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LT3686EDDTRPBF PDF预览

LT3686EDDTRPBF

更新时间: 2024-02-23 11:07:36
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
28页 551K
描述
37V/1.2A Step-Down Regulator in 3mm × 3mm DFN

LT3686EDDTRPBF 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, SOLCC10,.12,20
针数:10Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.15模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:37 V最小输入电压:3.6 V
标称输入电压:10 VJESD-30 代码:S-PDSO-N10
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:2.65 A
标称输出电压:3.3 V封装主体材料:PLASTIC/EPOXY
封装代码:HVSON封装等效代码:SOLCC10,.12,20
封装形状:SQUARE封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:0.8 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:2500 kHz技术:BIPOLAR
温度等级:AUTOMOTIVE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:30
宽度:3 mmBase Number Matches:1

LT3686EDDTRPBF 数据手册

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LT3686  
37V/1.2A Step-Down  
Regulator in 3mm × 3mm DFN  
FeAtures  
Description  
The LT®3686 is a current mode PWM step-down DC/DC  
converter with an internal 1.2A power switch, packaged in  
10-lead 3mm × 3mm DFN. The wide input range of 3.6V to  
37V makes the LT3686 suitable for regulating power from  
awidevarietyofsources,including24Vindustrialsupplies  
and automotive batteries. Its high maximum frequency al-  
lows the use of tiny inductors and capacitors, resulting in  
a very small solution. Operating frequency above the AM  
band avoids interfering with radio reception, making the  
LT3686 particularly suitable for automotive applications.  
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Wide Input Range:  
Operation from 3.6V to 37V  
Overvoltage Lockout Protects Circuit Through  
55V Transients  
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Low Minimum On-Time:  
Converts 16V to 3.3V  
1.2A Output Current  
at 2MHz  
IN  
OUT  
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n
n
n
n
n
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n
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Adjustable Frequency: 300kHz to 2.5MHz  
Constant Switching Frequency at Light Loads  
Tracking and Soft-Start  
Precision UVLO  
Cycle-by-cycle current limit and DA current sense provide  
protectionagainstfaultconditions.Soft-startandfrequency  
foldback eliminate input current surge during start-up. An  
optional internal regulated active load at the output via the  
BDpinkeepstheLT3686atfullswitchingfrequencyatlight  
loads, resulting in low, predictable output ripple above the  
audioandAMbands.Internalcompensationandaninternal  
boost diode reduce external component count.  
Short-Circuit Robust  
I in Shutdown <1µA  
Q
Internally Compensated  
10-Lead 3mm × 3mm DFN Package  
ApplicAtions  
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Automotive Systems  
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.  
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Battery-Powered Equipment  
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Wall Transformer Regulation  
Distributed Supply Regulation  
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typicAl ApplicAtion  
3.3V Step-Down Converter  
12VIN Efficiency (2.1MHz)  
90  
80  
V
IN  
V
BD  
IN  
6V TO 37V  
3.3V  
OUT  
2.2µF  
EN/UVLO  
BOOST  
0.22µF  
6.8µH  
70  
60  
50  
40  
30  
20  
10  
0
5V  
OUT  
LT3686  
GND  
V
3.3V  
1.2A  
SW  
MODE  
OUT  
MBRM140  
31.6k  
SS  
RT  
DA  
FB  
10nF  
10k  
22µF  
15.4k  
3686 TA01a  
0
400  
600  
800 1000 1200  
LOAD CURRENT (mA)  
200  
(V 6V TO 16V AT 2.1MHz)  
IN  
3686 TA01b  
3686fa  

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