LM2577S-ADJ

Imagens apenas para referência

LM2577S-ADJ

+Lista de Materiais

IC REG MULT CONFG ADJ 3A TO263

  • FabricanteTexas Instruments

  • Peça do Fabricante #LM2577S-ADJ

  • Pacote TO-263 (KTT)-5

  • Em Estoque3120

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 Tube
Series SIMPLE SWITCHER®
ProductStatus Not For New Designs
Function Step-Up, Step-Up/Step-Down
OutputConfiguration Positive or Negative
Topology Boost, Flyback, Forward Converter
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 3.5V
Voltage-Input(Max) 40V
Voltage-Output(Min/Fixed) 1.23V
Voltage-Output(Max) 60V (Switch)
Current-Output 3A (Switch)
Frequency-Switching 52kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case TO-263-6, D²Pak (5 Leads + Tab), TO-263BA

Visão Geral

Description

The LM2577S-ADJ is a versatile and efficient step-up (boost) voltage regulator from Texas Instruments. It is designed to provide a regulated output voltage that is higher than the input voltage. The "ADJ" in its name indicates that it features an adjustable output, allowing users to set the desired output voltage through external resistors.
Key features of the LM2577S-ADJ include:
1. Wide Input Voltage Range: It can operate with input voltages as low as 3.5V and as high as 40V.

2. Adjustable Output Voltage: The output voltage can be adjusted by using external feedback resistors, providing flexibility for different applications.
3. High Efficiency: The device is designed for high efficiency, typically around 80%, depending on the input/output conditions.
4. Protection Features: It includes features like current limiting and thermal shutdown to protect the device and load.
5. Applications: It is commonly used in battery-operated devices, power supplies, and other applications requiring voltage boosting.
The LM2577S-ADJ offers a reliable solution for designers needing a boost converter with adjustable output capabilities.

Equivalent

The LM2577S-ADJ is a step-up (boost) voltage regulator. Equivalent products include:
1. MC34063 - A versatile DC-DC converter IC used for step-up, step-down, or inverting applications.
2. XL6009 - A high-efficiency boost converter with a wide input voltage range.
3. LM2587 - Offers higher current output than LM2577.
4. LTC1871 - A current mode boost DC/DC controller suitable for similar applications.
Check specifications to ensure compatibility with your specific requirements.

Features

The LM2577S-ADJ is a versatile DC-DC switching regulator designed for step-up (boost) voltage applications. Key features include:
1. Adjustable Output: The "ADJ" in its name indicates an adjustable output voltage, allowing for flexible use across various applications by setting the desired output voltage through external resistors.
2. Wide Input Voltage Range: It supports a broad input voltage range from 3.5V to 40V, accommodating different power sources.
3. High Efficiency: The regulator is designed for high efficiency, often achieving over 80%, which is crucial for battery-powered and heat-sensitive applications.
4. Internal Power Switch: It includes a built-in power switch, simplifying design and reducing the need for external components.
5. Current Limiting and Thermal Shutdown: These features protect the device and the application from damage due to excessive current or overheating.
6. Low Component Count: The LM2577S-ADJ requires relatively few external components, simplifying the design and reducing overall system cost.
7. Available in TO-263 Package: This package enhances thermal performance, making it suitable for various industrial and consumer applications.

Pinout

The LM2577S-ADJ is a step-up voltage regulator IC with a 5-pin configuration. Here's a brief overview of its pins and functions:
1. Pin 1 (VREF/COMP): This pin is used for compensation to stabilize the feedback loop. It can also be connected to an external feedback network to set the output voltage.
2. Pin 2 (VIN): This is the input voltage pin where the unregulated input supply voltage is connected.
3. Pin 3 (SWITCH): This pin connects to the internal switch. It is connected to the inductor, diode, and output capacitor in the external circuit.
4. Pin 4 (GND): This pin is the ground reference point for the circuit.
5. Pin 5 (FB): The feedback pin allows for adjustable output voltage. It connects to a resistor divider network to monitor the output voltage and set the desired level.
The LM2577S-ADJ is used primarily in applications requiring a voltage boost, like battery-powered devices, where it efficiently steps up the input voltage to a higher, regulated output voltage.

Manufacturer

The LM2577S-ADJ is a step-up voltage regulator manufactured by Texas Instruments. Texas Instruments, commonly known as TI, is a global semiconductor company that designs and manufactures a wide range of electronic components. These components are used in various applications, including industrial, automotive, personal electronics, and communications equipment. TI is known for its innovation in analog and embedded processing products, which help in efficiently managing power, processing data, and connecting devices across a wide array of industries. The company is headquartered in Dallas, Texas, and has a presence in over 30 countries.

Application

The LM2577S-ADJ is a versatile DC-DC boost (step-up) voltage regulator commonly used in various applications. These include power supply circuits for battery-operated devices, where it efficiently increases voltage levels for components requiring higher input. It's also used in automotive electronics, providing stable voltage outputs despite fluctuating battery levels. Additionally, the LM2577S-ADJ is found in LCD displays, powering backlight systems by converting lower battery voltages to the higher levels needed. It's suitable for RF communication equipment, providing stable power for sensitive components. Its adjustable output makes it ideal for custom power solutions across consumer electronics, industrial control systems, and renewable energy systems, such as solar power converters.

Package

The LM2577S-ADJ is a step-up voltage regulator from Texas Instruments. It comes in a TO-263 surface-mount package, also known as a D2PAK. This package type allows for efficient heat dissipation and is suitable for high-power applications.

Produtos relacionados a LM2577S-ADJ