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LM2619MTC/NOPB PDF预览

LM2619MTC/NOPB

更新时间: 2024-11-26 14:52:27
品牌 Logo 应用领域
德州仪器 - TI 光电二极管
页数 文件大小 规格书
16页 791K
描述
IC,SMPS CONTROLLER,CURRENT/VOLTAGE,TSSOP,14PIN,PLASTIC

LM2619MTC/NOPB 技术参数

是否Rohs认证:符合生命周期:Obsolete
包装说明:TSSOP, TSSOP14,.25Reach Compliance Code:compliant
风险等级:5.83Is Samacsys:N
控制模式:CURRENT/VOLTAGE-MODEJESD-30 代码:R-PDSO-G14
JESD-609代码:e3湿度敏感等级:1
端子数量:14最高工作温度:85 °C
最低工作温度:-25 °C最大输出电流:0.62 A
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP14,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH认证状态:Not Qualified
子类别:Switching Regulator or Controllers表面贴装:YES
最大切换频率:800 kHz温度等级:OTHER
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.635 mm端子位置:DUAL
Base Number Matches:1

LM2619MTC/NOPB 数据手册

 浏览型号LM2619MTC/NOPB的Datasheet PDF文件第2页浏览型号LM2619MTC/NOPB的Datasheet PDF文件第3页浏览型号LM2619MTC/NOPB的Datasheet PDF文件第4页浏览型号LM2619MTC/NOPB的Datasheet PDF文件第5页浏览型号LM2619MTC/NOPB的Datasheet PDF文件第6页浏览型号LM2619MTC/NOPB的Datasheet PDF文件第7页 
August 2003  
LM2619MTC  
500mA Step-Down DC-DC Converter  
General Description  
Key Specifications  
n Operates from a single LiION cell (2.8V to 5.5V)  
n Output voltage range of 1.5V to 3.6V  
2% DC feedback voltage precision  
The LM2619MTC step down DC-DC converter is optimized  
for powering circuits from a single Lithium-Ion cell. It steps  
down an input voltage of 2.8V to 5.5V to an output of 1.5V to  
3.6V at up to 500mA. Output voltage is set using resistor  
feedback dividers.  
n
n 500mA maximum load capability  
n 600µA typ PWM mode quiescent current  
n 0.02µA typ shutdown current  
n 600kHz PWM switching frequency  
n SYNC input for PWM mode frequency synchronization  
from 500kHz to 1MHz  
n High efficiency (Up to 95%) in PWM mode from internal  
synchronous rectification  
The device offers three modes for mobile phones and similar  
portable applications. Fixed-frequency PWM mode mini-  
mizes RF interference. A SYNC input allows synchronizing  
the switching frequency in a range of 500kHz to 1MHz. Low  
current hysteretic PFM mode reduces quiescent current to  
160µA (typ). Shutdown mode turns the device off and re-  
duces battery consumption to 0.02µA (typ.).  
n 100% Maximum Duty Cycle for Lowest Dropout  
Current limit and thermal shutdown features protect the de-  
vice and system during fault conditions.  
Features  
The LM2619MTC is available in a 14 pin TSSOP package. A  
high switching frequency (600kHz) allows use of tiny  
surface-mount components.  
n 14-pin TSSOP package  
n Uses small ceramic capacitors  
n 5mV typ PWM mode output voltage ripple(COUT = 22µF)  
n Internal soft start  
The device features external compensation to tailor the re-  
sponse to a wide range of operating conditions.  
n Current overload protection  
n Thermal Shutdown  
n External compensation  
Applications  
n Mobile Phones  
n Hand-Held Radios  
n RF PC Cards  
n Wireless LAN Cards  
Typical Application Circuits  
20065101  
FIGURE 1. Typical Circuit for 1.8V Output Voltage  
© 2003 National Semiconductor Corporation  
DS200651  
www.national.com  
PrintDate=2003/08/20 PrintTime=18:54:04 801627bc ds200651_p Rev. No. 1.25 cmserv Proof  
Seq=1  

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