Datasheet Texas Instruments LM27402SQ/NOPB — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | LM27402 |
| Numero de parte | LM27402SQ/NOPB |
Controlador sincrónico de voltaje de 3-20 V, modo voltaje con detección de corriente DCR 16-WQFN -40 a 125
Hojas de datos
LM27402 High-Performance Synchronous Buck Controller With DCR Current Sensing datasheet
PDF, 2.9 Mb, Revisión: J, Archivo publicado: jul 31, 2015
Extracto del documento
Estado
| Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | Sí |
Embalaje
| Pin | 16 |
| Package Type | RUM |
| Industry STD Term | WQFN |
| JEDEC Code | S-PQFP-N |
| Package QTY | 1000 |
| Carrier | SMALL T&R |
| Device Marking | 27402S |
| Width (mm) | 4 |
| Length (mm) | 4 |
| Thickness (mm) | .75 |
| Pitch (mm) | .65 |
| Max Height (mm) | .8 |
| Mechanical Data | Descargar |
Paramétricos
| Control Mode | Voltage Mode |
| Duty Cycle(Max) | 95 % |
| Iout(Max) | 30 A |
| Iq(Typ) | 4.5 mA |
| Number of Phases | 1 |
| Operating Temperature Range | -40 to 125 C |
| Package Group | WQFN |
| Rating | Catalog |
| Regulated Outputs | 1 |
| Special Features | Enable,Frequency Synchronization,Power Good,Pre-Bias Start-Up,Synchronous Rectification,Tracking |
| Switching Frequency(Max) | 1200 kHz |
| Switching Frequency(Min) | 200 kHz |
| Type | Controller |
| Vin(Max) | 20 V |
| Vin(Min) | 3 V |
| Vout(Max) | 18.6 V |
| Vout(Min) | 0.6 V |
Plan ecológico
| RoHS | Obediente |
Kits de diseño y Módulos de evaluación
- Evaluation Modules & Boards: LM27402POLMODULEVM
LM27402 Evaluation Board
Estado del ciclo de vida: Vista previa (El dispositivo ha sido anunciado pero no está en producción. Las muestras pueden o no estar disponibles) - Evaluation Modules & Boards: LM27402SQEVAL
LM27402 Evaluation Board
Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)
Notas de aplicación
- AN-2060 LM27402 Current Limit Application Circuits (Rev. A)PDF, 89 Kb, Revisión: A, Archivo publicado: mayo 6, 2013
Sensing the inductor DCR voltage can be an accurate and lossless technique of obtaining current information in DC/DC regulators. The absence of a series current sense resistor permits high current and high efficiency designs at a lower cost and higher density. Inductor DCR sensing also allows continuous monitoring of the inductor current as opposed to MOSFET RDS(ON) sensing that usually samples th - Reduce buck-converter EMI and voltage stress by minimizing inductive parasiticsPDF, 926 Kb, Archivo publicado: jul 21, 2016
Linea modelo
Serie: LM27402 (4)
- LM27402MH/NOPB LM27402MHX/NOPB LM27402SQ/NOPB LM27402SQX/NOPB
Clasificación del fabricante
- Semiconductors > Power Management > Non-isolated DC/DC Switching Regulator > Step-Down (Buck) > Buck Controller (External Switch)