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LT3083IT

更新时间： 2024-11-13 11:42:35
品牌 Logo 应用领域
凌特 - Linear 稳压器调节器电阻器输出元件局域网
页数 文件大小 规格书
28页 256K
描述
Adjustable 3A Single Resistor Low Dropout Regulator

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中文翻译

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LT3083IT 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Transferred零件包装代码：SFM
包装说明：ZIP, ZIP5,.15,.17,67TB针数：3
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.16
可调性：ADJUSTABLE最大回动电压 1：0.51 V
标称回动电压 1：0.31 VJESD-30 代码：R-PZFM-T5
JESD-609代码：e0功能数量：1
输出次数：1端子数量：5
工作温度TJ-Max：125 °C工作温度TJ-Min：-40 °C
最大输出电流 1：3 A最大输出电压 1：23 V
最小输出电压 1：封装主体材料：PLASTIC/EPOXY
封装代码：ZIP封装等效代码：ZIP5,.15,.17,67TB
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：ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR子类别：Other Regulators
表面贴装：NO技术：BIPOLAR
端子面层：Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier端子形式：THROUGH-HOLE
端子节距：1.7 mm端子位置：ZIG-ZAG
处于峰值回流温度下的最长时间：NOT SPECIFIEDBase Number Matches：1

LT3083IT 数据手册

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LT3083  
Adjustable 3A  
Single Resistor Low  
Dropout Regulator  
FEATURES  
DESCRIPTION  
n
Outputs May be Paralleled for Higher Current and  
The LT®3083 is a 3A low dropout linear regulator that can  
be paralleled to increase output current or spread heat on  
surfacemountedboards.Architectedasaprecisioncurrent  
source and voltage follower, this new regulator finds use  
in many applications requiring high current, adjustability  
to zero, and no heat sink. The device also brings out the  
collectorofthepasstransistortoallowlowdropoutopera-  
tion—downto310mV—whenusedwithmultiplesupplies.  
Heat Spreading  
n
Output Current: 3A  
n
Single Resistor Programs Output Voltage  
50μA Set Pin Current: 1% Initial Accuracy  
Output Adjustable to 0V  
Low Output Noise: 40μV  
n
n
n
(10Hz to 100kHz)  
RMS  
n
Wide Input Voltage Range: 1.2V to 23V  
(DD-Pak and TO-220 Packages)  
Low Dropout Voltage: 310mV  
A key feature of the LT3083 is the capability to supply a  
wide output voltage range. By using a reference current  
throughasingleresistor,theoutputvoltageisprogrammed  
to any level between zero and 23V (DD-PAK and TO-220  
packages). The LT3083 is stable with 10μF of capacitance  
on the output, and the IC is stable with small ceramic ca-  
pacitors that do not require additional ESR as is common  
with other regulators.  
n
n
n
n
n
n
<1mV Load Regulation  
<0.001%/V Line Regulation  
Minimum Load Current: 1mA  
Stable with Minimum 10μF Ceramic Capacitor  
Current Limit with Foldback and Overtemperature  
Protection  
n
Available in 16-Lead TSSOP, 12-Lead 4mm × 4mm  
DFN, 5-Lead TO-220 and 5-Lead Surface Mount  
DD-PAK Packages  
Internal protection circuitry includes current limiting and  
thermal limiting. The LT3083 is offered in the 16-lead  
TSSOP (with an exposed pad for better thermal character-  
istics), 12-lead 4mm × 4mm DFN (also with an exposed  
pad), 5-lead TO-220, and 5-lead surface mount DD-PAK  
packages.  
APPLICATIONS  
n
High Current All Surface Mount Supply  
n
High Efficiency Linear Regulator  
n
Post Regulator for Switching Supplies  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
n
Low Parts Count Variable Voltage Supply  
n
Low Output Voltage Power Supplies  
TYPICAL APPLICATION  
Set Pin Current Distribution  
1.5V to 0.9V at 3A Supply (Using 3.3V VCONTROL  
)
N = 1052  
V
CONTROL  
3.3V  
4.7μF  
10μF  
V
CONTROL  
V
= 0.9V  
= 3A  
LT3083  
V
OUT  
MAX  
IN  
IN  
OUT  
I
1.5V  
*
10μF  
SET  
R
MIN  
909Ω  
3083 TA01a  
*OPTIONAL FOR  
MINIMUM 1mA LOAD  
REQUIREMENT  
R
18.2k  
1%  
SET  
0.1μF  
49  
49.5  
50  
50.5  
51  
SET PIN CURRENT DISTRIBUTION (μA)  
3083 TA01b  
3083f  
1
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中文翻译

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