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LM3478MM
IC REG CTRLR MULT TOP 8VSSOP
- Fabricante
- Mfr. Parte #LM3478MM
- Paquete VSSOP (DGK)-8
- Hoja de datos
- En stock5079
100% original & Nuevo
24 horas listos para el envío
Garantía de 365 días
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Especificaciones
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Not For New Designs |
| OutputType | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Boost, Flyback, SEPIC |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 2.97V ~ 40V |
| Frequency-Switching | 100kHz ~ 1MHz |
| DutyCycle(Max) | 100% |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Enable, Frequency Control |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) |
Descripción general
Description
Key features of the LM3478MM include a wide input voltage range (2.97V to 40V), making it applicable for battery-powered and industrial systems. It operates at a wide temperature range and offers adjustable frequency, providing design flexibility. The device includes important protection features such as current limit, thermal shutdown, and soft start to ensure reliable operation and protection of the circuit components.
The LM3478MM is housed in a compact MSOP-8 package, which aids in saving board space. Its adaptability and robust design make it ideal for applications such as LED drivers, power supply units, and other electronic devices requiring efficient DC-DC voltage conversion.
Features
1. Wide Input Voltage Range: The LM3478MM can operate with input voltages ranging from 2.97V to 40V, making it suitable for a variety of applications.
2. High Efficiency: It supports high-efficiency power conversion, which is vital for battery-powered devices.
3. Adjustable Output Voltage: The output voltage can be easily set using an external resistor divider.
4. Switching Frequency: It offers a wide range of switching frequencies (up to 1 MHz), which can be adjusted with a single resistor, enabling flexibility in design.
5. Low Shutdown Current: The device features a low shutdown current of 5 µA, conserving energy in power-down mode.
6. Current Mode Control: This feature provides better transient response and loop stability.
7. Integrated Features: Includes features like cycle-by-cycle current limiting and thermal shutdown for robust performance.
8. Package: The LM3478MM is available in a small, thermally efficient VSSOP-8 package, suitable for space-constrained applications.
These features make it ideal for use in automotive, telecom, and industrial applications.
Package
Pinout
1. SW (Switch): Connects to the switching node.
2. GND (Ground): Ground reference for the device.
3. FB (Feedback): Feedback input for setting the output voltage.
4. COMP (Compensation): Compensation network connection for stability.
5. UVLO (Under-Voltage Lockout): Sets the undervoltage lockout threshold.
6. PGATE (Power Gate): Drives the gate of the external FET.
7. VIN (Input Voltage): Supply voltage for the controller.
8. ISEN (Current Sense): Current sense input for over-current protection.
These pins work together to control the power conversion process, regulate output voltage, and protect the circuit from conditions such as over-current.
Manufacturer
Application
Equivalent
1. LT3758 - Offers similar functionality with wide input range.
2. MC34063 - A classic DC-DC converter IC, although less advanced.
3. TPS40210 - A flexible controller for DC-DC converters.
4. MAX668 - Precision PWM controller with similar features.
Always check the specific requirements and specifications to ensure compatibility.
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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