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NX2138CMTR PDF预览

NX2138CMTR

更新时间: 2024-11-02 06:00:43
品牌 Logo 应用领域
美高森美 - MICROSEMI 控制器
页数 文件大小 规格书
16页 601K
描述
SINGLE CHANNEL MOBILE PWM CONTROLLER

NX2138CMTR 数据手册

 浏览型号NX2138CMTR的Datasheet PDF文件第2页浏览型号NX2138CMTR的Datasheet PDF文件第3页浏览型号NX2138CMTR的Datasheet PDF文件第4页浏览型号NX2138CMTR的Datasheet PDF文件第5页浏览型号NX2138CMTR的Datasheet PDF文件第6页浏览型号NX2138CMTR的Datasheet PDF文件第7页 
NX2138  
SINGLE CHANNEL MOBILE PWM CONTROLLER  
PRODUCTION DATA SHEET  
Pb Free Product  
FEATURES  
DESCRIPTION  
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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 compAlianPt PLICATIONS  
Notebook PCs and Desknotes  
Tablet PCs/Slates  
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On board DC to DC such as  
12V to 3.3V, 2.5V or 1.8V  
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Hand-held portable instruments  
TYPICAL APPLICATION  
4
1MEG  
16  
PGOOD  
PGOOD  
TON  
VIN 7V~22V  
1n  
100k  
2x10uF  
9
2
5V  
PVCC  
VCC  
12  
HDRV  
IRF7807  
10  
2.2  
13  
BST  
1u  
1u  
1u  
Vout 1.8V/7A  
1.5uH  
11  
SW  
2R5TPE330MC  
330uF  
8
AO4714  
LDRV  
ENSW  
/MODE  
15  
5k  
10  
1
OCSET  
VOUT  
2
NC  
NC  
10.5k  
7.5k  
14  
3
FB  
PGND  
AGND  
6
7
Figure1 - Typical application of NX2138  
ORDERING INFORMATION  
Device  
Temperature  
Package  
4X4 MLPQ-16L  
Pb-Free  
Yes  
NX2138CMTR -10o C to 100o C  
Rev. 1.6  
12/09/09  
1

NX2138CMTR 替代型号

型号 品牌 替代类型 描述 数据表
NX2147CMTR MICROSEMI

完全替代

SINGLE CHANNEL MOBILE PWM CONTROLLER WITH DYNAMIC VOLTAGE ADJUSTMENT

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