Datasheet Texas Instruments LM1771TMM/NOPB — Ficha de datos

FabricanteTexas Instruments
SerieLM1771
Numero de parteLM1771TMM/NOPB
Datasheet Texas Instruments LM1771TMM/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

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 MarkingSNSB
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)