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LP2951-4.8BM PDF预览

LP2951-4.8BM

更新时间: 2024-11-22 22:09:03
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器
页数 文件大小 规格书
14页 137K
描述
100mA Low-Dropout Voltage Regulator

LP2951-4.8BM 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:SOIC包装说明:SOP, SOP8,.25
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.69可调性:FIXED/ADJUSTABLE
最大回动电压 1:0.6 V标称回动电压 1:0.6 V
最大绝对输入电压:30 VJESD-30 代码:R-PDSO-G8
JESD-609代码:e0长度:4.9 mm
最大电网调整率:0.01455%最大负载调整率:0.0194%
湿度敏感等级:1功能数量:1
输出次数:2端子数量:8
工作温度TJ-Max:125 °C工作温度TJ-Min:-40 °C
最大输出电流 1:0.1 A最大输出电压 1:4.947 V
最小输出电压 1:4.753 V标称输出电压 1:4.85 V
最大输出电压 2:29 V最小输出电压 2:1.24 V
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):240
认证状态:Not Qualified调节器类型:ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度:1.879 mm子类别:Other Regulators
表面贴装:YES技术:BIPOLAR
端子面层:Tin/Lead (Sn/Pb)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最大电压容差:1%
宽度:3.9 mmBase Number Matches:1

LP2951-4.8BM 数据手册

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LP2950/2951  
100mA Low-Dropout Voltage Regulator  
General Description  
Features  
The LP2950 and LP2951 are micropower voltage regulators  
with very low dropout voltage (typically 40mV at light loads  
and 380mV at 100mA), and very low quiescent current (75µA  
typical). The quiescent current of the LP2950/LP2951  
increases only slightly in dropout, thus prolonging battery life.  
This feature, among others, makes the LP2950 and LP2951  
ideally suited for use in battery-powered systems.  
High accuracy 5V, guaranteed 100 mA output  
Extremely low quiescent current  
Low-dropout voltage  
Extremely tight load and line regulation  
Very low temperature coefficient  
Use as regulator or reference  
Needs only 1µF for stability  
Current and thermal limiting  
Available in a 3-Pin TO-92 package, the LP2950 is pin-  
compatible with the older 5V regulators. Additional system  
functions, such as programmable output voltage and logic-  
controlled shutdown, are available in the 8-pin DIP and 8-pin  
SOIC versions of the LP2951.  
LP2951 Versions Only  
Error flag warns of output dropout  
Logic-controlled electronic shutdown  
Output programmable from 1.24 to 29V  
Applications  
3
Automotive Electronics  
Voltage Reference  
Avionics  
Block Diagram and Pin Configurations  
UNREGULATED DC  
5V  
150 mA  
MAX.  
7
8
1
OUTPUT  
+
FEEDBACK  
INPUT  
2
SENSE  
182  
+
6
5V TAP  
5
k  
3
ERROR  
330  
FROM  
AMPLIFIER  
SHUT-  
CMOS  
+
kΩ  
1.5 µF  
DOWN  
60 mV  
+
60  
kΩ  
OR TTL  
+
TO CMOS  
OR TTL  
ERROR  
4
ERROR  
DETECTION  
+
1.23 V  
REF.  
COMPARATOR  
GROUND  
LP2950 and LP2951 Block Diagram  
(Pin Numbers Refer to LP2951)  
1
8
INPUT  
OUTPUT  
SENSE  
3
2
1
2
3
4
7
6
5
FEEDBACK  
SHUTDOWN  
GROUND  
5V TAP  
ERROR  
OUTPUT  
INPUT  
GROUND  
DIP and SO Packages  
(BN and BM)  
TO-92 Plastic Package Bottom View  
(BZ)  
See MIC2950 for a part with 1) higher output (150 mA), 2) transient protection (60V), and 3) reverse input protection to –20V)  
February 1999  
3-35  

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