Datasheet Texas Instruments LM317A

Manufacturer	Texas Instruments
Series	LM317A

Datasheets

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Status

Packaging

Parametrics

Parameters / Models	LM317AEMP	LM317AEMP/NOPB	LM317AEMPX	LM317AEMPX/NOPB	LM317AH	LM317AH/NOPB	LM317AMDT	LM317AMDT/NOPB	LM317AMDTX	LM317AMDTX/NOPB	LM317AT	LM317AT/NOPB
Accuracy, %	5	5	5	5	5		5	5	5	5	5	5
Accuracy(%)						4
Approx. Price (US$)						0.61 | 1ku
Features	N/A	N/A	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	1.5	1.5
Iout(Max)(A)						1.5
Iq(Typ), mA	0.05	0.05	0.05	0.05	0.05		0.05	0.05	0.05	0.05	0.05	0.05
Iq(Typ)(mA)						0.05
Noise, uVrms	38	38	38	38	38		38	38	38	38	38	38
Noise(uVrms)						38
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
Operating Temperature Range(C)						-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
Output Options	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output	Adjustable Output
PSRR @ 100KHz, dB	40	40	40	40	40		40	40	40	40	40	40
PSRR @ 100KHz(dB)						40
Package Group	SOT-223	SOT-223	SOT-223	SOT-223	TO	TO	TO-252	TO-252	TO-252	TO-252	TO-220	TO-220
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)	3TO: 92 mm2: 9.14 x 10.03(TO)		3TO-252: 40 mm2: 6.1 x 6.58(TO-252)	3TO-252: 40 mm2: 6.1 x 6.58(TO-252)	3TO-252: 40 mm2: 6.1 x 6.58(TO-252)	3TO-252: 40 mm2: 6.1 x 6.58(TO-252)	See datasheet (TO-220)	See datasheet (TO-220)
Package Size: mm2:W x L (PKG)						See datasheet (TO-220)
Rating	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
Regulated Outputs(#)						1
Special Features						N/A
Thermal Resistance ОёJA, В°C/W	24	24	24	24	24		24	24	24	24	24	24
Thermal Resistance ОёJA(В°C/W)						24
Vdo(Typ), mV	2250	2250	2250	2250	2250		2250	2250	2250	2250	2250	2250
Vdo(Typ)(mV)						2250
Vin(Max), V	40	40	40	40	40		40	40	40	40	40	40
Vin(Max)(V)						40
Vin(Min), V	4.2	4.2	4.2	4.2	4.2		4.2	4.2	4.2	4.2	4.2	4.2
Vin(Min)(V)						4.2
Vout(Max), V	37	37	37	37	37		37	37	37	37	37	37
Vout(Max)(V)						37
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
Vout(Min)(V)						1.2

Eco Plan

Application Notes

• Download
  Adjustable 3-Terminal Regulator for Low-Cost Battery Charging Systems
  PDF, 104 Kb, File published: Oct 3, 2002
• Download
  AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B)
  PDF, 82 Kb, Revision: B, File published: May 5, 2013
  This application report discusses improving power supply reliability with IC power regulators.
• Download
  AN-181 3-Terminal Regulator is Adjustable (Rev. B)
  PDF, 314 Kb, Revision: B, File published: 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
• Download
  AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B)
  PDF, 684 Kb, Revision: B, File published: 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.
• Download
  Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A)
  PDF, 284 Kb, Revision: A, File published: 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.
• Download
  AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A)
  PDF, 814 Kb, Revision: A, File published: May 6, 2013
  The LM340-XX are three terminal 1.0A positive voltage regulators with preset output voltages of 5.0V or15V. The LM340 regulators are complete 3-terminal regulators requiring no external components fornormal operation. However by adding a few parts one may improve the transient response provide for avariable output voltage or increase the output current. Included on the chip are all of t
• Download
  AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B)
  PDF, 300 Kb, Revision: B, File published: May 6, 2013
  This application note discusses the operation and compensation of linear regulators.
• Download
  Understanding the Terms and Definitions of LDO Voltage Regulators
  PDF, 197 Kb, File published: 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
• Download
  Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A)
  PDF, 509 Kb, Revision: A, File published: Jun 4, 2008
• Download
  Packaging Limits Range of Linear Regulators
  PDF, 75 Kb, File published: 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.
• Download
  A Topical Index of TI LDO Application Notes (Rev. F)
  PDF, 82 Kb, Revision: F, File published: Jun 27, 2019

Model Line

Manufacturer's Classification

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