Datasheet > 电源电路 > 线性稳压器IC> LP2950-50LPRE3

LP2950-50LPRE3

更新时间： 2024-11-22 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 PC
页数	文件大小	规格书
26页	2761K
描述
ADJUSTABLE MICROPOWER VOLTAGE REGULATORS WITH SHUTDOWN

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技术参数
数据手册
替代型号

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LP2950-50LPRE3 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	TO-92
包装说明：	TO-92, 3 PIN	针数：	3
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.33.00.01	Factory Lead Time：	1 week
风险等级：	1.12	Samacsys Confidence：	4
Samacsys Status：	Released	Samacsys PartID：	181445
Samacsys Pin Count：	3	Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Other	Samacsys Footprint Name：	LP0003A
Samacsys Released Date：	2019-07-07 20:52:18	Is Samacsys：	N
可调性：	FIXED	最大回动电压 1：	0.6 V
标称回动电压 1：	0.11 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：	5.7 V
JESD-30 代码：	O-PBCY-T3	JESD-609代码：	e3
长度：	4.3 mm	最大电网调整率：	0.02%
最大负载调整率：	0.015%	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
最高工作温度：	125 °C	最低工作温度：	-40 °C
最大输出电流 1：	0.1 A	最大输出电压 1：	5.1 V
最小输出电压 1：	4.9 V	标称输出电压 1：	5 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：	TR
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
调节器类型：	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	座面最大高度：	5.34 mm
子类别：	Other Regulators	表面贴装：	NO
技术：	BIPOLAR	端子面层：	Matte Tin (Sn)
端子形式：	THROUGH-HOLE	端子节距：	1.27 mm
端子位置：	BOTTOM	处于峰值回流温度下的最长时间：	NOT SPECIFIED
最大电压容差：	2%	宽度：	4.3 mm
Base Number Matches：	1

LP2950-50LPRE3 数据手册

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 V_OAccuracy

•

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

OUTPUT

SENSE

FEEDBACK

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 V_TAPpins together, the

LP2951 outputs a fixed 5 V, 3.3 V, or 3 V (depending on the version). Alternatively, by leaving the SENSE and

V_TAPpins 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 V_OUTdrops by 6% of its nominal value for whatever reasons – due to a drop in V_IN, 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.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...26

中文翻译

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LP2950-50LPRE3 替代型号

型号	品牌	替代类型	描述	数据表
LP2950CZ-5.0/NOPB	TI	完全替代	LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators
LP2950ACZ-5.0/NOPB	TI	类似代替	LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators
UA78L05AILPE3	TI	类似代替	POSITIVE-VOLTAGE REGULATORS

与LP2950-50LPRE3相关器件

型号	品牌	获取价格	描述	数据表
LP2950-50-S08-B	UTC	获取价格	100 mA LOW-DROPOUT VOLTAGE REGULATOR
LP2950-50-S08-K	UTC	获取价格	100 mA LOW-DROPOUT VOLTAGE REGULATOR
LP2950-50-S08-R	UTC	获取价格	100 mA LOW-DROPOUT VOLTAGE REGULATOR
LP2950--50-S08-T	UTC	获取价格	Fixed Positive LDO Regulator, 5V, 0.6V Dropout, PDSO8, SOP-8
LP2950-50-S08-T	UTC	获取价格	100 mA LOW-DROPOUT VOLTAGE REGULATOR
LP2950-50-T92-B	UTC	获取价格	100 mA LOW-DROPOUT VOLTAGE REGULATOR
LP2950--50-T92-K	UTC	获取价格	Fixed Positive LDO Regulator, 5V, 0.6V Dropout, TO-92, 3 PIN
LP2950-50-T92-K	UTC	获取价格	100 mA LOW-DROPOUT VOLTAGE REGULATOR
LP2950-50-T92-R	UTC	获取价格	100 mA LOW-DROPOUT VOLTAGE REGULATOR
LP2950-50-T92-T	UTC	获取价格	100 mA LOW-DROPOUT VOLTAGE REGULATOR

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