Datasheet Linear Technology LTC3772 — Ficha de datos
| Fabricante | Linear Technology |
| Serie | LTC3772 |
Micropower Sin RSENSE Controlador DC / DC reductor de frecuencia constante
Hojas de datos
Datasheet LTC3772
PDF, 259 Kb, Idioma: en, Archivo subido: sept 23, 2017, Páginas: 20
Micropower No RSENSE Constant Frequency Step-Down DC/DC Controller
Micropower No RSENSE Constant Frequency Step-Down DC/DC Controller
Extracto del documento
Precios
Embalaje
| LTC3772EDDB#PBF | LTC3772EDDB#TRMPBF | LTC3772EDDB#TRPBF | LTC3772ETS8#PBF | LTC3772ETS8#TRMPBF | LTC3772ETS8#TRPBF | |
|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 |
| Package | 3x2 DFN-8 Dibujo del esquema del paquete | 3x2 DFN-8 Dibujo del esquema del paquete | 3x2 DFN-8 Dibujo del esquema del paquete | SOT-23 Dibujo del esquema del paquete | SOT-23 Dibujo del esquema del paquete | SOT-23 Dibujo del esquema del paquete |
| Package Code | DDB | DDB | DDB | TS8 | TS8 | TS8 |
| Package Index | 05-08-1702 | 05-08-1702 | 05-08-1702 | 05-08-1637 | 05-08-1637 | 05-08-1637 |
| Pin Count | 8 | 8 | 8 | 8 | 8 | 8 |
Paramétricos
| Parameters / Models | LTC3772EDDB#PBF | LTC3772EDDB#TRMPBF | LTC3772EDDB#TRPBF | LTC3772ETS8#PBF | LTC3772ETS8#TRMPBF | LTC3772ETS8#TRPBF |
|---|---|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC836A | DC836A | DC836A | DC836A | DC836A | DC836A |
| Design Tools | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File | LTspice File |
| Export Control | no | no | no | no | no | no |
| Features | No Rsense, Burst Mode, 100% Duty Cycle | No Rsense, Burst Mode, 100% Duty Cycle | No Rsense, Burst Mode, 100% Duty Cycle | No Rsense, Burst Mode, 100% Duty Cycle | No Rsense, Burst Mode, 100% Duty Cycle | No Rsense, Burst Mode, 100% Duty Cycle |
| Frequency, kHz | 550 | 550 | 550 | 550 | 550 | 550 |
| Integrated Inductor | no | no | no | no | no | no |
| Ishutdown, µA | 8 | 8 | 8 | 8 | 8 | 8 |
| Isupply, mA | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 |
| Max Phases | 1 | 1 | 1 | 1 | 1 | 1 |
| Monolithic | no | no | no | no | no | no |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 |
| Output Current, A | 5 | 5 | 5 | 5 | 5 | 5 |
| Polyphase | no | no | no | no | no | no |
| Sense Resistor | None | None | None | None | None | None |
| Switch Current, A | 5 | 5 | 5 | 5 | 5 | 5 |
| Synchronous | no | no | no | no | no | no |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck |
| Vin Max, V | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 |
| Vin Min, V | 2.75 | 2.75 | 2.75 | 2.75 | 2.75 | 2.75 |
| Vout Max, V | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 |
| Vout Maximum | Vin | Vin | Vin | Vin | Vin | Vin |
| Vout Min, V | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
| Vref Accuracy Over Temp, % | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
Plan ecológico
| LTC3772EDDB#PBF | LTC3772EDDB#TRMPBF | LTC3772EDDB#TRPBF | LTC3772ETS8#PBF | LTC3772ETS8#TRMPBF | LTC3772ETS8#TRPBF | |
|---|---|---|---|---|---|---|
| RoHS | Obediente | Obediente | Obediente | Obediente | Obediente | Obediente |
Artículos
- Tiny DC/DC Buck Controller Provides High Efficiency and Low Ripple &mdash LT JournalPDF, 421 Kb, Archivo publicado: marzo 28, 2006Extracto del documento
Linea modelo
Serie: LTC3772 (6)
Clasificación del fabricante
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | External Power Switch Buck Controllers