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LT1619ES8#TR PDF预览

LT1619ES8#TR

更新时间: 2024-02-11 08:53:54
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管控制器
页数 文件大小 规格书
20页 257K
描述
LT1619 - Low Voltage Current Mode PWM Controller; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C

LT1619ES8#TR 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:SOIC包装说明:SOP, SOP8,.25
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.14模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:18 V最小输入电压:1.9 V
标称输入电压:2.5 VJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.9 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:70 °C
最低工作温度:最大输出电流:1.5 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):250
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:SINGLE最大切换频率:360 kHz
技术:BIPOLAR温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9116 mm
Base Number Matches:1

LT1619ES8#TR 数据手册

 浏览型号LT1619ES8#TR的Datasheet PDF文件第2页浏览型号LT1619ES8#TR的Datasheet PDF文件第3页浏览型号LT1619ES8#TR的Datasheet PDF文件第4页浏览型号LT1619ES8#TR的Datasheet PDF文件第5页浏览型号LT1619ES8#TR的Datasheet PDF文件第6页浏览型号LT1619ES8#TR的Datasheet PDF文件第7页 
LT1619  
Low Voltage Current Mode  
PWM Controller  
U
FEATURES  
DESCRIPTIO  
Wide VIN Range: 1.9V to 18V  
The LT®1619 is a fixed frequency PWM controller for  
implementing current mode DC/DC converters with mini-  
mum external parts. The LT1619 operates with input  
voltages ranging from 1.9V to 18V and is suitable for a  
variety of battery-powered and distributed DC/DC con-  
verters. The internal rail-to-rail N-channel MOSFET driver  
operates either from the input in the nonbootstrapped  
mode or from the output in bootstrapped operation. The  
driver is designed to drive a low side power transistor in  
boost, SEPIC, flyback and other topologies.  
300kHz Fixed Frequency Current Mode Control  
1A Rail-to-Rail N-Channel MOSFET Driver  
Low 53mV Current Limit Threshold Voltage  
Improves Efficiency  
Implements Boost, SEPIC and Flyback Converters  
Requiring Low Side Power Transistors  
Internal Current Sense Amplifier  
with Leading Edge Blanking  
Up to 500kHz External Synchronization  
Burst Mode® Operation for High Efficiency  
Converter efficiency is improved at heavy loads with a  
53mV current sense voltage and at light load with Burst  
Mode operation. The operating frequency is internally set  
at 300kHz. The oscillator can also be synchronized exter-  
nallyupto500kHz.Noloadquiescentcurrentis140µAand  
shutdown current is 15µA.  
at Light Load  
140µA Quiescent Current  
15µA Shutdown Current  
8-Lead MSOP and SO Packages  
U
APPLICATIO S  
The LT1619 is available in 8-lead MSOP and SO packages.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Burst Mode is a registered trademark of Linear Technology Corporation.  
3.3V to 5V DC/DC Converters  
Distributed Power Supplies  
Isolated Power Supplies  
U
TYPICAL APPLICATIO  
Efficiency  
V
IN  
3.3V  
95  
90  
1
2
3
4
8
7
6
5
L1  
37.4k  
S/S  
FB  
V
IN  
+
5.6µH  
C1  
0.1µF  
5A  
22µF  
12.4k  
85  
80  
75  
70  
DRV  
LT1619  
GATE  
V
OUT  
5V  
0.1µF  
2.2A  
M1  
Si9804  
D1  
V
C
+
75k  
15nF  
C
OUT  
440µF  
GND SENSE  
220pF  
R
SENSE  
0.01Ω  
1619 F01  
C1: PANASONIC EEFCDOK220R  
1
10  
100  
1000  
C
: KEMET T495X227K010AS (×2)  
OUT  
LOAD CURRENT (mA)  
D1: MBRD835L  
1619 F01a  
L1: COILCRAFT DO5022P-562  
Figure 1. High Efficiency 3.3V to 5V DC/DC Converter  
1619fa  
1

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型号 品牌 替代类型 描述 数据表
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