Datasheet Linear Technology LTC3728L-1 — Ficha de datos
| Fabricante | Linear Technology |
| Serie | LTC3728L-1 |
Regulador síncrono bifásico dual de 550 kHz
Hojas de datos
Datasheet LTC3728L-1
PDF, 487 Kb, Idioma: en, Archivo subido: sept 22, 2017, Páginas: 32
Dual, 550kHz, 2-Phase Synchronous Regulator
Dual, 550kHz, 2-Phase Synchronous Regulator
Extracto del documento
Precios
Embalaje
| LTC3728LEGN-1#PBF | LTC3728LEGN-1#TRPBF | LTC3728LEUH-1#PBF | LTC3728LEUH-1#TRPBF | LTC3728LIGN-1#PBF | LTC3728LIGN-1#TRPBF | LTC3728LIUH-1#TRPBF | |
|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Package | SSOP-28 Dibujo del esquema del paquete | SSOP-28 Dibujo del esquema del paquete | 5x5 QFN-32 Dibujo del esquema del paquete | 5x5 QFN-32 Dibujo del esquema del paquete | SSOP-28 Dibujo del esquema del paquete | SSOP-28 Dibujo del esquema del paquete | 5x5 QFN-32 Dibujo del esquema del paquete |
| Package Code | GN | GN | UH | UH | GN | GN | UH |
| Package Index | 05-08-1641 (GN28) | 05-08-1641 (GN28) | 05-08-1693 | 05-08-1693 | 05-08-1641 (GN28) | 05-08-1641 (GN28) | 05-08-1693 |
| Pin Count | 28 | 28 | 32 | 32 | 28 | 28 | 32 |
Paramétricos
| Parameters / Models | LTC3728LEGN-1#PBF | LTC3728LEGN-1#TRPBF | LTC3728LEUH-1#PBF | LTC3728LEUH-1#TRPBF | LTC3728LIGN-1#PBF | LTC3728LIGN-1#TRPBF | LTC3728LIUH-1#TRPBF |
|---|---|---|---|---|---|---|---|
| Design Tools | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model | LTspice Model |
| Export Control | no | no | no | no | no | no | no |
| Features | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start | PolyPhase, External Synchronization, Power Good, Burst Mode, Soft Start |
| Frequency, kHz | 550 | 550 | 550 | 550 | 550 | 550 | 550 |
| Frequency Sync Range | 250kHz - 550kHz | 250kHz - 550kHz | 250kHz - 550kHz | 250kHz - 550kHz | 250kHz - 550kHz | 250kHz - 550kHz | 250kHz - 550kHz |
| Ishutdown, µA | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Isupply, mA | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 |
| Monolithic | no | no | no | no | no | no | no |
| Number of Outputs | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Output Current, A | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Output Current 2, A | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Polyphase | yes | yes | yes | yes | yes | yes | yes |
| Switch Current, A | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Synchronous | yes | yes | yes | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Vin Max, V | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Vin Min, V | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Vout Max, V | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Vout Maximum | 7V | 7V | 7V | 7V | 7V | 7V | 7V |
| Vout Min, V | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
Plan ecológico
| LTC3728LEGN-1#PBF | LTC3728LEGN-1#TRPBF | LTC3728LEUH-1#PBF | LTC3728LEUH-1#TRPBF | LTC3728LIGN-1#PBF | LTC3728LIGN-1#TRPBF | LTC3728LIUH-1#TRPBF | |
|---|---|---|---|---|---|---|---|
| RoHS | Obediente | Obediente | Obediente | 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: LTC3728L-1 (7)
Clasificación del fabricante
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | External Power Switch Buck Controllers