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LM25148RGYR
42-V SYNCHRONOUS BUCK DC/DC CONT
- Fabricante
- Mfr. Parte #LM25148RGYR
- Paquete
- Hoja de datos LM25148RGYR DataSheet
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Especificaciones
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 3.5V ~ 42V |
| Frequency - Switching | 100kHz ~ 2.2MHz |
| Duty Cycle (Max) | 100% |
| Synchronous Rectifier | Yes |
| Clock Sync | Yes |
| Control Features | Current Limit, Power Good, Ramp, Soft Start |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Package / Case | 24-VFQFN Exposed Pad |
| Supplier Device Package | 24-VQFN (5.5x3.5) |
| Base Product Number | LM25148 |
Descripción general
Description
Key features include adjustable output voltage, high efficiency (up to 95%), and a range of protection mechanisms like overcurrent and thermal shutdown. The LM25148RGYR also supports a frequency of up to 1MHz, allowing for smaller external components and reduced PCB space.
It operates in both pulse-width modulation (PWM) and pulse-frequency modulation (PFM) modes, enhancing efficiency under varying load conditions. Overall, it's a versatile and robust solution for power management in diverse electronic applications.
Features
1. Input Voltage Range: Operates from 4.5V to 60V, making it suitable for various applications.
2. Output Current: Capable of delivering up to 3A output current.
3. High Efficiency: Designed for high efficiency (up to 95%) to minimize power loss and heat generation.
4. Adjustable Output Voltage: The output voltage can be set from 0.8V to 5V using external resistors.
5. Integrated High/Low Side Switches: Reduces the need for external components, simplifying design.
6. Compensation Circuit: Includes a built-in compensation circuit for improved stability and transient response.
7. Switching Frequency: Typically operates at a frequency of 300 kHz, allowing for smaller inductor and capacitor sizes.
8. Thermal Shutdown and Overcurrent Protection: Provides built-in protection features to enhance reliability.
These features make the LM25148RGYR suitable for applications like industrial power supplies, telecom equipment, and battery-powered devices.
Package
Pinout
Key pin functions include:
1. VIN: Input voltage supply.
2. GND: Ground reference.
3. SW: Switch node connected to the inductor.
4. VOUT: Output voltage.
5. COMP: Compensation network connection for stability.
6. CSN/ CSP: Current sense pins for overcurrent protection.
7. EN: Enable pin to turn the regulator on/off.
8. FB: Feedback pin for voltage regulation.
9. RT: Frequency setting using an external resistor.
10. PG: Power good signal for monitoring output status.
This device is designed for applications requiring high efficiency and compact size, making it suitable for a variety of modern electronic devices.
Manufacturer
Application
Equivalent
Envío
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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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