Datasheet Texas Instruments TL497A

Manufacturer	Texas Instruments
Series	TL497A

500-mA Peak Step-Up, Step-Down, Inverting Switching Voltage Regulator

Datasheets

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PDF, 777 Kb, Revision: F, File published: Feb 22, 2005

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Prices

Status

	TL497ACD	TL497ACDG4	TL497ACDR	TL497ACDRE4	TL497ACN	TL497ACNE4	TL497ACNSLE	TL497ACNSR	TL497ACPWR	TL497AID	TL497AIDG4	TL497AIDR	TL497AIJ	TL497AIN
Lifecycle Status	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Obsolete (Manufacturer has discontinued the production of the device)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Obsolete (Manufacturer has discontinued the production of the device)	Active (Recommended for new designs)
Manufacture's Sample Availability	No	No	No	No	No	No	No	No	No	No	No	No	No	No

Packaging

	TL497ACD	TL497ACDG4	TL497ACDR	TL497ACDRE4	TL497ACN	TL497ACNE4	TL497ACNSLE	TL497ACNSR	TL497ACPWR	TL497AID	TL497AIDG4	TL497AIDR	TL497AIJ	TL497AIN
N	1	2	3	4	5	6	7	8	9	10	11	12	13	14
Pin	14	14	14	14	14	14	14	14	14	14	14	14	14	14
Package Type	D	D	D	D	N	N	NS	NS	PW	D	D	D	J	N
Industry STD Term	SOIC	SOIC	SOIC	SOIC	PDIP	PDIP	SOP	SOP	TSSOP	SOIC	SOIC	SOIC	CDIP	PDIP
JEDEC Code	R-PDSO-G	R-PDSO-G	R-PDSO-G	R-PDSO-G	R-PDIP-T	R-PDIP-T	R-PDSO-G	R-PDSO-G	R-PDSO-G	R-PDSO-G	R-PDSO-G	R-PDSO-G	R-GDIP-T	R-PDIP-T
Package QTY	50	50	2500	2500	25	25		2000	2000	50	50	2500		25
Carrier	TUBE	TUBE	LARGE T&R	LARGE T&R	TUBE	TUBE		LARGE T&R	LARGE T&R	TUBE	TUBE	LARGE T&R		TUBE
Device Marking	TL497AC	TL497AC	TL497AC	TL497AC	TL497ACN	TL497ACN		TL497A	T497A	TL497AI	TL497AI	TL497AI		TL497AIN
Width (mm)	3.91	3.91	3.91	3.91	6.35	6.35	5.3	5.3	4.4	3.91	3.91	3.91	6.67	6.35
Length (mm)	8.65	8.65	8.65	8.65	19.3	19.3	10.3	10.3	5	8.65	8.65	8.65	19.56	19.3
Thickness (mm)	1.58	1.58	1.58	1.58	3.9	3.9	1.95	1.95	1	1.58	1.58	1.58	4.57	3.9
Pitch (mm)	1.27	1.27	1.27	1.27	2.54	2.54	1.27	1.27	.65	1.27	1.27	1.27	2.54	2.54
Max Height (mm)	1.75	1.75	1.75	1.75	5.08	5.08	2	2	1.2	1.75	1.75	1.75	5.08	5.08
Mechanical Data	Download	Download	Download	Download	Download	Download	Download	Download	Download	Download	Download	Download	Download	Download

