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LM317MDTX PDF预览

LM317MDTX

更新时间: 2024-01-26 23:32:22
品牌 Logo 应用领域
德州仪器 - TI 输出元件调节器
页数 文件大小 规格书
26页 792K
描述
1.2 V-37V ADJUSTABLE POSITIVE REGULATOR, PSSO2, TO-252, DPAK-3

LM317MDTX 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete包装说明:TO-252, SMSIP3H,.38,90TB
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:7.01可调性:ADJUSTABLE
标称回动电压 1:3 V最大差分输入-输出电压:40 V
最小差分输入-输出电压:3 VJESD-30 代码:R-PSSO-G2
JESD-609代码:e3长度:6.6 mm
最大电网调整率 (%/V):0.07最大负载调整率 (%):1.5%
湿度敏感等级:1功能数量:1
输出次数:1端子数量:2
工作温度TJ-Max:125 °C工作温度TJ-Min:
最大输出电流 1:0.5 A最大输出电压 1:37 V
最小输出电压 1:1.2 V封装主体材料:PLASTIC/EPOXY
封装代码:TO-252封装等效代码:SMSIP3H,.38,90TB
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
包装方法:TAPE AND REEL峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified调节器类型:ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR
座面最大高度:2.5 mm子类别:Other Regulators
表面贴装:YES技术:BIPOLAR
端子面层:Tin (Sn)端子形式:GULL WING
端子节距:2.3 mm端子位置:SINGLE
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:6.1 mm
Base Number Matches:1

LM317MDTX 数据手册

 浏览型号LM317MDTX的Datasheet PDF文件第4页浏览型号LM317MDTX的Datasheet PDF文件第5页浏览型号LM317MDTX的Datasheet PDF文件第6页浏览型号LM317MDTX的Datasheet PDF文件第8页浏览型号LM317MDTX的Datasheet PDF文件第9页浏览型号LM317MDTX的Datasheet PDF文件第10页 
LM317  
www.ti.com  
SLVS044V SEPTEMBER 1997REVISED FEBRUARY 2013  
APPLICATION INFORMATION  
D1 (Note E)  
1N4002  
Input  
Output  
V
I
V (Note C)  
O
LM317  
R
240  
1
Adjust  
D2 (Note E)  
1N4002  
V
ref  
= 1.25 V  
I
Adj  
C (Note A)  
i
C (Note B)  
O
0.1 µF  
1.0 µF  
C
ADJ  
(Note D)  
R
2
NOTES: A. C is not required, but is recommended, particularly if the regulator is not in close proximity to the power-supply filter  
i
capacitors. A 0.1-µF disc or 1-µF tantalum provides sufficient bypassing for most applications, especially when adjustment  
and output capacitors are used.  
B.  
C.  
C
improves transient response, but is not needed for stability.  
is calculated as shown:  
O
O
V
R2  
R1  
ǒ1 ) Ǔ  
VO + Vref  
) (IAdj   R2)  
Because I typically is 50 µA, it is negligible in most applications.  
Adj  
D.  
C
C
is used to improve ripple rejection; it prevents amplification of the ripple as the output voltage is adjusted higher. If  
is used, it is best to include protection diodes.  
ADJ  
ADJ  
E. If the input is shorted to ground during a fault condition, protection diodes provide measures to prevent the possibility of  
external capacitors discharging through low-impedance paths in the IC. By providing low-impedance discharge paths for  
C
O
and C  
, respectively, D1 and D2 prevent the capacitors from discharging into the output of the regulator.  
ADJ  
Figure 1. Adjustable Voltage Regulator  
Copyright © 1997–2013, Texas Instruments Incorporated  
Submit Documentation Feedback  
7
Product Folder Links: LM317  

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