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L4957AV1.8 PDF预览

L4957AV1.8

更新时间: 2024-11-13 22:16:51
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 线性稳压器IC调节器电源电路输出元件局域网
页数 文件大小 规格书
7页 66K
描述
UP TO 5A ULDO LINEAR REGULATOR

L4957AV1.8 技术参数

是否Rohs认证:符合生命周期:Obsolete
零件包装代码:SFM包装说明:TO-220, SIP3,.1TB
针数:3Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.68Is Samacsys:N
可调性:FIXED最大回动电压 1:0.6 V
最大绝对输入电压:16 V最大输入电压:14 V
最小输入电压:3 VJESD-30 代码:R-PSFM-T3
JESD-609代码:e0功能数量:1
输出次数:1端子数量:3
工作温度TJ-Max:150 °C工作温度TJ-Min:-40 °C
最大输出电流 1:5 A最大输出电压 1:1.836 V
最小输出电压 1:1.764 V标称输出电压 1:1.8 V
封装主体材料:PLASTIC/EPOXY封装代码:TO-220
封装等效代码:SIP3,.1TB封装形状:RECTANGULAR
封装形式:FLANGE MOUNT峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified调节器类型:FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
子类别:Other Regulators表面贴装:NO
技术:BCD端子面层:TIN LEAD
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:SINGLE处于峰值回流温度下的最长时间:NOT SPECIFIED
最大电压容差:2%Base Number Matches:1

L4957AV1.8 数据手册

 浏览型号L4957AV1.8的Datasheet PDF文件第2页浏览型号L4957AV1.8的Datasheet PDF文件第3页浏览型号L4957AV1.8的Datasheet PDF文件第4页浏览型号L4957AV1.8的Datasheet PDF文件第5页浏览型号L4957AV1.8的Datasheet PDF文件第6页浏览型号L4957AV1.8的Datasheet PDF文件第7页 
L4957A  
UP TO 5A ULDO LINEAR REGULATOR  
PRODUCT PREVIEW  
1.5V, 1.8V, 2.5V AND 3.3V FIXED OUTPUT  
VOLTAGE  
MULTIPOWER BCD TECHNOLOGY  
3V TO 14V INPUT VOLTAGE RANGE  
200mRdson TYPICAL @ Tj = 125°C  
0.6V max. DROP-OUT AT 2A  
EXCELLENT LOAD REGULATION  
0.6mAQUIESCENTCURRENT AT ANYLOAD  
SHORT CIRCUIT PROTECTION  
THERMAL SHUTDOWN  
3
1
Versawatt TO-220  
D2PAK  
ORDERING NUMBERS:  
APPLICATIONS  
L4957AV1.5  
L4957AV1.8  
L4957AV2.5  
L4957AV3.3  
L4957AD1.5  
L4957AD1.8  
L4957AD2.5  
L4957AD3.3  
MOTHER BOARDS  
PROCESSOR I/O & SUPPLIES  
LOW VOLTAGE MEMORY & CHIP SET SUP-  
PLIES  
GRAPHIC & SOUND CARDS  
LOW VOLTAGE LOGIC SUPPLIES  
POST REGULATOR FOR SMPS  
plies required by processor, for example they are  
the cost effective and efficient solution for conver-  
sion from 3.3V (rail bus) to 2.5V @ 2.5A or to  
1.5V with high current rating.  
Fast response transient minimise the output ca-  
pacitor value. A minimum of 22µF assures the  
stability in all load conditions.  
DESCRIPTION  
The L4957A devices are Ultra Low Drop Output  
linear regulators with an internal N-channel MOS  
of 200mparticulary suitable for low voltage/low  
dropout applications.  
The on-chip trimming technique offers a tighter  
voltage reference tolerance (with ± 2% including  
line and load variation) beside to ensure a con-  
trolled short circuit current. Thermal shutdown  
provides protection against overload conditions  
that creates excessive junction temperature.  
Operating with a input voltage from 3V to 14V  
they are capable to deliver up to 5A.  
The devices are ideal for use as one of the sup-  
TYPICAL APPLICATION  
VOUT  
3V to 14V  
C1  
IN  
OUT  
1
3
L4957A  
C2  
2
GND  
D00IN1107A  
1/7  
May 2000  
This is preliminary information on a new product now in development. Details are subject to change without notice.  

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