Datasheet Texas Instruments LM25085A — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | LM25085A |
4.5-42V Wide Vin, Controlador Buck PFET no síncrono constante a tiempo con referencia de 0.9V
Hojas de datos
42V Constant On-Time PFET Buck Switching Controller with 0.9V Reference datasheet
PDF, 1.6 Mb, Revisión: B, Archivo publicado: marzo 6, 2013
Extracto del documento
Precios
Estado
| LM25085AMM/NOPB | LM25085AMME/NOPB | LM25085AMMX/NOPB | LM25085AMY/NOPB | LM25085AMYE/NOPB | LM25085AMYX/NOPB | LM25085ASD/NOPB | LM25085ASDE/NOPB | LM25085ASDX/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) | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | No | No | No | No | No | No | Sí | No | Sí |
Embalaje
| LM25085AMM/NOPB | LM25085AMME/NOPB | LM25085AMMX/NOPB | LM25085AMY/NOPB | LM25085AMYE/NOPB | LM25085AMYX/NOPB | LM25085ASD/NOPB | LM25085ASDE/NOPB | LM25085ASDX/NOPB | |
|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Pin | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Package Type | DGK | DGK | DGK | DGN | DGN | DGN | NGQ | NGQ | NGQ |
| Industry STD Term | VSSOP | VSSOP | VSSOP | HVSSOP | HVSSOP | HVSSOP | WSON | 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 | S-PDSO-N |
| Package QTY | 1000 | 250 | 3500 | 1000 | 250 | 3500 | 1000 | 250 | 4500 |
| 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 | LARGE T&R |
| Device Marking | SVZA | SVZA | SVZA | SVYA | SVYA | SVYA | L246A | L246A | L246A |
| Width (mm) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Length (mm) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Thickness (mm) | .97 | .97 | .97 | 1.02 | 1.02 | 1.02 | .8 | .8 | .8 |
| Pitch (mm) | .65 | .65 | .65 | .65 | .65 | .65 | .5 | .5 | .5 |
| Max Height (mm) | 1.07 | 1.07 | 1.07 | 1.1 | 1.1 | 1.1 | .8 | .8 | .8 |
| Mechanical Data | Descargar | Descargar | Descargar | Descargar | Descargar | Descargar | Descargar | Descargar | Descargar |
Paramétricos
| Parameters / Models | LM25085AMM/NOPB | LM25085AMME/NOPB | LM25085AMMX/NOPB | LM25085AMY/NOPB | LM25085AMYE/NOPB | LM25085AMYX/NOPB | LM25085ASD/NOPB | LM25085ASDE/NOPB | LM25085ASDX/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) | Constant on-time (COT) |
| Duty Cycle(Max), % | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Iout(Max), A | 10 | 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 | 1.25 |
| Number of Phases | 1 | 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 | -40 to 125 |
| Package Group | VSSOP | VSSOP | VSSOP | MSOP-PowerPAD | MSOP-PowerPAD | MSOP-PowerPAD | WSON | WSON | WSON |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| Regulated Outputs | 1 | 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 | Adjustable Current Limit,Frequency Synchronization |
| Switching Frequency(Max), kHz | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
| Switching Frequency(Min), kHz | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Type | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller |
| Vin(Max), V | 42 | 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 | 4.5 |
| Vout(Max), V | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 |
| Vout(Min), V | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 |
Plan ecológico
| LM25085AMM/NOPB | LM25085AMME/NOPB | LM25085AMMX/NOPB | LM25085AMY/NOPB | LM25085AMYE/NOPB | LM25085AMYX/NOPB | LM25085ASD/NOPB | LM25085ASDE/NOPB | LM25085ASDX/NOPB | |
|---|---|---|---|---|---|---|---|---|---|
| RoHS | Obediente | Obediente | Obediente | Obediente | Obediente | Obediente | Obediente | Obediente | Obediente |
Notas de aplicación
- 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. - Reduce buck-converter EMI and voltage stress by minimizing inductive parasiticsPDF, 926 Kb, Archivo publicado: jul 21, 2016
Linea modelo
Serie: LM25085A (9)
Clasificación del fabricante
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Controller (External Switch)