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LTC3255EMSE#PBF

更新时间： 2024-11-05 21:19:51
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
16页 253K
描述
LTC3255 - Wide VIN Range Fault Protected 50mA Step-Down Charge Pump; Package: MSOP; Pins: 10; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3255EMSE#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：MSOP包装说明：HTSSOP,
针数：10Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：3.8Samacsys Description：LINEAR TECHNOLOGY - LTC3255EMSE#PBF - IC, STEP DWN CHARGE PUMP, 500KHZ, MSOP10
其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 2.4V TO 12.5V模拟集成电路 - 其他类型：SWITCHED CAPACITOR REGULATOR
最大输入电压：48 V最小输入电压：4 V
标称输入电压：12 VJESD-30 代码：S-PDSO-G10
JESD-609代码：e3长度：3 mm
湿度敏感等级：1功能数量：1
端子数量：10最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：0.05 A
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED座面最大高度：1.1 mm
表面贴装：YES切换器配置：BUCK
技术：CMOS温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

LTC3255EMSE#PBF 数据手册

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LTC3255  
Wide V Range  
IN  
Fault Protected 50mA  
Step-Down Charge Pump  
FEATURES  
DESCRIPTION  
The LTC®3255 is a switched-capacitor step-down DC/DC  
converter that produces a regulated output (2.4V to 12.5V  
adjustable) from a 4V to 48V input. In applications where  
the input voltage exceeds twice the output voltage, 2:1  
capacitivechargepumpingextendsoutputcurrentcapabil-  
ity beyond input supply current limits. At no load, Burst  
n
Input Voltage Range: 4V to 48V  
n
Adjustable Regulated Output: 2.4V to 12.5V  
n
Output Current: 50mA Maximum  
n
16μA Quiescent Current in Regulation at No Load  
n
Input Fault Protection from –52V to 60V  
n
Multimode Charge Pump (2:1, 1:1) with Automatic  
Mode Switching Maintains Regulation Over Wide  
Mode® operation cuts V quiescent current to 16µA.  
IN  
V Range  
IN  
With its integrated V shunt regulator, the LTC3255  
IN  
n
n
n
n
n
Input Voltage Shunt Mode for Current-Fed Applications  
excels in 4mA to 20mA current loop applications. The  
device enables current multiplication; a 4mA input current  
can power a 7.4mA load continuously. Alternatively, the  
LTC3255 serves as a higher efficiency replacement for  
linear regulators and provides a space-saving inductor-  
free alternative to buck DC/DC converters.  
Power Good Output  
Overtemperature and Short-Circuit Protection  
Operating Junction Temperature: 150°C Maximum  
Thermally Enhanced 10-Lead MSOP and 10-Lead  
(3mm × 3mm) DFN packages  
APPLICATIONS  
The LTC3255 withstands reverse-polarity input supplies  
and output short-circuits without damage. Safety features  
including current limit and overtemperature protection  
further enhance robustness. The LTC3255 is available in  
thermally enhanced 10-lead MSOP and low profile 3mm  
× 3mm 10-lead DFN packages.  
n
Industrial Control, Factory Automation, Sensors, and  
SCADA Systems  
n
Housekeeping Power Supplies  
n
Current-Boosting Voltage Regulators for 4mA to  
20mA Current Loops  
L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks  
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners.  
TYPICAL APPLICATION  
Available Output Current  
vs Input Current  
7.4mA DC Supply from 4mA to 20mA Current Loop  
40  
37  
34  
1µF  
OUTPUT  
+
–
31  
C
C
+
3.3V  
V
V
OUT  
IN  
28  
7.4mA  
AVAILABLE  
EN  
LTC3255  
220k  
PGOOD  
25  
22  
19  
16  
13  
10  
7
INCREASED  
CAPABILITY  
I
OUT  
I
OUT  
PGOOD  
FB  
4mA TO 20mA INPUT  
>10V COMPLIANCE  
1µF  
10µF  
SHUNT  
BIAS  
2.15M  
1.21M  
GND  
INPUT  
CURRENT  
0.1µF  
3255 TA01a  
–
4
4
6
8
10 12 14 16 18 20  
INPUT CURRENT (mA)  
3255 TA01b  
3255f  
1
For more information www.linear.com/LTC3255  
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中文翻译

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LTC3255EMSE#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3255HMSE#PBF Linear

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