Datasheet Texas Instruments LM1771SMM/NOPB — Ficha de datos

FabricanteTexas Instruments
SerieLM1771
Numero de parteLM1771SMM/NOPB
Datasheet Texas Instruments LM1771SMM/NOPB

Controlador Buck síncrono de bajo voltaje con activación de precisión y sin compensación externa 8-VSSOP

Hojas de datos

LM1771 Low-Voltage Synchronous Buck Controller With Precision Enable and No External Compensation datasheet
PDF, 1.3 Mb, Revisión: D, Archivo publicado: enero 8, 2016
Extracto del documento

Precios

Estado

Estado del ciclo de vidaActivo (Recomendado para nuevos diseños)
Disponibilidad de muestra del fabricante

Embalaje

Pin8
Package TypeDGK
Industry STD TermVSSOP
JEDEC CodeR-PDSO-G
Package QTY1000
CarrierSMALL T&R
Device MarkingSNRB
Width (mm)3
Length (mm)3
Thickness (mm).97
Pitch (mm).65
Max Height (mm)1.07
Mechanical DataDescargar

Paramétricos

Control ModeConstant on-time (COT)
Duty Cycle(Max)98 %
Iout(Max)6 A
Iq(Typ)0.4 mA
Number of Phases1
Operating Temperature Range-40 to 125 C
Package GroupVSSOP
RatingCatalog
Regulated Outputs1
Special FeaturesEnable
Switching Frequency(Max)2000 kHz
Switching Frequency(Min)500 kHz
TypeController
Vin(Max)5.5 V
Vin(Min)2.8 V
Vout(Max)4.5 V
Vout(Min)0.8 V

Plan ecológico

RoHSObediente

Kits de diseño y Módulos de evaluación

  • Evaluation Modules & Boards: LM1771EVAL
    Low-Voltage Synchronous Buck Controller with Precision Enable and No External Compensation
    Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)

Notas de aplicación

  • LM1771 and LM3880 Based FPGA Power Supply Reference Design (Rev. A)
    PDF, 103 Kb, Revisión: A, Archivo publicado: mayo 5, 2013
    This application note discusses the Virtex-5 FPGA power supply prerequisites in terms of the multiplevoltage rail and current level requirements, output sequencing, and startup characteristics.
  • Controlling Output Ripple & Achiev ESR Indep Constant On-Time Reg Designs (Rev. A)
    PDF, 178 Kb, Revisión: A, Archivo publicado: abr 23, 2013
    Of all the voltage regulator control strategies ever devised, the hysteretic regulator is probably about thesimplest. This control methodology simply turns a switch on when the output voltage is below a referenceand turns the switch off when the output rises to a slightly higher reference. The output ripple is thereforea direct function of the difference between the upper and lower reference

Linea modelo

Clasificación del fabricante

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