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L5970D PDF预览

L5970D

更新时间: 2024-11-27 22:31:47
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
10页 140K
描述
UP TO 1A STEP DOWN SWITCHING REGULATOR

L5970D 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:SOP-8
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:10 weeks风险等级:0.85
Samacsys Confidence:3Samacsys Status:Released
Samacsys PartID:5574Samacsys Pin Count:8
Samacsys Part Category:Integrated CircuitSamacsys Package Category:Small Outline Packages
Samacsys Footprint Name:SO8Samacsys Released Date:2015-04-16 09:48:08
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE控制技术:PULSE FREQUENCY MODULATION
最大输入电压:36 V最小输入电压:4.4 V
标称输入电压:12 VJESD-30 代码:R-PDSO-G8
JESD-609代码:e4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:2.25 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):260
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:BUCK最大切换频率:280 kHz
技术:MOS温度等级:AUTOMOTIVE
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)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 mm
Base Number Matches:1

L5970D 数据手册

 浏览型号L5970D的Datasheet PDF文件第2页浏览型号L5970D的Datasheet PDF文件第3页浏览型号L5970D的Datasheet PDF文件第4页浏览型号L5970D的Datasheet PDF文件第5页浏览型号L5970D的Datasheet PDF文件第6页浏览型号L5970D的Datasheet PDF文件第7页 
L5970D  
UP TO 1A STEP DOWN SWITCHING REGULATOR  
UP TO 1A OUTPUT CURRENT  
OPERATING INPUT VOLTAGE FROM 4.4V  
TO 36V  
3.3V / (±2%) / REFERENCE VOLTAGE  
OUTPUT VOLTAGE ADJUSTABLE FROM  
1.2V TO 35V  
LOW DROPOUT OPERATION: 100% DUTY  
CYCLE  
SO8  
ORDERING NUMBERS: L5970D (SO8)  
250KHz INTERNALLY FIXED FREQUENCY  
VOLTAGE FEEDFORWARD  
ZERO LOAD CURRENT OPERATION  
INTERNAL CURRENT LIMITING  
INHIBIT FOR ZERO CURRENT  
CONSUMPTION  
SINCHRONIZATION  
PROTECTION AGAINST FEEDBACK  
DISCONNECTION  
L5970D013TR (T&R)  
DESCRIPTION  
The L5970D is a step down monolithic power  
switching regulator capable to deliver up to 1A at  
output voltages from 1.2V to 35V.  
THERMAL SHUTDOWN  
The device uses an internal P-Channel D-MOS  
transistor (with a typical Rdson of 250m) as  
switching element to minimize the size of the ex-  
ternal components.  
APPLICATIONS:  
CONSUMER: STB, DVD, TV, VCR,CAR  
RADIO, LCD MONITORS  
NETWORKING: XDSL, MODEMS,DC-DC  
MODULES  
COMPUTER: PRINTERS, AUDIO/GRAPHIC  
CARDS, OPTICAL STORAGE, HARD DISK  
DRIVE  
INDUSTRIAL: CHARGERS, CAR BATTERY  
DC-DC CONVERTERS  
An internal oscillator fixes the switching frequency  
at 250KHz.  
Having a minimum input voltage of 4.4V only, it is  
particularly suitable for 5V bus, available in all  
computer related applications.  
Pulse by pulse current limit with the internal fre-  
quency modulation offers an effective constant  
current short circuit protection.  
TEST APPLICATION CIRCUIT  
VREF  
L1 33µH  
3.3V  
VOUT=3.3V  
6
OUT  
FB  
1
5
VIN = 4.4V to 35V  
VCC  
D1  
8
2
R1  
5.6K  
L5970D  
STPS2L40U  
SYNC.  
COMP  
C2  
100µF  
10V  
C1  
10µF  
35V  
3
7
4
C4  
22nF  
INH.  
GND  
R2  
3.3K  
CERAMIC  
C3  
220pF  
R3  
4.7K  
D98IN954C  
May 2003  
1/10  

L5970D 替代型号

型号 品牌 替代类型 描述 数据表
L5970D013TR STMICROELECTRONICS

完全替代

UP TO 1A STEP DOWN SWITCHING REGULATOR
L5972D STMICROELECTRONICS

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2A SWITCH STEP DOWN SWITCHING REGULATOR
L5972D013TR STMICROELECTRONICS

类似代替

2A SWITCH STEP DOWN SWITCHING REGULATOR

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