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LT3686IDD#PBF PDF预览

LT3686IDD#PBF

更新时间: 2024-01-18 06:26:23
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管
页数 文件大小 规格书
28页 506K
描述
LT3686 - 37V/1.2A Step-Down Regulator in 3mm x 3mm DFN; Package: DFN; Pins: 10; Temperature Range: -40°C to 85°C

LT3686IDD#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, SOLCC10,.12,20
针数:10Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:7.52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

LT3686IDD#PBF 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
n
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 BD pin keeps the LT3686 at full switching frequency  
at light loads, resulting in low, predictable output ripple  
abovetheaudioandAMbands.Internalcompensationand  
an internal 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, 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.  
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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  
3686fc  
1

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