Datasheet Linear Technology LTC3822-1 — Ficha de datos
| Fabricante | Linear Technology |
| Serie | LTC3822-1 |
Sin RSENSE, bajo voltaje de entrada, controlador DC / DC sincrónico reductor
Hojas de datos
Datasheet LTC3822-1
PDF, 389 Kb, Idioma: en, Archivo subido: sept 23, 2017, Páginas: 24
No RSENSE , Low Input Voltage, Synchronous Step-Down DC/DC Controller
No RSENSE , Low Input Voltage, Synchronous Step-Down DC/DC Controller
Extracto del documento
Precios
Embalaje
| LTC3822EDD-1#PBF | LTC3822EDD-1#TRPBF | LTC3822EGN-1#PBF | LTC3822EGN-1#TRPBF | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Package | 3x3 DFN-12 Dibujo del esquema del paquete | 3x3 DFN-12 Dibujo del esquema del paquete | SSOP-16 Dibujo del esquema del paquete | SSOP-16 Dibujo del esquema del paquete |
| Package Code | DD | DD | GN | GN |
| Package Index | 05-08-1725 | 05-08-1725 | 05-08-1641 (GN16) | 05-08-1641 (GN16) |
| Pin Count | 12 | 12 | 16 | 16 |
Paramétricos
| Parameters / Models | LTC3822EDD-1#PBF | LTC3822EDD-1#TRPBF | LTC3822EGN-1#PBF | LTC3822EGN-1#TRPBF |
|---|---|---|---|---|
| Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
| Demo Boards | DC1105A | DC1105A | DC1105A | DC1105A |
| Design Tools | LTspice File | LTspice File | LTspice File | LTspice File |
| Export Control | no | no | no | no |
| Features | No Rsense, External Synchronization, Tracking, Burst Mode, Power Good | No Rsense, External Synchronization, Tracking, Burst Mode, Power Good | No Rsense, External Synchronization, Tracking, Burst Mode, Power Good | No Rsense, External Synchronization, Tracking, Burst Mode, Power Good |
| Frequency, kHz | 750 | 750 | 750 | 750 |
| Frequency Adjust Range | 300kHz, 550kHz, 750kHz | 300kHz, 550kHz, 750kHz | 300kHz, 550kHz, 750kHz | 300kHz, 550kHz, 750kHz |
| Frequency Sync Range | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz | 250kHz - 750kHz |
| Integrated Inductor | no | no | no | no |
| Ishutdown, µA | 7.5 | 7.5 | 7.5 | 7.5 |
| Isupply, mA | 0.36 | 0.36 | 0.36 | 0.36 |
| Max Phases | 1 | 1 | 1 | 1 |
| Monolithic | no | no | no | no |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Operating Temperature Range, °C | 0 to 85 | 0 to 85 | 0 to 85 | 0 to 85 |
| Output Current, A | 20 | 20 | 20 | 20 |
| Polyphase | no | no | no | no |
| Sense Resistor | None | None | None | None |
| Switch Current, A | 20 | 20 | 20 | 20 |
| Synchronous | yes | yes | yes | yes |
| Topology | Buck | Buck | Buck | Buck |
| Vin Max, V | 4.5 | 4.5 | 4.5 | 4.5 |
| Vin Min, V | 2.75 | 2.75 | 2.75 | 2.75 |
| Vout Max, V | 4.45 | 4.45 | 4.45 | 4.45 |
| Vout Maximum | .99Vin | .99Vin | .99Vin | .99Vin |
| Vout Min, V | 0.6 | 0.6 | 0.6 | 0.6 |
| Vref Accuracy Over Temp, % | 1 | 1 | 1 | 1 |
Plan ecológico
| LTC3822EDD-1#PBF | LTC3822EDD-1#TRPBF | LTC3822EGN-1#PBF | LTC3822EGN-1#TRPBF | |
|---|---|---|---|---|
| RoHS | Obediente | Obediente | Obediente | Obediente |
Linea modelo
Serie: LTC3822-1 (4)
Clasificación del fabricante
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers