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LTC3855IUJ#TRPBF
IC REG CTRLR BUCK 40QFN
- Fabricante
- Mfr. Parte #LTC3855IUJ#TRPBF
- Paquete
- Hoja de datos LTC3855IUJ#TRPBF DataSheet
- En stock9618
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Especificaciones
| Series | PolyPhase® |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 2 |
| Output Phases | 2 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 38V |
| Frequency - Switching | 250kHz ~ 770kHz |
| Duty Cycle (Max) | 95% |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Control Features | Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 40-WFQFN Exposed Pad |
| Supplier Device Package | 40-QFN (6x6) |
| Base Product Number | LTC3855 |
Descripción general
Description
Key features include adjustable output voltage, programmable switching frequency, and built-in protection mechanisms such as over-voltage, under-voltage, and over-current protection. The LTC3855 also supports a power good indicator, soft-start functionality, and can be configured for parallel operation to meet higher current demands.
With its efficiency and flexibility, the LTC3855 is ideal for applications requiring reliable power management in complex systems. It is typically housed in a compact 32-lead HTQFP package, facilitating easy integration into various circuit designs.
Features
1. Input Voltage Range: Operates from 4.5V to 60V, making it suitable for various applications.
2. Output Voltage Control: Adjustable output voltage down to 0.8V with an accurate reference voltage.
3. Current Mode Control: Provides fast transient response and easy compensation.
4. Dual Output Channels: Supports power delivery for multiple outputs with phase interleaving.
5. High Efficiency: Achieves efficiency levels over 95%, reducing thermal management requirements.
6. Programmable Switching Frequency: Adjustable from 250kHz to 1MHz, allowing design flexibility.
7. Power Good Indicator: Monitors output voltage and signals when it falls outside preset limits.
8. Compact Package: Available in a 28-lead HTQFN package for space-constrained applications.
These features make the LTC3855 suitable for industrial, automotive, and telecom power supply designs.
Package
Pinout
Key functions include:
1. Dual Output Control: Can control two outputs with programmable voltage and current settings.
2. Current Mode Control: Ensures fast transient response and improved stability.
3. Power Good Indicator: Monitors output voltage levels.
4. Synchronization: Can synchronize with an external clock for minimized noise.
5. Soft-Start Feature: Reduces inrush current during startup.
The LTC3855 is suitable for applications in industrial, telecom, and high-performance computing. For detailed specifications and functionalities, refer to the manufacturer's datasheet.
Manufacturer
Application
Equivalent
Envío
Métodos de envíoNosotros
ofrecer servicios de envío globales a través de DHL, FedEx, TNT, UPS, o cualquier otro expediente de su elección.
Referencia de tarifas de envío (DHL/FedEx):
DHL: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 2-5 días hábiles.
FedEx: El costo de envío oscila entre $25-$40 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
UPS: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
TNT: El costo de envío oscila entre $25-$65 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
EMS: El costo de envío oscila entre $30-$50 (0.5kg), con un plazo de entrega estimado de 7-15 días hábiles.
Correo aéreo registrado: El costo de envío es de $2-$4 (0.1kg), con un tiempo de entrega estimado de 5-20 días hábiles.
Pagos
Payment Methods
El plazo de pago es 100% prepagado.
Actualmente, solo aceptamos los siguientes métodos de pago:
1. de PayPal
2. Tarjeta de crédito/débito
3. Transferencia bancaria
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