Datasheet Texas Instruments LM2673 — Ficha de datos

Fabricante	Texas Instruments
Serie	LM2673

Hojas de datos

Precios

Estado

Embalaje

Paramétricos

Parameters / Models	LM2673S-12	LM2673S-12/NOPB	LM2673S-3.3	LM2673S-3.3/NOPB	LM2673S-5.0	LM2673S-5.0/NOPB	LM2673S-ADJ	LM2673S-ADJ/NOPB	LM2673SD-12/NOPB	LM2673SD-3.3/NOPB	LM2673SD-5.0/NOPB	LM2673SD-ADJ/NOPB	LM2673SDX-3.3/NOPB	LM2673SDX-5.0/NOPB	LM2673SDX-ADJ/NOPB	LM2673SX-12/NOPB	LM2673SX-3.3/NOPB	LM2673SX-5.0	LM2673SX-5.0/NOPB	LM2673SX-ADJ	LM2673SX-ADJ/NOPB	LM2673T-12/NOPB	LM2673T-3.3/NOPB	LM2673T-5.0/NOPB	LM2673T-ADJ	LM2673T-ADJ/NOPB
Approx. Price (US$)																		1.85 | 1ku					1.85 | 1ku
Control Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode	Voltage Mode
Duty Cycle(Max), %	91	91	91	91	91	91	91	91	91	91	91	91	91	91	91	91	91		91	91	91	91		91	91	91
Duty Cycle(Max)(%)																		91					91
Iout(Max), A	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3		3	3	3	3		3	3	3
Iout(Max)(A)																		3					3
Iq(Typ), mA	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2		4.2	4.2	4.2	4.2		4.2	4.2	4.2
Iq(Typ)(mA)																		4.2					4.2
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	-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					-40 to 125
Package Group	DDPAK/TO-263	DDPAK/TO-263	DDPAK/TO-263	DDPAK/TO-263	DDPAK/TO-263	DDPAK/TO-263	DDPAK/TO-263	DDPAK/TO-263	VSON	VSON	VSON	VSON	VSON	VSON	VSON	DDPAK/TO-263	DDPAK/TO-263	DDPAK/TO-263	DDPAK/TO-263	DDPAK/TO-263	DDPAK/TO-263	TO-220	TO-220	TO-220	TO-220	TO-220
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	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	1	1		1	1	1	1		1	1	1
Regulated Outputs(#)																		1					1
Special Features	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable	Enable
Switching Frequency(Max), kHz	260	260	260	260	260	260	260	260	260	260	260	260	260	260	260	260	260		260	260	260	260		260	260	260
Switching Frequency(Max)(kHz)																		260					260
Switching Frequency(Min), kHz	260	260	260	260	260	260	260	260	260	260	260	260	260	260	260	260	260		260	260	260	260		260	260	260
Switching Frequency(Min)(kHz)																		260					260
Type	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter	Converter
Vin(Max), V	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40		40	40	40	40		40	40	40
Vin(Max)(V)																		40					40
Vin(Min), V	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8		8	8	8	8		8	8	8
Vin(Min)(V)																		8					8
Vout(Max), V	37	37	37	37	37	37	37	37	37	37	37	37	37	37	37	37	37		37	37	37	37		37	37	37
Vout(Max)(V)																		37					37
Vout(Min), V	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23	1.23		1.23	1.23	1.23	1.23		1.23	1.23	1.23
Vout(Min)(V)																		1.23					1.23

