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LM2672LD-5.0/NOPB PDF预览

LM2672LD-5.0/NOPB

更新时间: 2024-09-29 13:09:19
品牌 Logo 应用领域
德州仪器 - TI 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
16页 667K
描述
2.2A SWITCHING REGULATOR, 275kHz SWITCHING FREQ-MAX, PDSO16, LLP-16

LM2672LD-5.0/NOPB 技术参数

是否无铅:含铅生命周期:Obsolete
零件包装代码:SOIC包装说明:LLP-16
针数:16Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.55Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING REGULATOR最大输入电压:40 V
最小输入电压:6.5 V标称输入电压:12 V
JESD-30 代码:S-PDSO-N16长度:5 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:2.2 A
封装主体材料:PLASTIC/EPOXY封装代码:VSON
封装形状:SQUARE封装形式:SMALL OUTLINE, VERY THIN PROFILE
峰值回流温度(摄氏度):235认证状态:Not Qualified
座面最大高度:0.8 mm表面贴装:YES
切换器配置:BUCK最大切换频率:275 kHz
技术:DMOS温度等级:AUTOMOTIVE
端子形式:NO LEAD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:30
宽度:5 mmBase Number Matches:1

LM2672LD-5.0/NOPB 数据手册

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TI Confidential - NDA Restrictions  
LM2731  
www.ti.com  
SNVS217F MAY 2004REVISED NOVEMBER 2012  
LM2731 0.6/1.6 MHz Boost Converters With 22V Internal FET Switch in SOT-23  
Check for Samples: LM2731  
1
FEATURES  
DESCRIPTION  
The LM2731 switching regulators are current-mode  
boost converters operating at fixed frequencies of 1.6  
MHz (“X” option) and 600 kHz (“Y” option).  
2
22V DMOS FET Switch  
1.6 MHz (“X”), 0.6 MHz (“Y”) Switching  
Frequency  
The use of SOT-23 package, made possible by the  
minimal power loss of the internal 1.8A switch, and  
use of small inductors and capacitors result in the  
industry's highest power density. The 22V internal  
switch makes these solutions perfect for boosting to  
voltages up to 20V.  
Low RDS(ON) DMOS FET  
Switch Current up to 1.8A  
Wide Input Voltage Range (2.7V–14V)  
Low Shutdown Current (<1 µA)  
5-Lead SOT-23 Package  
These parts have a logic-level shutdown pin that can  
be used to reduce quiescent current and extend  
battery life.  
Uses Tiny Capacitors and Inductors  
Cycle-by-Cycle Current Limiting  
Internally Compensated  
Protection is provided through cycle-by-cycle current  
limiting and thermal shutdown. Internal compensation  
simplifies design and reduces component count.  
APPLICATIONS  
White LED Current Source  
PDA’s and Palm-Top Computers  
Digital Cameras  
Table 1. Switch Frequency  
X
Y
1.6 MHz  
0.6 MHz  
Portable Phones and Games  
Local Boost Regulator  
Typical Application Circuit  
Efficiency vs Load Current  
D1  
L1/10mH  
100  
90  
MBR0520  
5 VIN  
5 - 12V Boost  
^ó_ ëꢀŒ•]}v  
U1  
VIN  
SW  
12V  
OUT  
500mA  
(TYP)  
R3  
51K  
R1/117K  
LM2731 —X“  
FB  
SHDN  
SHDN  
GND  
80  
70  
C1  
2.2mF  
CF  
R2  
13.3K  
C2  
220pF  
GND  
4.7mF  
0
500  
100 200 300 400  
LOAD CURRENT (mA)  
Efficiency vs Load Current  
D1  
MBR0520  
L1/6.8mH  
100  
90  
3.3 VIN  
SHDN  
3.3 -5V Boost  
^ò_ ëꢀŒ•]}v  
U1  
VIN  
SW  
5V  
OUT  
R3  
51K  
R1/40.5K  
LM2731 —Y“  
FB  
700mA  
(TYP)  
SHDN  
GND  
80  
70  
C1  
2.2mF  
CF  
470pF  
R2  
13.3K  
C2  
22mF  
GND  
0
400 600  
800  
200  
LOAD CURRENT (mA)  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004–2012, Texas Instruments Incorporated  

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