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LP2951CSDX-3.0 PDF预览

LP2951CSDX-3.0

更新时间： 2024-11-07 21:54:11
品牌 Logo 应用领域
美国国家半导体 - NSC 线性稳压器IC调节器电源电路光电二极管输出元件
页数 文件大小 规格书
26页 1200K
描述
Series of Adjustable Micropower Voltage Regulators

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LP2951CSDX-3.0 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：LLP-8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.33Is Samacsys：N
可调性：FIXED/ADJUSTABLE最大回动电压 1：0.6 V
标称回动电压 1：0.38 V最大绝对输入电压：30 V
JESD-30 代码：S-PDSO-N8JESD-609代码：e0
长度：4 mm最大电网调整率：0.012%
最大负载调整率：0.009%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 1：29 V最小输出电压 1：1.24 V
标称输出电压 1：3 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：HVSON封装等效代码：SOLCC8,.15,32
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
包装方法：TAPE AND REEL认证状态：Not Qualified
调节器类型：FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR座面最大高度：0.8 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：NO LEAD端子节距：0.8 mm
端子位置：DUAL最大电压容差：2.4%
宽度：4 mmBase Number Matches：1

LP2951CSDX-3.0 数据手册

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May 2005  
LP2950/LP2951  
Series of Adjustable Micropower Voltage Regulators  
(.05% typ.) and a very low output voltage temperature coef-  
ficient, making the part useful as a low-power voltage refer-  
ence.  
General Description  
The LP2950 and LP2951 are micropower voltage regulators  
with very low quiescent current (75µA typ.) and very low  
dropout voltage (typ. 40mV at light loads and 380mV at  
100mA). They are ideally suited for use in battery-powered  
systems. Furthermore, the quiescent current of the LP2950/  
LP2951 increases only slightly in dropout, prolonging battery  
life.  
Features  
n 5V, 3V, and 3.3V versions available  
n High accuracy output voltage  
n Guaranteed 100mA output current  
n Extremely low quiescent current  
n Low dropout voltage  
n Extremely tight load and line regulation  
n Very low temperature coefficient  
n Use as Regulator or Reference  
n Needs minimum capacitance for stability  
n Current and Thermal Limiting  
n Stable with low-ESR output capacitors (10mΩ to 6Ω)  
The LP2950-5.0 is available in the surface-mount D-Pak  
package, and in the popular 3-pin TO-92 package for pin-  
compatibility with older 5V regulators. The 8-lead LP2951 is  
available in plastic, ceramic dual-in-line, LLP, or metal can  
packages and offers additional system functions.  
One such feature is an error flag output which warns of a low  
output voltage, often due to falling batteries on the input. It  
may be used for a power-on reset. A second feature is the  
logic-compatible shutdown input which enables the regulator  
to be switched on and off. Also, the part may be pin-strapped  
for a 5V, 3V, or 3.3V output (depending on the version), or  
programmed from 1.24V to 29V with an external pair of  
resistors.  
LP2951 versions only  
n Error flag warns of output dropout  
n Logic-controlled electronic shutdown  
n Output programmable from 1.24 to 29V  
Careful design of the LP2950/LP2951 has minimized all  
contributions to the error budget. This includes a tight initial  
tolerance (.5% typ.), extremely good load and line regulation  
Block Diagram and Typical Applications  
LP2950  
LP2951  
00854625  
00854601  
© 2005 National Semiconductor Corporation  
DS008546  
www.national.com  
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