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LT3430EFE PDF预览

LT3430EFE

更新时间: 2024-11-22 22:07:19
品牌 Logo 应用领域
凌特 - Linear 稳压器开关
页数 文件大小 规格书
28页 302K
描述
High Voltage, 3A, 200kHz Step-Down Switching Regulator

LT3430EFE 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:TSSOP包装说明:4.40 MM, PLASTIC, TSSOP-16
针数:16Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.09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:e0
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:HTSSOP封装等效代码:TSSOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):235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:228 kHz温度等级:OTHER
端子面层:Tin/Lead (Sn/Pb)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:20宽度:4.4 mm
Base Number Matches:1

LT3430EFE 数据手册

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Final Electrical Specifications  
LT3430  
High Voltage, 3A,  
200kHz Step-Down  
Switching Regulator  
August 2002  
U
FEATURES  
DESCRIPTIO  
Wide Input Range: 5.5V to 60V  
TheLT®3430isa200kHzmonolithicbuckswitchingregu-  
latorthatacceptsinputvoltagesupto60V.Ahighefficiency  
3A,0.1switchisincludedonthediealongwithallthenec-  
essaryoscillator,controlandlogiccircuitry.Acurrentmode  
architectureprovidesfasttransientresponseandexcellent  
loop stability.  
3A Peak Switch Current  
Small Thermally Enhanced 16-Pin TSSOP Package  
Constant 200kHz 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.  
Ashutdownpinreducessupplycurrentto30µAandaSYNC  
pincanbeexternallysynchronizedfrom228kHzto700kHz  
with a logic level input.  
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 LT3430 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
0.68µF  
Efficiency vs Load Current  
BOOST  
22µH  
V
V
IN  
OUT  
3, 4  
2, 5  
5.5V*  
V
SW  
5V  
IN  
100  
TO 60V  
2A  
V
= 5V  
OUT  
30BQ060  
4.7µF 100V  
LT3430  
L = 27µH  
CERAMIC†  
V
V
= 12V  
= 42V  
IN  
IN  
+
100µF 10V  
SOLID  
TANTALUM  
90  
80  
70  
60  
50  
15  
14  
10  
12  
OFF ON  
SHDN  
BIAS  
FB  
15.4k  
SYNC  
GND  
V
4.99k  
C
1, 8, 9, 16  
11  
220pF  
3.3k  
0.022µF  
0
0.5  
1.0  
1.5  
2.0  
2.5  
LOAD CURRENT (A)  
*FOR INPUT VOLTAGES BELOW 7.5V, SOME RESTRICTIONS MAY APPLY  
UNITED CHEMI-CON  
3430 TA02  
3430 TA01  
sn3430 3430is  
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.  
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-  
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.  
1

LT3430EFE 替代型号

型号 品牌 替代类型 描述 数据表
LT3430EFE#TR Linear

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