Imagens apenas para referência
LM2675 SIMPLE SWITCHER 6.5V TO 4
-
FabricanteNational Semiconductor
-
Peça do Fabricante #LM2675M-ADJ/NOPB
-
Ficha Técnica LM2675M-ADJ/NOPB DataSheet
-
Pacote SOIC-8
-
Em Estoque4147
365 Garantia de Qualidade em 1 dia
7*24 Garantia de serviço em 24 horas
90-Garantia de pós-venda em 1 dia
Garantia de Produto Genuíno
Especificações
| Atributo | Valor |
| Package / Case | Bulk |
| Series | SIMPLE SWITCHER® |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 6.5V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.21V |
| Voltage - Output (Max) | 37V |
| Current - Output | 1A |
| Frequency - Switching | 260kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Visão Geral
Description
The device features a fixed 260 kHz switching frequency, enabling compact and cost-effective designs with fewer external components. It can deliver up to 1A of output current, making it suitable for powering a wide range of load requirements. The LM2675M-ADJ/NOPB also includes built-in thermal shutdown, current limiting, and frequency foldback for enhanced reliability and protection.
This regulator is housed in a TO-263 surface-mount package, which aids in heat dissipation. With its high efficiency and easy-to-use design, the LM2675M-ADJ/NOPB is ideal for applications in telecommunications, industrial systems, battery-powered devices, and distributed power systems where space and energy efficiency are critical.
Equivalent
1. LM2675-ADJ: A similar adjustable version.
2. LM2595: Another adjustable regulator with similar specifications.
3. L4971: From STMicroelectronics, also a step-down regulator.
4. MC34063: A versatile regulator, but often requires more external components.
5. MC33063: Similar to MC34063 with slight enhancements.
Ensure to check detailed specifications for compatibility.
Features
1. Adjustable Output Voltage: Allows for flexibility in setting the desired output voltage.
2. High Efficiency: Capable of delivering efficiencies up to 96%.
3. Wide Input Voltage Range: Operates effectively with input voltages from 8V to 40V.
4. Output Current: Supports up to 1A of output current.
5. Fixed Frequency Operation: Functions at a 260 kHz switching frequency, which simplifies the design of the output filter.
6. Thermal Shutdown and Current Limiting: Designed to protect the device from overheating and excessive current.
7. Minimal External Components: Requires few additional components, simplifying the design process.
8. Low Output Ripple Voltage: Produces a stable output with minimal noise.
9. Soft Start Capability: Reduces inrush current during startup.
This makes the LM2675M-ADJ/NOPB suitable for applications requiring efficient step-down regulation, such as power management in battery-powered devices, distributed power systems, and other consumer electronics.
Pinout
1. Vin: Input supply voltage.
2. GND: Ground connection.
3. SW: Switch pin connected to the inductor.
4. FB: Feedback pin for setting the output voltage.
5. ON/OFF: Enable pin to turn the regulator on or off.
6. NC: No connection (not electrically connected internally).
7. & 8. NC or additional associated functions: Depending on the specific variant and design, these may also be no connection or have specific uses like thermal or electromagnetic interference considerations.
The LM2675M-ADJ/NOPB is known for its high efficiency, low standby current, and ease of use in various power management applications.
Manufacturer
Application
1. Power Supply Solutions: Ideal for converting higher input voltages to lower output voltages in power supply designs.
2. Consumer Electronics: Used in devices like TVs, audio equipment, and gaming consoles for voltage regulation.
3. Industrial Equipment: Provides stable power in machinery and control systems.
4. Telecommunications: Supports power management in networking devices and infrastructure.
5. Automotive: Suitable for in-vehicle electronics requiring reliable voltage regulation.
6. Battery-Powered Devices: Enhances battery life by efficiently managing power distribution.
These applications benefit from its high efficiency, adjustable output, and thermal shutdown features.