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Datasheet > LTC3407AEMSE#TR
LTC3407AEMSE#TR PDF预览

LTC3407AEMSE#TR

更新时间： 2024-01-12 21:26:41
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
16页 263K
描述
IC 1.25 A DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO10, PLASTIC, MSOP-10, Switching Regulator or Controller

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中文翻译

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LTC3407AEMSE#TR 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：MSOP
包装说明：HTSSOP, TSSOP10,.19,20针数：10
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.1
模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER控制模式：CURRENT-MODE
最大输入电压：5.5 V最小输入电压：2.5 V
标称输入电压：3.6 VJESD-30 代码：S-PDSO-G10
JESD-609代码：e0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：85 °C
最低工作温度：最大输出电流：1.25 A
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装等效代码：TSSOP10,.19,20封装形状：SQUARE
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：1800 kHz
技术：CMOS温度等级：COMMERCIAL EXTENDED
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
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：20宽度：3 mm
Base Number Matches：1

LTC3407AEMSE#TR 数据手册

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LTC3407A  
Dual Synchronous 600mA,  
1.5MHz Step-Down  
DC/DC Regulator  
U
DESCRIPTIO  
FEATURES  
The LTC®3407A is a dual, constant frequency, synchro-  
nousstep-downDC/DCconverter. Intendedforlowpower  
applications, it operates from a 2.5V to 5.5V input voltage  
range and has a constant 1.5MHz switching frequency,  
enabling the use of tiny, low cost capacitors and inductors  
1mm or less in height. Each output voltage is adjustable  
from 0.6V to 5V. Internal synchronous 0.35Ω, 1A power  
switches provide high efficiency without the need for  
external Schottky diodes.  
■
High Efficiency: Up to 96%  
■
Low Ripple (35mVPK-PK) Burst Mode Operation;  
IQ = 40µA  
■
1.5MHz Constant Frequency Operation  
■
No Schottky Diodes Required  
■
Low RDS(ON) Internal Switches: 0.35Ω  
■
Current Mode Operation for Excellent Line  
and Load Transient Response  
Short-Circuit Protected  
■
■
Low Dropout Operation: 100% Duty Cycle  
A user selectable mode input is provided to allow the user  
to trade-off ripple noise for low power efficiency. Burst  
Mode® operation provides the highest efficiency at light  
loads, while Pulse Skip Mode provides the lowest ripple  
noise at light loads.  
■
Ultralow Shutdown Current: IQ < 1µA  
■
Output Voltages from 5V down to 0.6V  
■
Power-On Reset Output  
■
Externally Synchronizable Oscillator  
■
Optional External Soft-Start  
■
To further maximize battery life, the P-channel MOSFETs  
are turned on continuously in dropout (100% duty cycle),  
and both channels draw a total quiescent current of only  
40µA. In shutdown, the device draws <1µA.  
, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology  
Corporation. All other trademarks are the property of their respective owners. Protected by  
U.S. Patents including 5481178, 6580258, 6304066, 6127815, 6498466, 6611131.  
Small Thermally Enhanced MSOP and 3mm × 3mm  
DFN Packages  
U
APPLICATIO S  
■
PDAs/Palmtop PCs  
■
Digital Cameras  
■
Cellular Phones  
Wireless and DSL Modems  
■
U
TYPICAL APPLICATIO  
1mm High 2.5V/1.8V at 600mA Step-Down Regulators  
LTC3407A Efficiency/Power Loss Curve  
100  
90  
80  
70  
60  
1
2.5V  
V = 2.5V  
IN  
TO 5.5V  
1.8V  
100k  
10µF  
0.1  
RUN/SS2  
V
RUN/SS1  
POR  
IN  
MODE/SYNC  
RESET  
LTC3407A  
50  
40  
0.01  
0.001  
0.0001  
2.2µH  
2.2µH  
V
OUT2  
= 2.5V  
V
= 1.8V  
OUT1  
SW2  
SW1  
AT 600mA  
AT 600mA  
22pF  
887k  
22pF  
887k  
30  
20  
V
= 3.3V  
IN  
Burst Mode OPERATION  
V
FB1  
V
FB2  
10  
0
NO LOAD ON OTHER CHANNEL  
GND  
280k  
442k  
10µF  
10µF  
1
10  
100  
1000  
LOAD CURRENT (mA)  
3407A TA02  
3407A TA01  
3407af  
1
1234567...16

中文翻译

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