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L5973D013TR PDF预览

L5973D013TR

更新时间: 2024-11-23 02:59:11
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 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PC
页数 文件大小 规格书
17页 300K
描述
2.5 A switch step down switching regulator?癎

L5973D013TR 技术参数

是否Rohs认证:符合生命周期:Active
零件包装代码:SOIC包装说明:HLSOP, SOP8,.25
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:11 weeks风险等级:0.87
Samacsys Confidence:3Samacsys Status:Released
Samacsys PartID:221768Samacsys Pin Count:9
Samacsys Part Category:Integrated CircuitSamacsys Package Category:Small Outline Packages
Samacsys Footprint Name:HSOP8 Exposed PadSamacsys Released Date:2015-06-29 00:00:00
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE最大输入电压:36 V
最小输入电压:4 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:4.9 mm湿度敏感等级:3
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:3.5 A封装主体材料:PLASTIC/EPOXY
封装代码:HLSOP封装等效代码:SOP8,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.7 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:280 kHz技术:MOS
温度等级:AUTOMOTIVE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:30
宽度:3.9 mmBase Number Matches:1

L5973D013TR 数据手册

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L5973D  
2.5 A switch step down switching regulator  
Features  
2.5 A internal switch  
Operating input voltage from 4 V to 36 V  
3.3 V / ( 2%) reference voltage  
Output voltage adjustable from 1.235 V to 35 V  
Low dropout operation: 100 % duty cycle  
250 kHz internally fixed frequency  
Voltage feedforward  
HSOP8 exposed pad  
Description  
The L5973D is a step down monolithic power  
switching regulator with a minimum switch current  
limit of 2.5 A so it is able to deliver more than 2 A  
DC current to the load depending on the  
application conditions.  
The output voltage can be set from 1.235 V to  
35 V. The high current level is also achieved  
thanks to an SO8 package with exposed frame,  
that allows to reduce the Rth(j-amb) down to  
approximately 40 °C/W.  
Zero load current operation  
Internal current limiting  
Inhibit for zero current consumption  
Synchronization  
Protection against feedback disconnection  
Thermal shutdown  
The device uses an internal P-channel D-MOS  
transistor (with a typical Rdson of 250 m) as  
switching element to minimize the size of the  
external components.  
Applications  
Consumer: STB, DVD, TV, VCR, car radio,  
LCD monitors  
An internal oscillator fixes the switching frequency  
at 250 kHz.  
Having a minimum input voltage of 4 V only, it is  
particularly suitable for 5 V bus, available in all  
computer related applications.  
Pulse by pulse current limit with the internal  
frequency modulation offers an effective constant  
current short circuit protection.  
Networking: XDSL, modems, DC-DC modules  
Computer: printers, audio/graphic cards,  
optical storage, hard disk drive  
Industrial: changers, car battery, DC-DC  
converters  
Figure 1.  
Test application circuit  
VREF  
3.3V  
L1 15µH  
VOUT=3.3V  
6
OUT  
FB  
1
VIN = 4V to 35V  
VCC  
D1  
STPS340U  
8
2
R1  
5.6K  
L5973D  
SYNC.  
COMP  
C2  
330µF  
10V  
5
3
7
C1  
10µF  
35V  
4
C4  
22nF  
INH  
GND  
R2  
CERAMIC  
3.3K  
C3  
220pF  
R3  
4.7K  
D03IN1439  
January 2008  
Rev 16  
1/17  
www.st.com  
17  

L5973D013TR 替代型号

型号 品牌 替代类型 描述 数据表
L5972D STMICROELECTRONICS

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