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LTC3405ES6#TR PDF预览

LTC3405ES6#TR

更新时间: 2024-01-09 07:04:53
品牌 Logo 应用领域
凌特 - Linear 稳压器开关光电二极管
页数 文件大小 规格书
16页 235K
描述
LTC3405 - 1.5MHz, 300mA Synchronous Step-Down Regulator in ThinSOT; Package: SOT; Pins: 6; Temperature Range: -40°C to 85°C

LTC3405ES6#TR 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:SOT包装说明:TSSOP, TSOP6,.11,37
针数:6Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.11模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
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:R-PDSO-G6
JESD-609代码:e3长度:2.9 mm
湿度敏感等级:1功能数量:1
端子数量:6最高工作温度:70 °C
最低工作温度:最大输出电流:0.63 A
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSOP6,.11,37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:1.08 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
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.95 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:1.625 mm
Base Number Matches:1

LTC3405ES6#TR 数据手册

 浏览型号LTC3405ES6#TR的Datasheet PDF文件第2页浏览型号LTC3405ES6#TR的Datasheet PDF文件第3页浏览型号LTC3405ES6#TR的Datasheet PDF文件第4页浏览型号LTC3405ES6#TR的Datasheet PDF文件第5页浏览型号LTC3405ES6#TR的Datasheet PDF文件第6页浏览型号LTC3405ES6#TR的Datasheet PDF文件第7页 
LTC3405  
1.5MHz, 300mA  
Synchronous Step-Down  
Regulator in ThinSOT  
U
DESCRIPTIO  
FEATURES  
High Efficiency: Up to 96%  
The LTC®3405 is a high efficiency monolithic synchro-  
nous buck regulator using a constant frequency, current  
mode architecture. Supply current during operation is  
only 20µA and drops to <1µA in shutdown. The 2.5V to  
5.5VinputvoltagerangemakestheLTC3405ideallysuited  
forsingleLi-Ionbattery-poweredapplications. 100%duty  
cycle provides low dropout operation, extending battery  
life in portable systems.  
Very Low Quiescent Current: Only 20µA  
During Operation  
300mA Output Current at VIN = 3V  
2.5V to 5.5V Input Voltage Range  
1.5MHz Constant Frequency Operation  
No Schottky Diode Required  
Low Dropout Operation: 100% Duty Cycle  
0.8V Reference Allows Low Output Voltages  
Shutdown Mode Draws <1µA Supply Current  
±2% Output Voltage Accuracy  
Switching frequency is internally set at 1.5MHz, allowing  
the use of small surface mount inductors and capacitors.  
Current Mode Operation for Excellent Line and  
Load Transient Response  
The internal synchronous switch increases efficiency and  
eliminates the need for an external Schottky diode. Low  
output voltages are easily supported with the 0.8V feed-  
back reference voltage. The LTC3405 is available in a low  
profile (1mm) ThinSOT package.  
Overtemperature Protected  
Low Profile (1mm) ThinSOTTM Package  
U
APPLICATIO S  
For new designs, refer to the LTC3405A data sheet. For  
fixed 1.5V and 1.8V output versions, refer to the  
LTC3405A-1.5/LTC3405A-1.8 data sheet.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
Protected by U.S. Patents, including 6580258, 5481178.  
Cellular Telephones  
Personal Information Appliances  
Wireless and DSL Modems  
Digital Still Cameras  
MP3 Players  
Portable Instruments  
U
TYPICAL APPLICATIO  
100  
V
= 3.6V  
= 4.2V  
IN  
95  
90  
85  
80  
75  
70  
65  
60  
4.7µH**  
V
IN  
4
3
V
*
OUT  
2.7V  
V
SW  
LTC3405  
IN  
3.3V  
22pF  
C
TO 5.5V  
IN  
+
2.2µF  
CER  
††  
C
V
IN  
1
6
OUT  
RUN  
33µF  
5
MODE  
V
FB  
887k  
V
IN  
= 5.5V  
GND  
280k  
2
3405 F01a  
*V  
CONNECTED TO V FOR 2.7V < V < 3.3V  
IN IN  
OUT  
**MURATA LQH3C4R7M34  
TAIYO YUDEN LMK212BJ225MG  
††AVX TPSB336K006R0600  
0.1  
1000  
1
10  
100  
OUTPUT CURRENT (mA)  
3405 F01b  
Figure 1a. High Efficiency Step-Down Converter  
Figure 1b. Efficiency vs Load Current  
3405fa  
1

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