Datasheet Linear Technology LTC3727A-1 — Ficha de datos
| Fabricante | Linear Technology |
| Serie | LTC3727A-1 |
Reguladores de conmutación descendente síncronos de 2 fases de alta eficiencia
Hojas de datos
Datasheet LTC3727A-1
PDF, 341 Kb, Idioma: en, Archivo subido: sept 22, 2017, Páginas: 32
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators
Extracto del documento
Precios
Embalaje
| LTC3727AEG-1#PBF | LTC3727AEG-1#TRPBF | LTC3727AIG-1#PBF | LTC3727AIG-1#TRPBF | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Package | SSOP-28 Dibujo del esquema del paquete | SSOP-28 Dibujo del esquema del paquete | SSOP-28 Dibujo del esquema del paquete | SSOP-28 Dibujo del esquema del paquete |
| Package Code | G | G | G | G |
| Package Index | 05-08-1640 (G28) | 05-08-1640 (G28) | 05-08-1640 (G28) | 05-08-1640 (G28) |
| Pin Count | 28 | 28 | 28 | 28 |
Paramétricos
| Parameters / Models | LTC3727AEG-1#PBF | LTC3727AEG-1#TRPBF | LTC3727AIG-1#PBF | LTC3727AIG-1#TRPBF |
|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC457B | DC457B | DC457B | DC457B |
| Design Tools | LTspice Model | LTspice Model | LTspice Model | LTspice Model |
| Export Control | no | no | no | no |
| Features | PolyPhase, Power Good, PLL, External Synchronization, Burst Mode | PolyPhase, Power Good, PLL, External Synchronization, Burst Mode | PolyPhase, Power Good, PLL, External Synchronization, Burst Mode | PolyPhase, Power Good, PLL, External Synchronization, Burst Mode |
| Frequency, kHz | 550 | 550 | 550 | 550 |
| Frequency Sync Range | 250kHz to 550kHz | 250kHz to 550kHz | 250kHz to 550kHz | 250kHz to 550kHz |
| Integrated Inductor | no | no | no | no |
| Ishutdown, µA | 20 | 20 | 20 | 20 |
| Isupply, mA | 0.67 | 0.67 | 0.67 | 0.67 |
| Max Phases | 2 | 2 | 2 | 2 |
| Monolithic | no | no | no | no |
| Number of Outputs | 2 | 2 | 2 | 2 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 |
| Output Current, A | 25 | 25 | 25 | 25 |
| Output Current 2, A | 25 | 25 | 25 | 25 |
| Polyphase | yes | yes | yes | yes |
| Sense Resistor | Rsense | Rsense | Rsense | Rsense |
| Switch Current, A | 25 | 25 | 25 | 25 |
| Switch Current 2, A | 25 | 25 | 25 | 25 |
| Synchronous | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck |
| Topology 1 | Buck | Buck | Buck | Buck |
| Topology 2 | Buck | Buck | Buck | Buck |
| Vin Max, V | 36 | 36 | 36 | 36 |
| Vin Min, V | 4 | 4 | 4 | 4 |
| Vout Max, V | 14 | 14 | 14 | 14 |
| Vout Maximum | 14V | 14V | 14V | 14V |
| Vout Min, V | 0.8 | 0.8 | 0.8 | 0.8 |
| Vout Min 2, V | .8 | .8 | .8 | .8 |
| Vref Accuracy Over Temp, % | 1 | 1 | 1 | 1 |
Plan ecológico
| LTC3727AEG-1#PBF | LTC3727AEG-1#TRPBF | LTC3727AIG-1#PBF | LTC3727AIG-1#TRPBF | |
|---|---|---|---|---|
| RoHS | Obediente | Obediente | Obediente | Obediente |
Notas de Diseño
- Active Voltage Positioning Reduces Output Capacitors &mdash Design Solutions 10PDF, 130 Kb, Archivo publicado: nov 1, 1999Extracto del documento
Linea modelo
Serie: LTC3727A-1 (4)
Clasificación del fabricante
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers | Multiple Output Buck