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LM25017SD/NOPB PDF预览

LM25017SD/NOPB

更新时间： 2024-11-14 13:09:19
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
19页 337K
描述
7.5-48V Wide Vin, 650mA Constant On-Time Synchronous Buck Regulator 8-WSON -40 to 125

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LM25017SD/NOPB 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active包装说明：WSON-8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.69Samacsys Confidence：3
Samacsys Status：ReleasedSamacsys PartID：747929
Samacsys Pin Count：9Samacsys Part Category：Integrated Circuit
Samacsys Package Category：Small Outline No-leadSamacsys Footprint Name：NGU0008B
Samacsys Released Date：2020-01-03 03:23:41Is Samacsys：N
其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 1.225V模拟集成电路 - 其他类型：SWITCHING REGULATOR
最大输入电压：48 V最小输入电压：7.5 V
标称输入电压：9 VJESD-30 代码：S-PDSO-N8
JESD-609代码：e3长度：4 mm
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：1.3 A
最大输出电压：40 V最小输出电压：1.25 V
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260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：1000 kHz温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.8 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4 mm
Base Number Matches：1

LM25017SD/NOPB 数据手册

 浏览型号LM25017SD/NOPB的Datasheet PDF文件第2页浏览型号LM25017SD/NOPB的Datasheet PDF文件第3页浏览型号LM25017SD/NOPB的Datasheet PDF文件第4页浏览型号LM25017SD/NOPB的Datasheet PDF文件第5页浏览型号LM25017SD/NOPB的Datasheet PDF文件第6页浏览型号LM25017SD/NOPB的Datasheet PDF文件第7页 
LM25017  
www.ti.com  
SNVS951 –DECEMBER 2012  
LM25017 48V, 650mA Constant On-Time Synchronous Buck Regulator  
Check for Samples: LM25017  
1
FEATURES  
•
•
•
•
Frequency Adjustable to 1MHz  
Adjustable Undervoltage Lockout (UVLO)  
Remote Shutdown  
2
•
•
•
•
•
•
•
•
•
Integrated 48V, High and Low Side Switches  
No Schottky Required  
Thermal Shutdown  
Constant On-time Control  
No Loop Compensation Required  
Ultra-Fast Transient Response  
Nearly Constant Operating Frequency  
Intelligent Peak Current Limit  
APPLICATIONS  
•
•
•
•
Industrial Equipments  
Smart Power Meters  
Telecommunication Systems  
Isolated Bias Supply  
Adjustable Output Voltage from 1.225V  
Precision 2% Feedback Reference  
DESCRIPTION  
The LM25017 is a 48V, 650mA synchronous step-down regulator with integrated high side and low side  
MOSFETs. The constant-on-time (COT) control scheme employed in the LM25017 requires no loop  
compensation, provides excellent transient response, and enables very low step-down ratios. The on-time varies  
inversely with the input voltage resulting in nearly constant frequency over the input voltage range. A high voltage  
startup regulator provides bias power for internal operation of the IC and for integrated gate drivers.  
A peak current limit circuit protects against overload conditions. The undervoltage lockout (UVLO) circuit allows  
the input undervoltage threshold and hysteresis to be independently programmed. Other protection features  
include thermal shutdown and bias supply undervoltage lockout (VCC UVLO).  
The LM25017 is available in LLP-8 and PSOP-8 plastic packages.  
Packages  
•
•
LLP-8  
PSOP-8  
Typical Application  
LM25017  
9V-48V  
VIN  
7
BST  
2
4
+
V
L1  
IN  
VOUT  
C
BST  
8
+
SW  
C
IN  
RON  
R
UV2  
C
VCC  
R
ON  
VCC  
FB  
R
FB2  
3
R
C
6
5
UVLO  
SD  
+
R
UV1  
RTN  
C
OU  
T
R
FB1  
1
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 © 2012, Texas Instruments Incorporated  
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LM25017SD/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM25017SDE/NOPB TI

类似代替

 48V, 650mA Constant On-Time Synchronous Buck Regulator
LM25017SDX/NOPB TI

类似代替

 7.5-48V Wide Vin, 650mA Constant On-Time Synchronous Buck Regulator 8-WSON -40 to 125

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