Datasheet Texas Instruments LM317 — 数据表

制造商	Texas Instruments
系列	LM317

数据表

价格

状态

打包

参数化

Parameters / Models	LM317DCY	LM317DCYG3	LM317DCYR	LM317DCYRG3	LM317KC	LM317KCE3	LM317KCS	LM317KCSE3	LM317KCT	LM317KTER	LM317KTTR	LM317KTTRG3
Accuracy, %	5	5	5	5			5	5	5		5	5
Accuracy(%)					4	4				4
Additional Features					Overcurrent Protection Thermal Shutdown	Overcurrent Protection Thermal Shutdown				Overcurrent Protection Thermal Shutdown
Approx. Price (US$)					0.18 | 1ku	0.18 | 1ku				0.18 | 1ku
Features	N/A	N/A	N/A	N/A			N/A	N/A	N/A		N/A	N/A
Iout(Max), A	1.5	1.5	1.5	1.5			1.5	1.5	1.5		1.5	1.5
Iout(Max)(A)					1.5	1.5				1.5
Iq(Typ), mA	3.5	3.5	3.5	3.5			3.5	3.5	3.5		3.5	3.5
Iq(Typ)(mA)					3.5	3.5				3.5
Noise, uVrms	38	38	38	38			38	38	38		38	38
Noise(uVrms)					1110	1110				1110
Operating Temperature Range, C	0 to 125	0 to 125	0 to 125	0 to 125			0 to 125	0 to 125	0 to 125		0 to 125	0 to 125
Operating Temperature Range(C)					0 to 125	0 to 125				0 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
Output Options	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output Programmable Output	Adjustable Output Programmable Output	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output Programmable Output	Adjustable Output	Adjustable Output
PSRR @ 100KHz, dB	38	38	38	38			38	38	38		38	38
PSRR @ 100KHz(dB)					38	38				38
Package Group	SOT-223	SOT-223	SOT-223	SOT-223	TO-220	TO-220	TO-220	TO-220	TO-220	DDPAK/TO-263 PFM SOT-223 TO-220	DDPAK/TO-263	DDPAK/TO-263
Package Size: mm2:W x L, PKG	4SOT-223: 46 mm2: 7 x 6.5(SOT-223)	4SOT-223: 46 mm2: 7 x 6.5(SOT-223)	4SOT-223: 46 mm2: 7 x 6.5(SOT-223)	4SOT-223: 46 mm2: 7 x 6.5(SOT-223)			See datasheet (TO-220)	See datasheet (TO-220)	See datasheet (TO-220)		3DDPAK/TO-263: 155 mm2: 15.24 x 10.16(DDPAK/TO-263)	3DDPAK/TO-263: 155 mm2: 15.24 x 10.16(DDPAK/TO-263)
Package Size: mm2:W x L (PKG)					See datasheet (TO-220)	See datasheet (TO-220)				See datasheet (TO-220) See datasheet (PFM)
Powered Load					FPGA Microcontroller Microprocessor	FPGA Microcontroller Microprocessor				FPGA Microcontroller Microprocessor
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Regulated Outputs	1	1	1	1			1	1	1		1	1
Regulated Outputs(#)					1	1				1
Thermal Resistance ОёJA, В°C/W	24	24	24	24			24	24	24		24	24
Vdo(Typ), mV	2000	2000	2000	2000			2000	2000	2000		2000	2000
Vdo(Typ)(mV)					2000	2000				2000
Vin(Max), V	40	40	40	40			40	40	40		40	40
Vin(Max)(V)					40	40				40
Vin(Min), V	3	3	3	3			3	3	3		3	3
Vin(Min)(V)					3	3				3
Vout(Max), V	37	37	37	37			37	37	37		37	37
Vout(Max)(V)					37	37				37
Vout(Min), V	1.25	1.25	1.25	1.25			1.25	1.25	1.25		1.25	1.25
Vout(Min)(V)					1.25	1.25				1.25

生态计划

应用须知

• 下载
  AN-178 Applications for an Adjustable IC Power Regulator (Rev. B)
  PDF, 219 Kb, 修订版: B, 档案已发布: May 5, 2013
  This application report provides applications for the Texas Instruments LM117 3-terminal adjustableregulator.
• 下载
  High Stability Regulators
  PDF, 104 Kb, 档案已发布: Oct 3, 2002
• 下载
  AN-42 IC Provides On-Card Regulation for Logic Circuits (Rev. B)
  PDF, 593 Kb, 修订版: B, 档案已发布: May 6, 2013
  This application report provides on-card regulation for logic circuits.
• 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
  Adjustable 3-Terminal Regulator for Low-Cost Battery Charging Systems
  PDF, 104 Kb, 档案已发布: Oct 3, 2002
• 下载
  High-Efficiency Reg has Low Drop-Out Voltage (Rev. B)
  PDF, 60 Kb, 修订版: B, 档案已发布: Apr 23, 2013
  Conventional regulators have a high drop-out voltage that is a function of the total output current.However with just a regulator chip an external transistor and a few passive components this designforms a high output current regulator with a limited input voltage and high efficiency. The circuit presentedhas a drop-out of 0.7V at 5A load current and 1.3V at a current level of as high as
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  A New Production Technique for Trimming Voltage Regulators
  PDF, 105 Kb, 档案已发布: Oct 3, 2002
• 下载
  AB-12 Wide Adjustable Range PNP Voltage Regulator (Rev. B)
  PDF, 47 Kb, 修订版: B, 档案已发布: May 6, 2013
  This application note discusses the PNP voltage regulator.
• 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
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  LDO Performance Near Dropout
  PDF, 149 Kb, 档案已发布: Oct 8, 2010
• 下载
  Linear power for automated industrial systems
  PDF, 1.8 Mb, 档案已发布: Jan 9, 2015
  Designing a robust power management system for industrial automated equipment requires thorough understanding of the surroundings and conditions that affect the functionality. During the past few decades industrial and factory automation systems have become more robust intelligent and connected which has drastically increased the footprint for semiconductor components. This change has created a
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  AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B)
  PDF, 82 Kb, 修订版: B, 档案已发布: May 5, 2013
  This application report discusses improving power supply reliability with IC power regulators.
• 下载
  AN-181 3-Terminal Regulator is Adjustable (Rev. B)
  PDF, 314 Kb, 修订版: B, 档案已发布: May 5, 2013
  Until now all of the 3-terminal power IC voltage regulators have a fixed output voltage. In spite of this limitation their ease of use low cost and full on-chip overload protection have generated wide acceptance. Now with the introduction of the LM117 it is possible to use a single regulator for any output voltage from 1.2 V to 37 V at 1.5A. Selecting close-tolerance outp
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  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
  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
  Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A)
  PDF, 284 Kb, 修订版: A, 档案已发布: May 5, 2013
  When working with voltage regulator circuits the designer is often confronted with the need to calculatethe tolerance of the regulated output voltage. For fixed voltage regulators this problem is easily managedbecause the required information is directly supplied on the semiconductor manufacturer's data sheet.
• 下载
  AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B)
  PDF, 300 Kb, 修订版: B, 档案已发布: May 6, 2013
  This application note discusses the operation and compensation of linear regulators.
• 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.

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• Semiconductors > Analog and Mixed-Signal > Power Management > Linear Regulator (LDO) > Single Channel LDO