Parametrics

Parameters / Models	TL497ACD	TL497ACDG4	TL497ACDR	TL497ACDRE4	TL497ACN	TL497ACNE4	TL497ACNSLE	TL497ACNSR	TL497ACPWR	TL497AID	TL497AIDG4	TL497AIDR	TL497AIJ	TL497AIN
Approx. Price (US$)							0.57 \| 1ku						0.57 \| 1ku
Iq(Typ), mA	11	11	11	11	11	11		11	11	11	11	11		11
Iq(Typ)(mA)							11						11
Operating Temperature Range, C	-40 to 85,0 to 70	-40 to 85,0 to 70	-40 to 85,0 to 70	-40 to 85,0 to 70	-40 to 85,0 to 70	-40 to 85,0 to 70		-40 to 85,0 to 70	-40 to 85,0 to 70	-40 to 85,0 to 70	-40 to 85,0 to 70	-40 to 85,0 to 70		-40 to 85,0 to 70
Operating Temperature Range(C)							-40 to 85 0 to 70						-40 to 85 0 to 70
Package Group	SOIC	SOIC	SOIC	SOIC	PDIP	PDIP	SO	SO	TSSOP	SOIC	SOIC	SOIC	PDIP SO SOIC TSSOP	PDIP
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Special Features	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable
Switch Current Limit(Min), A	0.5	0.5	0.5	0.5	0.5	0.5		0.5	0.5	0.5	0.5	0.5		0.5
Switch Current Limit(Min)(A)							0.5						0.5
Switch Current Limit(Typ), A	0.5	0.5	0.5	0.5	0.5	0.5		0.5	0.5	0.5	0.5	0.5		0.5
Switch Current Limit(Typ)(A)							0.5						0.5
Switching Frequency(Max), kHz	50	50	50	50	50	50		50	50	50	50	50		50
Switching Frequency(Max)(kHz)							50						50
Topology	Boost,Buck,Flyback,Forward,Inverting,SEPIC	Boost,Buck,Flyback,Forward,Inverting,SEPIC	Boost,Buck,Flyback,Forward,Inverting,SEPIC	Boost,Buck,Flyback,Forward,Inverting,SEPIC	Boost,Buck,Flyback,Forward,Inverting,SEPIC	Boost,Buck,Flyback,Forward,Inverting,SEPIC	Inverting	Boost,Buck,Flyback,Forward,Inverting,SEPIC	Boost,Buck,Flyback,Forward,Inverting,SEPIC	Boost,Buck,Flyback,Forward,Inverting,SEPIC	Boost,Buck,Flyback,Forward,Inverting,SEPIC	Boost,Buck,Flyback,Forward,Inverting,SEPIC	Inverting	Boost,Buck,Flyback,Forward,Inverting,SEPIC
Type	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter
Vin(Max), V	12	12	12	12	12	12		12	12	12	12	12		12
Vin(Max)(V)							12						12
Vin(Min), V	4.5	4.5	4.5	4.5	4.5	4.5		4.5	4.5	4.5	4.5	4.5		4.5
Vin(Min)(V)							4.5						4.5
Vout(Max), V	30	30	30	30	30	30		30	30	30	30	30		30
Vout(Max)(V)							30						30
Vout(Min), V	-25	-25	-25	-25	-25	-25		-25	-25	-25	-25	-25		-25
Vout(Min)(V)							-25						-25

Eco Plan

	TL497ACD	TL497ACDG4	TL497ACDR	TL497ACDRE4	TL497ACN	TL497ACNE4	TL497ACNSLE	TL497ACNSR	TL497ACPWR	TL497AID	TL497AIDG4	TL497AIDR	TL497AIJ	TL497AIN
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Not Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Not Compliant	Compliant
Pb Free	Yes	No	No	Yes	Yes

Application Notes

Download
Designing Switching Voltage Regulators with TL497A
PDF, 945 Kb, File published: Aug 11, 2003
Switching voltage regulators, represented by the TL497, can achieve high-efficiency power conversion at large input/output voltage differentials. The TL497A eliminates complex circuit designs previously required and provides greater efficiency than systems using series pass regulators. The principle of operation is discussed, and practical design exercises for step-down, step-up, and inverting reg
Download
Understanding Buck Power Stages In Switchmode Power Supplies
PDF, 173 Kb, File published: Mar 4, 1999
A switching power supply consists of the power stage and the control circuit. The power stage performs the basic power conversion from the input voltage to the output voltage and includes switches and the output filter. This report addresses the buck power stage only and does not cover control circuits. Detailed steady-state and small-signal analysis of the buck power stage operating in continuous
Download
Understanding Boost Power Stages In Switchmode Power Supplies
PDF, 149 Kb, File published: Mar 4, 1999
A switching power supply consists of the power stage and the control circuit. The power stage performs the basic power conversion from the input voltage to the output voltage and includes switches and the output filter. This report addresses the boost power stage only and does not cover control circuits. The report includes detailed steady-stage and small-signal analysis of the boost power stage o
Download
Understanding Buck-Boost Power Stages in Switchmode Power Supplies (Rev. A)
PDF, 363 Kb, Revision: A, File published: May 28, 2002

Model Line

Series: TL497A (14)

TL497ACD TL497ACDG4 TL497ACDR TL497ACDRE4 TL497ACN TL497ACNE4 TL497ACNSLE TL497ACNSR TL497ACPWR TL497AID TL497AIDG4 TL497AIDR TL497AIJ TL497AIN

Manufacturer's Classification

Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Buck/Boost, Inverting or Split-Rail> Buck/Boost, Inverting or Split-Rail Converter (Integrated Switch)