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LTC3637HDHC#PBF

更新时间： 2024-11-19 15:38:11
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管输出元件
页数 文件大小 规格书
26页 396K
描述
LTC3637 - 76V, 1A Step-Down Regulator; Package: DFN; Pins: 16; Temperature Range: -40°C to 125°C

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中文翻译

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LTC3637HDHC#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：DFN包装说明：HVSON,
针数：16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：8.45其他特性：ALSO HAS 3.3V, 5V FIXED OUTPUTS AND ADJUSTABLE OUTPUT FROM 0.8V TO 76V
模拟集成电路 - 其他类型：SWITCHING REGULATOR最大输入电压：76 V
最小输入电压：4 V标称输入电压：12 V
JESD-30 代码：R-PDSO-N16JESD-609代码：e3
长度：5 mm功能数量：1
端子数量：16标称输出电压：1.8 V
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：NOT SPECIFIED座面最大高度：0.8 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：250 kHz技术：CMOS
端子面层：Matte Tin (Sn)端子形式：NO LEAD
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

LTC3637HDHC#PBF 数据手册

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LTC3637  
76V, 1A Step-Down  
Regulator  
FEATURES  
DESCRIPTION  
The LTC®3637 is a high efficiency step-down DC/DC  
regulator with an internal high side power switch that  
draws only 12μA DC supply current while maintaining a  
regulated output voltage at no load.  
n
Wide Operating Input Voltage Range: 4V to 76V  
n
Internal 350mΩ Power MOSFET  
n
No Compensation Required  
Adjustable 100mA to 1A Maximum Output Current  
Low Dropout Operation: 100% Duty Cycle  
Low Quiescent Current: 12µA  
Wide Output Range: 0.8V to V  
n
n
TheLTC3637cansupplyupto1Aloadcurrentandfeatures  
a programmable peak current limit that provides a simple  
method for optimizing efficiency and for reducing output  
ripple and component size. The LTC3637’s combination  
of Burst Mode® operation, integrated power switch, low  
quiescent current, and programmable peak current limit  
provideshighefficiencyoverabroadrangeofloadcurrents.  
n
n
IN  
n
n
n
n
n
n
n
0.8V 1% Feedback Voltage Reference  
Precise RUN Pin Threshold  
Internal and External Soft-Start  
Programmable 1.8V, 3.3V, 5V or Adjustable Output  
Few External Components Required  
Programmable Input Overvoltage Lockout  
Low Profile (0.75mm) 3mm × 5mm DFN and  
Thermally-Enhanced MSE16 Packages  
With its wide input range of 4V to 76V, and programmable  
overvoltage lockout, the LTC3637 is a robust regulator  
suitedforregulatingfromawidevarietyofpowersources.  
Additionally, theLTC3637 includesaprecise runthreshold  
and soft-start feature to guarantee that the power system  
start-up is well-controlled in any environment.  
APPLICATIONS  
n
Industrial Control Supplies  
The LTC3637 is available in the thermally-enhanced  
3mm × 5mm DFN and the MSE16 packages.  
L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks  
of Linear Technology Corporation. All other trademarks are the property of their respective  
owners.  
n
Medical Devices  
n
Distributed Power Systems  
n
Portable Instruments  
n
Battery-Operated Devices  
n
Automotive  
Avionics  
n
TYPICAL APPLICATION  
Efficiency and Power Loss vs Load Current  
100  
12.5V to 76V Input to 12V Output, 1A Regulator  
V
= 12V  
OUT  
EFFICIENCY  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
10µH  
V
12V  
1A  
OUT  
V
IN  
V
SW  
LTC3637  
IN  
12.5V TO 76V  
47µF  
2.2µF  
200k  
1000  
100  
10  
RUN  
V
FB  
SS  
PRG1  
PRG2  
35.7k  
POWER LOSS  
FBO  
V
V
OVLO  
I
SET  
V
V
V
= 24V  
= 48V  
= 76V  
IN  
IN  
IN  
GND  
3637 TA01a  
0
0.1  
1.0  
10  
100  
1000  
LOAD CURRENT (mA)  
3637 TA01b  
3637fa  
1
For more information www.linear.com/LTC3637  
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中文翻译

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