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LP2950-33LP PDF预览

LP2950-33LP

更新时间： 2024-11-23 05:00:03
品牌 Logo 应用领域
德州仪器 - TI 线性稳压器IC调节器电源电路输出元件
页数 文件大小 规格书
26页 2761K
描述
ADJUSTABLE MICROPOWER VOLTAGE REGULATORS WITH SHUTDOWN

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LP2950-33LP 技术参数

生命周期：Obsolete零件包装代码：TO-92
包装说明：TO-92, SIP3,.1,50针数：3
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.11
Is Samacsys：N可调性：FIXED
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最大输入电压：30 V
最小输入电压：3.966 VJESD-30 代码：O-PBCY-W3
最大电网调整率：0.0132%最大负载调整率：0.0099%
功能数量：1输出次数：1
端子数量：3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 1：3.366 V最小输出电压 1：3.234 V
标称输出电压 1：3.3 V封装主体材料：PLASTIC/EPOXY
封装代码：TO-92封装等效代码：SIP3,.1,50
封装形状：ROUND封装形式：CYLINDRICAL
包装方法：BULK PACK认证状态：Not Qualified
调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR子类别：Other Regulators
表面贴装：NO技术：BIPOLAR
端子形式：WIRE端子节距：1.27 mm
端子位置：BOTTOM最大电压容差：2%
Base Number Matches：1

LP2950-33LP 数据手册

 浏览型号LP2950-33LP的Datasheet PDF文件第2页浏览型号LP2950-33LP的Datasheet PDF文件第3页浏览型号LP2950-33LP的Datasheet PDF文件第4页浏览型号LP2950-33LP的Datasheet PDF文件第5页浏览型号LP2950-33LP的Datasheet PDF文件第6页浏览型号LP2950-33LP的Datasheet PDF文件第7页 
LP2950, LP2951  
ADJUSTABLE MICROPOWER VOLTAGE REGULATORS  
WITH SHUTDOWN  
www.ti.com  
SLVS582D–APRIL 2006–REVISED MARCH 2007  
FEATURES  
•
•
•
•
•
•
•
Wide Input Range…up to 30 V  
Rated Output Current of 100 mA  
Low Dropout…380 mV (Typ) at 100 mA  
Low Quiescent Current…75 µA (Typ)  
Tight Line Regulation…0.03% (Typ)  
Tight Load Regulation…0.04% (Typ)  
High VO Accuracy  
•
•
•
Stable With Low ESR (>12 mΩ) Capacitors  
Current- and Thermal-Limiting Features  
LP2950 Only (3-Pin Package)  
–
Fixed-Output Voltages of 5 V, 3.3 V,  
and 3 V  
•
LP2951 Only (8-Pin Package)  
–
Fixed- or Adjustable-Output Voltages:  
5 V/ADJ, 3.3 V/ADJ, and 3 V/ADJ  
–
–
1.4% at 25°C  
–
–
–
Low-Voltage Error Signal on Falling Output  
Shutdown Capability  
2% Over Temperature  
•
Can Be Used as a Regulator or Reference  
Remote Sense Capability for Optimal  
Output Regulation and Accuracy  
LP2950...LP (TO-226/TO-92 PACKAGE  
(BOTTOM VIEW)  
LP2951...D (SOIC) PACKAGE  
(TOP VIEW)  
OUTPUT  
GND  
INPUT  
1
2
3
4
8
7
6
5
OUTPUT  
SENSE  
FEEDBACK  
V
TAP  
SHUTDOWN  
GND  
INPUT  
ERROR  
DESCRIPTION/ORDERING INFORMATION  
The LP2950 and LP2951 devices are bipolar, low-dropout voltage regulators that can accommodate a wide input  
supply-voltage range of up to 30 V. The easy-to-use, 3-pin LP2950 is available in fixed-output voltages of 5 V,  
3.3 V, and 3 V. However, the 8-pin LP2951 is able to output either a fixed or adjustable output from the same  
device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the  
LP2951 outputs a fixed 5 V, 3.3 V, or 3 V (depending on the version). Alternatively, by leaving the SENSE and  
VTAP pins open and connecting FEEDBACK to an external resistor divider, the output can be set to any value  
between 1.235 V to 30 V.  
The 8-pin LP2951 also offers additional functionality that makes it particularly suitable for battery-powered  
applications. For example, a logic-compatible shutdown feature allows the regulator to be put in standby mode  
for power savings. In addition, there is a built-in supervisor reset function in which the ERROR output goes low  
when VOUT drops by 6% of its nominal value for whatever reasons – due to a drop in VIN, current limiting, or  
thermal shutdown.  
The LP2950 and LP2951 are designed to minimize all error contributions to the output voltage. With a tight  
output tolerance (0.5% at 25°C), a very low output voltage temperature coefficient (20 ppm typical), extremely  
good line and load regulation (0.3% and 0.4% typical), and remote sensing capability, the parts can be used as  
either low-power voltage references or 100-mA regulators.  
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2006–2007, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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