL MOBILE PWM CONTROLLER WITH FEEDFORWARD AND ENABLE
NX2141CUTR	MICROSEMI	获取价格	SINGLE CHANNEL MOBILE PWM CONTROLLER WITH FEEDFORWARD AND ENABLE
NX2142	MICROSEMI	获取价格	SINGLE CHANNEL PWM CONTROLLER WITH FEEDFORWARD AND 5V BIAS REGULATOR
NX2142A	MICROSEMI	获取价格	SINGLE CHANNEL PWM CONTROLLER WITH FEEDFORWARD AND 5V BIAS REGULATOR
NX2142ACUTR	MICROSEMI	获取价格	SINGLE CHANNEL PWM CONTROLLER WITH FEEDFORWARD AND 5V BIAS REGULATOR
NX2142CUTR	MICROSEMI	获取价格	SINGLE CHANNEL PWM CONTROLLER WITH FEEDFORWARD AND 5V BIAS REGULATOR