Datasheet Linear Technology LT1777 — Ficha de datos
Fabricante | Linear Technology |
Serie | LT1777 |
Regulador de conmutación reductor de bajo ruido
Hojas de datos
Datasheet LT1777
PDF, 286 Kb, Idioma: en, Archivo subido: sept 3, 2017, Páginas: 24
Low Noise Step-Down Switching Regulator
Low Noise Step-Down Switching Regulator
Extracto del documento
Precios
Embalaje
LT1777CS#PBF | LT1777CS#TRPBF | LT1777IS#PBF | LT1777IS#TRPBF | |
---|---|---|---|---|
N | 1 | 2 | 3 | 4 |
Package | SO-16 Dibujo del esquema del paquete | SO-16 Dibujo del esquema del paquete | SO-16 Dibujo del esquema del paquete | SO-16 Dibujo del esquema del paquete |
Package Code | S | S | S | S |
Package Index | 05-08-1610 (S16) | 05-08-1610 (S16) | 05-08-1610 (S16) | 05-08-1610 (S16) |
Pin Count | 16 | 16 | 16 | 16 |
Paramétricos
Parameters / Models | LT1777CS#PBF | LT1777CS#TRPBF | LT1777IS#PBF | LT1777IS#TRPBF |
---|---|---|---|---|
Architecture | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode | Constant Frequency Current Mode |
Demo Boards | DC242A | DC242A | DC242A | DC242A |
Design Tools | LTspice Model | LTspice Model | LTspice Model | LTspice Model |
Export Control | no | no | no | no |
Features | Low EMI, Adjustable Slew Rate, External Synchronization | Low EMI, Adjustable Slew Rate, External Synchronization | Low EMI, Adjustable Slew Rate, External Synchronization | Low EMI, Adjustable Slew Rate, External Synchronization |
Frequency, kHz | 100 | 100 | 100 | 100 |
Frequency Sync Range | 130kHz - 250kHz | 130kHz - 250kHz | 130kHz - 250kHz | 130kHz - 250kHz |
Integrated Inductor | no | no | no | no |
Ishutdown, µA | 12 | 12 | 12 | 12 |
Isupply, mA | 0.62 | 0.62 | 0.62 | 0.62 |
Max Phases | 1 | 1 | 1 | 1 |
Monolithic | yes | yes | yes | yes |
Number of Outputs | 1 | 1 | 1 | 1 |
Operating Temperature Range, °C | 0 to 70 | 0 to 70 | -40 to 85 | -40 to 85 |
Output Current, A | 0.44 | 0.44 | 0.44 | 0.44 |
Polyphase | no | no | no | no |
Switch Current, A | 0.7 | 0.7 | 0.7 | 0.7 |
Synchronous | no | no | no | no |
Topology | Buck | Buck | Buck | Buck |
Vin Max, V | 48 | 48 | 48 | 48 |
Vin Min, V | 7 | 7 | 7 | 7 |
Vout Max, V | 30 | 30 | 30 | 30 |
Vout Maximum | .85VIN | .85VIN | .85VIN | .85VIN |
Vout Min, V | 1.24 | 1.24 | 1.24 | 1.24 |
Vref Accuracy Over Temp, % | 1.2 | 1.2 | 1.2 | 1.2 |
Plan ecológico
LT1777CS#PBF | LT1777CS#TRPBF | LT1777IS#PBF | LT1777IS#TRPBF | |
---|---|---|---|---|
RoHS | Obediente | Obediente | Obediente | Obediente |
Notas de Diseño
- LT1777 High Voltage, Low Noise Buck Switching Regulator &mdash DN212PDF, 115 Kb, Archivo publicado: sept 2, 1999Extracto del documento
Artículos
- Generating Low Cost, Low Noise, Dual-Voltage Supplies &mdash LT JournalPDF, 72 Kb, Archivo publicado: feb 1, 1999Extracto del documento
Linea modelo
Serie: LT1777 (4)
Clasificación del fabricante
- Power Management > Switching Regulator > Step-Down (Buck) Regulators > High Input Voltage Buck | Internal Power Switch Buck
- Power Management > Switching Regulator > Ultralow Noise Regulators