Datasheet Texas Instruments LP2951 — 数据表

制造商	Texas Instruments
系列	LP2951

数据表

价格

状态

打包

参数化

Parameters / Models	LP2951-30D	LP2951-30DR	LP2951-30DRG4	LP2951-30DRGR	LP2951-33D	LP2951-33DR	LP2951-33DRG4	LP2951-33DRGR	LP2951-50D	LP2951-50DR	LP2951-50DRG4	LP2951-50DRGR	LP2951D	LP2951DR	LP2951DRG4
Accuracy, %	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Fixed Output Options, V	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5	3,3.3,5
Iout(Max), A	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Iq(Typ), mA	0.075	0.075	0.075	0.075	0.075	0.075	0.075	0.075	0.075	0.075	0.075	0.075	0.075	0.075	0.075
Noise, uVrms	160	160	160	160	160	160	160	160	160	160	160	160	160	160	160
Operating Temperature Range, C	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Output Capacitor Type	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic	Non-Ceramic
Output Options	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output	Adjustable Output,Fixed Output
PSRR @ 100KHz, dB	57	57	57	57	57	57	57	57	57	57	57	57	57	57	57
Package Group	SOIC	SOIC	SOIC	SON	SOIC	SOIC	SOIC	SON	SOIC	SOIC	SOIC	SON	SOIC	SOIC	SOIC
Package Size: mm2:W x L, PKG	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	See datasheet (SON)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	See datasheet (SON)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	See datasheet (SON)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Regulated Outputs	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Special Features	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good	Enable,Power Good
Thermal Resistance ОёJA, В°C/W	52	52	52	52	52	52	52	52	52	52	52	52	52	52	52
Vdo(Typ), mV	380	380	380	380	380	380	380	380	380	380	380	380	380	380	380
Vin(Max), V	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
Vin(Min), V	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
Vout(Max), V	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29
Vout(Min), V	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2

