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LT3080ET-PBF PDF预览

LT3080ET-PBF

更新时间： 2024-02-05 01:08:04
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
26页 283K
描述
Adjustable1.1A Single Resistor Low Dropout Regulator

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中文翻译

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LT3080ET-PBF 技术参数

Source Content uid：LT3080IT#TR是否Rohs认证： 不符合
生命周期：Transferred零件包装代码：SFM
包装说明：,针数：3
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.73
最大回动电压 1：0.5 VJESD-30 代码：R-PZFM-T5
JESD-609代码：e0功能数量：1
端子数量：5工作温度TJ-Max：125 °C
工作温度TJ-Min：-40 °C最大输出电压 1：36 V
最小输出电压 1：封装主体材料：PLASTIC/EPOXY
封装形状：RECTANGULAR封装形式：FLANGE MOUNT
认证状态：Not Qualified调节器类型：ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
表面贴装：NO端子面层：Tin/Lead (Sn/Pb)
端子形式：THROUGH-HOLE端子位置：ZIG-ZAG
Base Number Matches：1

LT3080ET-PBF 数据手册

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LT3080  
Adjustable1.1A Single  
Resistor Low Dropout  
Regulator  
FEATURES  
DESCRIPTION  
TheLT®3080isa1.1Alowdropoutlinearregulatorthatcan  
be paralleled to increase output current or spread heat in  
surface mounted boards. Architected as a precision cur-  
rent source and voltage follower allows this new regulator  
to be used in many applications requiring high current,  
adjustability to zero, and no heat sink. Also the device  
brings out the collector of the pass transistor to allow low  
dropout operation —down to 350 millivolts— when used  
with multiple supplies.  
n
Outputs May be Paralleled for Higher Current and  
Heat Spreading  
n
Output Current: 1.1A  
n
Single Resistor Programs Output Voltage  
1% Initial Accuracy of SET Pin Current  
Output Adjustable to 0V  
Low Output Noise: 40μV  
n
n
n
(10Hz to 100kHz)  
RMS  
n
n
Wide Input Voltage Range: 1.2V to 36V  
Low Dropout Voltage: 350mV (Except SOT-223  
Package)  
A key feature of the LT3080 is the capability to supply a  
wide output voltage range. By using a reference current  
throughasingleresistor,theoutputvoltageisprogrammed  
to any level between zero and 36V. The LT3080 is stable  
with 2.2μF of capacitance on the output, and the IC uses  
small ceramic capacitors that do not require additional  
ESR as is common with other regulators.  
n
n
n
n
n
<1mV Load Regulation  
<0.001%/V Line Regulation  
Minimum Load Current: 0.5mA  
Stable with 2.2μF Minimum Ceramic Output Capacitor  
Current Limit with Foldback and Overtemperature  
Protected  
n
Available in 8-Lead MSOP, 3mm × 3mm DFN,  
5-Lead DD-Pak, TO-220 and 3-Lead SOT-223  
Internal protection circuitry includes current limiting and  
thermal limiting. The LT3080 regulator is offered in the  
8-lead MSOP (with an exposed pad for better thermal  
characteristics), a 3mm × 3mm DFN, 5-lead DD-Pak,  
TO-220 and a simple-to-use 3-lead SOT-223 version.  
APPLICATIONS  
n
High Current All Surface Mount Supply  
n
High Efficiency Linear Regulator  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and VLDO  
and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks are the  
property of their respective owners.  
n
Post Regulator for Switching Supplies  
n
Low Parts Count Variable Voltage Supply  
n
Low Output Voltage Power Supplies  
Set Pin Current Distribution  
TYPICAL APPLICATION  
Variable Output Voltage 1.1A Supply  
N = 13792  
IN  
LT3080  
V
IN  
1.2V TO 36V  
V
CONTROL  
+
–
1μF  
OUT  
V
OUT  
SET  
2.2μF  
R
V
SET  
= R  
• 10μA  
SET  
OUT  
10.00  
SET PIN CURRENT DISTRIBUTION (μA)  
9.80  
9.90  
10.10  
10.20  
3080 TA01a  
3080 G02  
3080fb  
1
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