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LT3431EFE#PBF PDF预览

LT3431EFE#PBF

更新时间: 2024-11-05 19:44:31
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 294K
描述
LT3431 - High Voltage, 3A, 500kHz Step-Down Switching Regulator; Package: TSSOP; Pins: 16; Temperature Range: -40°C to 85°C

LT3431EFE#PBF 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:TSSOP包装说明:TSSOP, TSSOP16,.25
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:3.4模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE最大输入电压:60 V
最小输入电压:5.5 V标称输入电压:15 V
JESD-30 代码:R-PDSO-G16JESD-609代码:e3
长度:5 mm湿度敏感等级:1
功能数量:1端子数量:16
最高工作温度:125 °C最低工作温度:
最大输出电流:6.5 A封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.1 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:570 kHz技术:BIPOLAR
温度等级:OTHER端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:4.4 mmBase Number Matches:1

LT3431EFE#PBF 数据手册

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LT3431  
High Voltage, 3A,  
500kHz Step-Down  
Switching Regulator  
U
FEATURES  
DESCRIPTIO  
Wide Input Range: 5.5V to 60V  
TheLT®3431isa500kHzmonolithicbuckswitchingregu-  
latorthatacceptsinputvoltagesupto60V.Ahighefficiency  
3A,0.1switchisincludedonthediealongwithallthenec-  
essaryoscillator,controlandlogiccircuitry.Acurrentmode  
architectureprovidesfasttransientresponseandgoodloop  
stability.  
3A Peak Switch Current  
Small Thermally Enhanced 16-Pin TSSOP Package  
Constant 500kHz Switching Frequency  
Saturating Switch Design: 0.1Ω  
Peak Switch Current Maintained Over  
Full Duty Cycle Range  
Special design techniques and a new high voltage process  
achieve high efficiency over a wide input range. Efficiency  
ismaintainedoverawideoutputcurrentrangebyusingthe  
output to bias the circuitry and by utilizing a supply boost  
capacitor to saturate the power switch. Patented circuitry  
maintainspeakswitchcurrentoverthefulldutycyclerange.  
Ashutdownpinreducessupplycurrentto30µAandthede-  
vicecanbeexternallysynchronizedfrom580kHzto700kHz  
with logic level inputs.  
Effective Supply Current: 2.5mA  
Shutdown Current: 30µA  
1.2V Feedback Reference Voltage  
Easily Synchronizable  
Cycle-by-Cycle Current Limiting  
U
APPLICATIO S  
Industrial and Automotive Power Supplies  
The LT3431 is available in a thermally enhanced 16-pin  
TSSOP package.  
Portable Computers  
Battery Chargers  
Distributed Power Systems  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
5V, 2A Buck Converter  
MMSD914TI  
6
0.22µF  
Efficiency vs Load Current  
BOOST  
10µH**  
V
V
IN  
OUT  
3, 4  
2, 5  
12V  
(TRANSIENTS  
TO 60V)  
V
SW  
5V  
IN  
100  
2.2µF†  
100V  
CERAMIC  
2A  
V
= 12V  
IN  
30BQ060  
LT3431  
L = 15µH  
V
= 5V  
OUT  
47µF  
CERAMIC  
90  
80  
70  
60  
50  
15  
14  
10  
12  
SHDN  
BIAS  
FB  
V
= 3.3V  
OUT  
15.4k  
SYNC  
GND  
V
C
4.99k  
1, 8, 9, 16  
11  
220pF  
1.5k  
15nF  
0
0.5  
1.0  
1.5  
2.0  
2.5  
LOAD CURRENT (A)  
**  
INCREASE INDUCTOR VALUE FOR LOAD CURRENTS ABOVE 2A  
(SEE APPLICATIONS INFORMATION—MAXIMUM OUTPUT LOAD CURRENT)  
UNITED CHEMI-CON THCS50EZA225ZT  
3431 TA02  
3431 TA01  
sn3431 3431fs  
1

LT3431EFE#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LT3431EFE Linear

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High Voltage, 3A,500kHz Step-Down Switching Regulator

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