Datasheet Texas Instruments LM1771SMM/NOPB — Ficha de datos
Fabricante | Texas Instruments |
Serie | LM1771 |
Numero de parte | 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 vida | Activo (Recomendado para nuevos diseños) |
Disponibilidad de muestra del fabricante | Sí |
Embalaje
Pin | 8 |
Package Type | DGK |
Industry STD Term | VSSOP |
JEDEC Code | R-PDSO-G |
Package QTY | 1000 |
Carrier | SMALL T&R |
Device Marking | SNRB |
Width (mm) | 3 |
Length (mm) | 3 |
Thickness (mm) | .97 |
Pitch (mm) | .65 |
Max Height (mm) | 1.07 |
Mechanical Data | Descargar |
Paramétricos
Control Mode | Constant on-time (COT) |
Duty Cycle(Max) | 98 % |
Iout(Max) | 6 A |
Iq(Typ) | 0.4 mA |
Number of Phases | 1 |
Operating Temperature Range | -40 to 125 C |
Package Group | VSSOP |
Rating | Catalog |
Regulated Outputs | 1 |
Special Features | Enable |
Switching Frequency(Max) | 2000 kHz |
Switching Frequency(Min) | 500 kHz |
Type | Controller |
Vin(Max) | 5.5 V |
Vin(Min) | 2.8 V |
Vout(Max) | 4.5 V |
Vout(Min) | 0.8 V |
Plan ecológico
RoHS | Obediente |
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
Serie: LM1771 (6)
- LM1771SMM/NOPB LM1771SSD/NOPB LM1771TMM/NOPB LM1771TSD/NOPB LM1771UMM/NOPB LM1771USD/NOPB
Clasificación del fabricante
- Semiconductors > Power Management > Non-isolated DC/DC Switching Regulator > Step-Down (Buck) > Buck Controller (External Switch)