Plan ecológico

Notas de aplicación

• Descargar
  AN-643 EMI/RFI Board Design (Rev. B)
  PDF, 742 Kb, Revisión: B, Archivo publicado: mayo 3, 2004
  Application Note 643 EMI/RFI Board Design
• Descargar
  AN-1187 Leadless Leadframe Package (LLP) (Rev. R)
  PDF, 21.3 Mb, Revisión: R, Archivo publicado: mayo 7, 2013
  This application report discusses the Leadless Leadframe Package (LLP).
• Descargar
  Input and Output Capacitor Selection
  PDF, 219 Kb, Archivo publicado: sept 19, 2005
• Descargar
  AN-1197 Selecting Inductors for Buck Converters (Rev. B)
  PDF, 558 Kb, Revisión: B, Archivo publicado: abr 23, 2013
  This application report provides design information to help select an off-the-shelf inductor for anycontinuous-mode buck converter application.
• Descargar
  AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)
  PDF, 3.6 Mb, Revisión: A, Archivo publicado: abr 23, 2013
  This application note will explore how the layout of your DC/DC power supply can significantly affect theamount of EMI that it produces. It will discuss several variations of a layout analyze the results andprovide answers to some common EMI questions such whether or not to use a shielded inductor.
• Descargar
  AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)
  PDF, 1.4 Mb, Revisión: A, Archivo publicado: abr 23, 2013
  This application note provides thermal power analysis techniques for analyzing the power IC.
• Descargar
  AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)
  PDF, 2.7 Mb, Revisión: A, Archivo publicado: abr 23, 2013
  This application report shows how to measure the critical points of a bode plot with only an audiogenerator (or simple signal generator) and an oscilloscope. The method is explained in an easy to followstep-by-step manner so that a power supply designer can start performing these measurements in a shortamount of time.
• Descargar
  Semiconductor and IC Package Thermal Metrics (Rev. C)
  PDF, 201 Kb, Revisión: C, Archivo publicado: abr 19, 2016
• Descargar
  Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)
  PDF, 512 Kb, Revisión: A, Archivo publicado: sept 12, 2014
  Printed Circuit Board (PCB) layout for Switched Mode Power Supplies (SMPS) is critical to achieve proper converter operation good thermal performance and excellent radiated EMI performance. Optimized board layout for low radiated EMI is made very simple by the package and pin arrangement of the SIMPLE SWITCHER Synchronous Buck Converter family LM4360x and LM4600x
• Descargar
  Simple Techniques Minimize Cross-Coupling in Distributed Power Systems
  PDF, 335 Kb, Archivo publicado: marzo 21, 2007
• Descargar
  AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)
  PDF, 82 Kb, Revisión: C, Archivo publicado: abr 23, 2013
  When designing a high frequency switching regulated power supply layout is very important. Using agood layout can solve many problems associated with these types of supplies. The problems due to a badlayout are often seen at high current levels and are usually more obvious at large input to output voltagedifferentials. Some of the main problems are loss of regulation at high output current
• Descargar
  AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)
  PDF, 374 Kb, Revisión: C, Archivo publicado: abr 23, 2013
  This application report provides SIMPLE SWITCHER™ PCB layout guidelines.
• Descargar
  AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)
  PDF, 2.5 Mb, Revisión: C, Archivo publicado: abr 24, 2013
  Electromagnetic Interference (EMI) is an unwanted effect between two electrical systems as a result ofeither electromagnetic radiation or electromagnetic conduction. EMI is the major adverse effect caused bythe application of switch-mode power supplies (SMPS). In switching power supplies EMI noise isunavoidable due to the switching actions of the semiconductor devices and resulting disconti
• Descargar
  AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)
  PDF, 427 Kb, Revisión: C, Archivo publicado: abr 23, 2013
  This application note discusses stresses in wide input DC-DC converters.
• Descargar
  AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)
  PDF, 9.2 Mb, Revisión: B, Archivo publicado: abr 23, 2013
  This thermal application report provides guidelines for the optimal board layout to achieve the best thermalresistance for exposed packages. The thermal resistance between junction-to-ambient (ОёJA) is highlydependent on the PCB (Printed Circuit Board) design factors. This becomes more critical for packageshaving very low thermal resistance between junction-to-case such as exposed pad TSSOP

Linea modelo

Clasificación del fabricante

• Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Converter (Integrated Switch)