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LT3407EMSE-2 PDF预览

LT3407EMSE-2

更新时间: 2024-01-05 13:24:27
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 221K
描述
IC 1.6 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10, PLASTIC, MSOP-10, Switching Regulator or Controller

LT3407EMSE-2 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:HTSSOP,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.7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 V
JESD-30 代码:S-PDSO-G10JESD-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:70 °C最低工作温度:
最大输出电流:1.6 A封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP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):250
认证状态:Not Qualified座面最大高度:1.1 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:2700 kHz温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)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:NOT SPECIFIED宽度:3 mm
Base Number Matches:1

LT3407EMSE-2 数据手册

 浏览型号LT3407EMSE-2的Datasheet PDF文件第2页浏览型号LT3407EMSE-2的Datasheet PDF文件第3页浏览型号LT3407EMSE-2的Datasheet PDF文件第4页浏览型号LT3407EMSE-2的Datasheet PDF文件第5页浏览型号LT3407EMSE-2的Datasheet PDF文件第6页浏览型号LT3407EMSE-2的Datasheet PDF文件第7页 
LTC3407-2  
Dual Synchronous, 800mA,  
2.25MHz Step-Down  
DC/DC Regulator  
U
DESCRIPTIO  
FEATURES  
The LTC®3407-2 is a dual, constant frequency, synchro-  
nous step down DC/DC converter. Intended for low power  
applications, it operates from 2.5V to 5.5V input voltage  
range and has a constant 2.25MHz switching frequency,  
allowing the use of tiny, low cost capacitors and inductors  
with a profile 1.2mm. Each output voltage is adjustable  
from 0.6V to 5V. Internal synchronous 0.35Ω, 1.2A power  
switches provide high efficiency without the need for  
external Schottky diodes.  
High Efficiency: Up to 95%  
Very Low Quiescent Current: Only 40μA  
2.25MHz Constant Frequency Operation  
High Switch Current: 1.2A on Each Channel  
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  
Ultralow Shutdown Current: IQ < 1μA  
Output Voltages from 5V down to 0.6V  
Power-On Reset Output  
Externally Synchronizable Oscillator  
A user selectable mode input is provided to allow the user  
to trade-off noise ripple for low power efficiency. Burst  
Mode® operation provides high efficiency at light loads,  
while Pulse Skip Mode provides low noise ripple at light  
loads.  
Small Thermally Enhanced MSOP and 3mm × 3mm  
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.  
DFN Packages  
U
APPLICATIO S  
PDAs/Palmtop PCs  
, LT, LTC, LTM, and Burst Mode are registered trademarks of Linear Technology  
Corporation. All other trademarks are the property of their respective owners.  
Digital Cameras  
Cellular Phones  
Portable Media Players  
PC Cards  
Wireless and DSL Modems  
U
TYPICAL APPLICATIO  
V
= 2.5V*  
TO 5.5V  
LTC3407-2 Efficiency Curve  
IN  
R5  
100  
C1  
100k  
10μF  
RUN2  
V
RUN1  
POR  
IN  
95  
90  
85  
80  
75  
70  
65  
60  
2.5V  
MODE/SYNC  
RESET  
1.8V  
LTC3407-2  
L2  
L1  
2.2μH  
2.2μH  
V
= 2.5V  
OUT2  
AT 800mA  
V
= 1.8V  
OUT1  
SW2  
SW1  
AT 800mA  
C5, 22pF  
C4, 22pF  
V
V
FB1  
FB2  
R4  
887k  
R2  
604k  
GND  
C3  
10μF  
C2  
10μF  
V
= 3.3V  
R3  
280k  
R1  
301k  
IN  
Burst Mode OPERATION  
NO LOAD ON OTHER CHANNEL  
1
10  
100  
1000  
3407 TA01  
C1, C2, C3: TAIYO YUDEN JMK316BJ106ML  
L1, L2: MURATA LQH32CN2R2M33  
LOAD CURRENT (mA)  
*V CONNECTED TO V FOR V 2.8V  
OUT  
IN IN  
3407 TA02  
Figure 1. 2.5V/1.8V at 800mA Step-Down Regulators  
34072fa  
1

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