Datasheet Texas Instruments LM25085 — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | LM25085 |
4.5-42V Wide Vin, controlador de Buck PFET no síncrono constante a tiempo
Hojas de datos
LM25085 / -Q1 42V Constant On-Time PFET Buck Switching Controller datasheet
PDF, 1.7 Mb, Revisión: J, Archivo publicado: nov 3, 2014
Extracto del documento
Estado
| LM25085MM/NOPB | LM25085MME/NOPB | LM25085MMX/NOPB | LM25085MY/NOPB | LM25085MYE/NOPB | LM25085MYX/NOPB | LM25085SD/NOPB | LM25085SDE/NOPB | |
|---|---|---|---|---|---|---|---|---|
| Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) | Activo (Recomendado para nuevos diseños) | Activo (Recomendado para nuevos diseños) | Activo (Recomendado para nuevos diseños) | Activo (Recomendado para nuevos diseños) | Activo (Recomendado para nuevos diseños) | Activo (Recomendado para nuevos diseños) | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | Sí | Sí | No | No | Sí | No | No | Sí |
Embalaje
| LM25085MM/NOPB | LM25085MME/NOPB | LM25085MMX/NOPB | LM25085MY/NOPB | LM25085MYE/NOPB | LM25085MYX/NOPB | LM25085SD/NOPB | LM25085SDE/NOPB | |
|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Pin | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Package Type | DGK | DGK | DGK | DGN | DGN | DGN | NGQ | NGQ |
| Industry STD Term | VSSOP | VSSOP | VSSOP | HVSSOP | HVSSOP | HVSSOP | WSON | WSON |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | S-PDSO-G | S-PDSO-G | S-PDSO-G | S-PDSO-N | S-PDSO-N |
| Package QTY | 1000 | 250 | 3500 | 1000 | 250 | 3500 | 1000 | 250 |
| Carrier | SMALL T&R | SMALL T&R | LARGE T&R | SMALL T&R | SMALL T&R | LARGE T&R | SMALL T&R | SMALL T&R |
| Device Marking | SVZB | SVZB | SVZB | SVYB | SVYB | SVYB | L246B | L246B |
| Width (mm) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Length (mm) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Thickness (mm) | .97 | .97 | .97 | 1.02 | 1.02 | 1.02 | .8 | .8 |
| Pitch (mm) | .65 | .65 | .65 | .65 | .65 | .65 | .5 | .5 |
| Max Height (mm) | 1.07 | 1.07 | 1.07 | 1.1 | 1.1 | 1.1 | .8 | .8 |
| Mechanical Data | Descargar | Descargar | Descargar | Descargar | Descargar | Descargar | Descargar | Descargar |
Paramétricos
| Parameters / Models | LM25085MM/NOPB | LM25085MME/NOPB | LM25085MMX/NOPB | LM25085MY/NOPB | LM25085MYE/NOPB | LM25085MYX/NOPB | LM25085SD/NOPB | LM25085SDE/NOPB |
|---|---|---|---|---|---|---|---|---|
| Control Mode | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) |
| Duty Cycle(Max), % | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Iout(Max), A | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Iq(Typ), mA | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 |
| Number of Phases | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 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 |
| Package Group | VSSOP | VSSOP | VSSOP | MSOP-PowerPAD | MSOP-PowerPAD | MSOP-PowerPAD | WSON | WSON |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| Regulated Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Special Features | Adjustable Current Limit,Frequency Synchronization | Adjustable Current Limit,Frequency Synchronization | Adjustable Current Limit,Frequency Synchronization | Adjustable Current Limit,Frequency Synchronization | Adjustable Current Limit,Frequency Synchronization | Adjustable Current Limit,Frequency Synchronization | Adjustable Current Limit,Frequency Synchronization | Adjustable Current Limit,Frequency Synchronization |
| Switching Frequency(Max), kHz | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
| Switching Frequency(Min), kHz | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Type | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller |
| Vin(Max), V | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 |
| Vin(Min), V | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Vout(Max), V | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 |
| Vout(Min), V | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 |
Plan ecológico
| LM25085MM/NOPB | LM25085MME/NOPB | LM25085MMX/NOPB | LM25085MY/NOPB | LM25085MYE/NOPB | LM25085MYX/NOPB | LM25085SD/NOPB | LM25085SDE/NOPB | |
|---|---|---|---|---|---|---|---|---|
| RoHS | Obediente | Obediente | Obediente | Obediente | Obediente | Obediente | Obediente | Obediente |
Notas de aplicación
- Automated Frequency Response AnalyzerPDF, 939 Kb, Archivo publicado: oct 9, 2013
This application report discusses a new method of doing stability Analysis testing by using basic labequipment, while not requiring any specific instruments. - Constant Current Constant Voltage Buck Converter w/LM25085 (Rev. A)PDF, 377 Kb, Revisión: A, Archivo publicado: abr 23, 2013
In many applications, a constant-current constant-voltage (CC/CV) dc source is needed. The I-Vcharacteristic of a constant-current constant-voltage (CC/CV) source is shown in Figure 1. This applicationreport presents an external op-amp based accurate current limit circuit suitable for CC/CV operation whenthe required constant current range is very narrow. - Transient Response versus Ripple – An Analysis of Ripple Injection TechniquesPDF, 2.9 Mb, Archivo publicado: abr 28, 2014
In this application note the implications of ripple injection techniques, aimed at minimizingoutput ripple voltage, on the transient response of a supply are highlighted. The results help choose a suitable ripple injection technique after striking a balance between the output ripple voltage and the transient response required by the load.
Linea modelo
Serie: LM25085 (8)
Clasificación del fabricante
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Controller (External Switch)