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LT3434IFE

更新时间： 2024-11-09 03:01:47
品牌 Logo 应用领域
凌特 - Linear 稳压器开关
页数 文件大小 规格书
24页 364K
描述
High Voltage 3A, 200kHz Step-Down Switching Regulator with 100uA Quiescent Current

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中文翻译

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LT3434IFE 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：HTSSOP, TSSOP16,.25
针数：16Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.24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：3.3 V标称输入电压：12 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：-40 °C
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：230 kHz温度等级：AUTOMOTIVE
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

LT3434IFE 数据手册

 浏览型号LT3434IFE的Datasheet PDF文件第2页浏览型号LT3434IFE的Datasheet PDF文件第3页浏览型号LT3434IFE的Datasheet PDF文件第4页浏览型号LT3434IFE的Datasheet PDF文件第5页浏览型号LT3434IFE的Datasheet PDF文件第6页浏览型号LT3434IFE的Datasheet PDF文件第7页 
LT3434  
High Voltage 3A, 200kHz  
Step-Down Switching Regulator  
with 100µA Quiescent Current  
U
DESCRIPTIO  
FEATURES  
The LT®3434 is a 200kHz monolithic buck switching  
regulator that accepts input voltages up to 60V. A high  
efficiency3A,0.1Ωswitchisincludedonthediealongwith  
all the necessary oscillator, control and logic circuitry.  
Current mode topology is used for fast transient response  
and good loop stability.  
■
Wide Input Range: 3.3V to 60V  
■
3A Peak Switch Current  
Burst Mode® Operation: 100µA Quiescent Current**  
Low Shutdown Current: IQ < 1µA  
Power Good Flag with Programmable Threshold  
Load Dump Protection to 60V  
■
■
■
■
■
■
■
200kHz Switching Frequency  
Innovative design techniques integrated in a new high  
voltage process achieve high efficiency over a wide input  
range. Efficiency is maintained over a wide output current  
rangebyemployingBurstModeoperationatlowcurrents,  
utilizing the output to bias the internal circuitry, and by  
using a supply boost capacitor to fully saturate the power  
switch. Patented circuitry maintains peak switch current  
over the full duty cycle range.* Shutdown reduces input  
supply current to less than 1µA. External synchronization  
canbeimplementedbydrivingtheSYNCpinwithlogic-level  
inputs. A single capacitor from the CSS pin to the output  
providesacontrolledoutputvoltageramp(soft-start).The  
device also has a power good flag with a programmable  
thresholdandtime-out,andthermalshutdownprotection.  
Saturating Switch Design: 0.1Ω  
Peak Switch Current Maintained Over  
Full Duty Cycle Range*  
■
■
■
■
1.25V Feedback Reference Voltage  
Easily Synchronizable  
Soft-Start Capability  
Small 16-Pin Thermally Enhanced TSSOP Package  
U
APPLICATIO S  
■
High Voltage Power Conversion  
■
14V and 42V Automotive Systems  
■
Industrial Power Systems  
■
Distributed Power Systems  
The LT3434 is available in a 16-pin TSSOP package with  
exposed pad leadframe for low thermal resistance.  
■
Battery-Powered Systems  
, LTC and LT are registered trademarks of Linear Technology Corporation. All other  
trademarks are the property of their respective owners. Burst Mode is a registered  
trademark of Linear Technology Corporation. *Protected by U.S. Patents including  
6498466. **See Burst Mode Operation section for conditions.  
U
TYPICAL APPLICATIO  
Efficiency and Power Loss  
vs Load Current  
Supply Current vs  
Input Voltage  
14V to 3.3V Step-Down Converter with  
150  
125  
100  
75  
100  
75  
50  
25  
0
10  
100µA No Load Quiescent Current  
V
= 12V  
V
= 3.3V  
IN  
L = 33µH  
= 100µF  
OUT  
V
OUT  
= 5V  
V
3.3V  
2A  
C
OUT  
OUT  
V
IN  
V
BOOST  
SW  
IN  
1
4.7µF  
100V  
CER  
33µH  
0.68µF  
4148  
EFFICIENCY  
= 3.3V  
SHDN  
0.1µF  
LT3434  
V
OUT  
30MQ100  
C
SS  
0.1  
0.01  
0.001  
V
C
C
470pF  
V
BIAS  
4700pF  
10k  
TYPICAL POWER  
LOSS  
165k  
1%  
50  
27pF  
FB  
100µF  
6.3V  
TANT  
T
PGFB  
PG  
1µF  
SYNC  
GND  
25  
100k  
1%  
0
3434 TA01  
0
10  
30  
40  
50  
60  
0.0001 0.001  
0.1  
0.01  
LOAD CURRENT (A)  
1
10  
20  
INPUT VOLTAGE (V)  
3434 TA02a  
3434 TA02b  
3434f  
1
1234567...24

中文翻译

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LT3434IFE 替代型号

型号 品牌 替代类型 描述 数据表
LT3434EFE#TRPBF Linear

完全替代

 LT3434 - High Voltage 3A, 200kHz Step-Down Switching Regulator with 100&#181;A Quiesce
LT3434IFE#TRPBF Linear

完全替代

 LT3434 - High Voltage 3A, 200kHz Step-Down Switching Regulator with 100&#181;A Quiesce
LT3434EFE Linear

完全替代

 High Voltage 3A, 200kHz Step-Down Switching Regulator with 100uA Quiescent Current

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