LM2677SX-3.3 Allicdata Electronics
Allicdata Part #:

LM2677SX-3.3-ND

Manufacturer Part#:

LM2677SX-3.3

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC REG BUCK 3.3V 5A TO263-7
More Detail: Buck Switching Regulator IC Positive Fixed 3.3V 1 ...
DataSheet: LM2677SX-3.3 datasheetLM2677SX-3.3 Datasheet/PDF
Quantity: 1000
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Voltage - Output (Min/Fixed): 3.3V
Base Part Number: LM2677
Supplier Device Package: DDPAK/TO-263-7
Package / Case: TO-263-8, D²Pak (7 Leads + Tab), TO-263CA
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 125°C (TJ)
Synchronous Rectifier: No
Frequency - Switching: 260kHz
Current - Output: 5A
Voltage - Output (Max): --
Series: SIMPLE SWITCHER®
Voltage - Input (Max): 40V
Voltage - Input (Min): 8V
Number of Outputs: 1
Output Type: Fixed
Topology: Buck
Output Configuration: Positive
Function: Step-Down
Part Status: Obsolete
Packaging: Tape & Reel (TR) 
Description

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The LM2677SX-3.3 is a type of DC-DC switching regulator that is possible to use in applications that require an input voltage ranging from 3 to 36 VDC. This type of regulator is useful when a supply voltage needs to be reduced to a more manageable level, allowing for certain components to operate at a lower and more efficient voltage level. The LM2677SX-3.3 is particularly useful for applications where input voltage levels need to be reduced, providing predictable and reliable performance for better system stability.

The LM2677SX-3.3 is a monolithic integrated circuit that is composed of two main sections; the drivers and the regulators. The drivers part of the LM2677SX-3.3 are responsible for controlling the switches, while the regulators are machines which translate the range of input voltages provided into the output voltage desired. This type of DC-DC switching regulator is particularly equipped with short-circuit protection, over-current protection, over-temperature protection, reverse battery protection, and thermal shutdown protection, ensuring the safety and efficient operations of the system.

The maximum output current supplied by the LM2677SX-3.3 is 3.3 A, with a maximum output power of 10.89 W. The minimum switching frequency of the regulator is 200 kHz. Furthermore, the power efficiency of the LM2677SX-3.3 can reach up to 95%.

The application field of the LM2677SX-3.3 is greatly diverse. It is commonly used in battery-operated products, like cameras, cellular phones, notebook computer, and personal digital assistant. The LM2677SX-3.3 can also be used in automotive industries, solar energy systems, and more. Furthermore, it is also useful for providing power to tablet computers, graphics card and other computer peripherals, as well as for providing various types of power supplies for medical instruments.

In terms of its working principle, the LM2677SX-3.3 operates by utilizing the Pulse-Width Modulation (PWM) rectification technology. PWM rectification is a form of power regulation that is achieved by controlling the width of the pulses applied to the load by some electronic circuit. As the modulated pulses are applied to the load, the output voltage will be adjusted accordingly, to provide power to the electronic components.

By taking advantage of PWM frequency, the LM2677SX-3.3 can efficiently convert the input voltage levels. When the input voltage levels are higher than the output voltage levels, the pulse width of the carriers is increased; when the input voltage is lower than the output voltage, the pulse width is decreased. This enables the switching regulator to maintain the output voltage at a predictable level.

Apart from the ON/OFF control that the PWM rectifier offers, the LM2677SX-3.3 is also equipped with Output Over-Voltage protection. This feature ensures that when the output voltage goes above a certain level, it will shut down the regulating circuit and prevent any danger to the system. The circuit also protects against high temperature conditions, by automatically restarting when the temperature reduces.

The LM2677SX-3.3 is an efficient switching regulator with a wide range of applications, providing reliable operations with a wide input voltage range and a total power efficiency of up to 95%. It is equipped with various protection features, and the PWM rectification technology allows it to maintain predictable output voltage levels.

The specific data is subject to PDF, and the above content is for reference

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