生态计划

应用须知

• 下载
  Extending the Input Voltage Range of an LDO Regulator
  PDF, 32 Kb, 档案已发布: Aug 16, 2002
  This application report explains how to use a FET to overcome the input voltage limitation of a linear regulator.
• 下载
  Simple Power Solution Using LDOs for the DM365 (Rev. A)
  PDF, 104 Kb, 修订版: A, 档案已发布: Sep 11, 2009
• 下载
  ESR Stability and the LDO Regulator
  PDF, 83 Kb, 档案已发布: May 7, 2002
  Choosing an output capacitor for LDO regulators with PNP or PMOS pass element can be difficult to specific ESR requirements. This application note explains why higher ESR capacitors are necessary how to chose them and how to determine whether or not the regulator is stable.
• 下载
  3.6V - 5.5V Input LDO with Dual-Level Output Reference Design for MSP430 (Rev. A)
  PDF, 199 Kb, 修订版: A, 档案已发布: Jun 14, 2010
  This reference design is presented to help application designers and others who are trying to use the MSP430 in a system with an input voltage in the range of 3.6 V to 5.5 V and who are also interested in using an easy-to-use low-dropout linear regulator (LDO) for a simple design with extended battery life by putting the MSP430 into a low-power state between operating states.
• 下载
  Techniques for accurate PSRR measurements
  PDF, 1.9 Mb, 档案已发布: Oct 28, 2013
• 下载
  A Topical Index of TI Supply Voltage Supervisor (SVS) Application Notes
  PDF, 56 Kb, 档案已发布: Jun 15, 2015
• 下载
  Low Power 150-mA LDO Linear Regulators. Extended Output Voltage Adjustment Range
  PDF, 41 Kb, 档案已发布: Jun 11, 1999
  The TPS76301 low-dropout (LDO) adjustable linear regulator generates a regulated 1-V output from an input voltage ranging from 3 V to 6 V. The application circuit is based on the application detailed in the TPS76301 data sheet (TI Literature number SLVS181A Figure 21) except for the auxiliary circuit which is shown here in Figure 1.
• 下载
  3.6V - 5.5V Input LDO Reference Design for MSP430 (Rev. A)
  PDF, 110 Kb, 修订版: A, 档案已发布: Jun 14, 2010
  This reference design is presented to help application designers and others who are trying to use the MSP430 in a system with an input voltage in the range of 3.6 V to 5.5 V and who are also interested in using an easy-to-use low-dropout linear regulator (LDO) for a simple design but may not be as concerned about maintaining the highest possible efficiency or longest battery life.
• 下载
  Ceramic Capacitors Replace Tantalum Capacitors in LDOs (Rev. A)
  PDF, 44 Kb, 修订版: A, 档案已发布: Oct 13, 2006
  With the proper considerations ceramic output capacitors can be used with low dropout regulators (LDO) and DC/DC switching converters that require tantulum output capacitors.
• 下载
  AN-1815 LDOs Ease the Stress of Start-Up (Rev. A)
  PDF, 81 Kb, 修订版: A, 档案已发布: Apr 24, 2013
  The LP38851/52/53 devices with soft-start provide a reliable way to ensure that start-up into highcapacitive loads is uneventful and stress free.
• 下载
  Low-Voltage Current Loop Transmitter
  PDF, 519 Kb, 档案已发布: Aug 2, 2007
• 下载
  LDO Performance Near Dropout
  PDF, 149 Kb, 档案已发布: Oct 8, 2010
• 下载
  AN-1950 Silently Powering Low Noise Applications (Rev. A)
  PDF, 10.5 Mb, 修订版: A, 档案已发布: Apr 22, 2013
  This application report explains how to implement a low noise switch mode power supply solution. Itintroduces the sources of noise and explain how to minimize them. A big factor in noise generation andpropagation is the printed circuit board layout. Important basics are discussed. Circuit measurementtechniques are also explained to guide a design engineer towards a low noise but efficient so
• 下载
  Understanding LDO Dropout
  PDF, 52 Kb, 档案已发布: May 9, 2005
  Not all low dropout (LDO) linear regulator data sheets provide the voltage dropout information needed for all applications. This application report shows a designer how to use an LDO data sheet's specified dropout performance to determine the dropout voltage at other operating conditions.
• 下载
  Battery Charging
  PDF, 146 Kb, 档案已发布: Mar 21, 2007
• 下载
  AN-1482 LDO Regulator Stability Using Ceramic Output Capacitors (Rev. A)
  PDF, 169 Kb, 修订版: A, 档案已发布: Apr 25, 2013
  Ultra-low ESR capacitors such as ceramics are highly desirable because they can support fast-changingload transients and also bypass very high frequency noise coming from switching converter powersources which a linear regulator can not reject. However using ultra-low ESR capacitors on the output ofan LDO regulator requires that specific design changes be implemented to ensure loop stabili
• 下载
  AN-1061 Power Conversion in Line-Powered Equipment (Rev. B)
  PDF, 406 Kb, 修订版: B, 档案已发布: Apr 23, 2013
  This application note describes line-powered equipment and power conversion techniques or methods tosolve those typical power needs.
• 下载
  Linear and Switching Voltage Regulator Fundamental Part 1
  PDF, 183 Kb, 档案已发布: Mar 21, 2007
• 下载
  AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B)
  PDF, 684 Kb, 修订版: B, 档案已发布: May 6, 2013
  The purpose of this application report is to aid the user in maximizing the power handling capability of Texas Instruments power packages by using the SOT-223 as an example.
• 下载
  Technical Review of Low Dropout Voltage Regulator Operation And Performance
  PDF, 284 Kb, 档案已发布: Aug 30, 1999
  This application report provides a technical review of low dropout (LDO) voltage regulators and describes fundamental concepts including dropout voltage quiescent current and topologies. The report also includes detailed discussions of load/line regulation efficiency frequency response range of stable ESR and accuracy of LDO voltage regulators.
• 下载
  Fundamental Theory of PMOS LDO Voltage Regulators
  PDF, 66 Kb, 档案已发布: May 7, 1999
  This report presents a fundamental understanding on the theory of low-dropout voltage regulators using a PMOS FET as the pass element to adjust the output current to the load requirements.
• 下载
  Understanding the Terms and Definitions of LDO Voltage Regulators
  PDF, 197 Kb, 档案已发布: Oct 21, 1999
  This report provides an understanding of the terms and definitions of low dropout (LDO) voltage regulators and describes fundamental concepts including dropout voltage quiescent current standby current efficiency transient response line/load regulation power supply rejection output noise voltage accuracy and power dissipation. Each section includes an example to increase the understandab
• 下载
  Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A)
  PDF, 509 Kb, 修订版: A, 档案已发布: Jun 4, 2008
• 下载
  Packaging Limits Range of Linear Regulators
  PDF, 75 Kb, 档案已发布: May 8, 2010
  The power limitations of the physical packaging for a linear regulator device can limit the total output current or the input-to-output voltage differential. This inherent limitation is not always apparent from the product data sheet and must be evaluated during the design phase. This application note shows how the package can limit the operating envelope of a linear regulator.
• 下载
  A Topical Index of TI LDO Application Notes (Rev. F)
  PDF, 82 Kb, 修订版: F, 档案已发布: Jun 27, 2019
• 下载
  LDO PSRR Measurement Simplified (Rev. A)
  PDF, 131 Kb, 修订版: A, 档案已发布: Aug 9, 2017
  This applicationreportexplainsdifferentmethodsof measuringthe PowerSupplyRejectionRatio(PSRR)of a Low-Dropout(LDO)regulatorand includesthe prosand consof thesemeasuringmethods
• 下载
  LDO Noise Demystified (Rev. A)
  PDF, 785 Kb, 修订版: A, 档案已发布: Aug 9, 2017
  Thisapplicationreportexplainsthe differencebetweennoiseand PSRRof an LDO.It also explainsthedifferentwaysnoiseis specifiedin LDOdatasheetsandwhichspecificationshouldbe usedin theapplication.Finallyit explainshow LDOnoiseis reduced.

模型线

制造商分类

• Semiconductors> Power Management> Linear Regulator (LDO)> Single Channel LDO