LM2853MHX-3.3

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LM2853MHX-3.3

IC REG BUCK 3.3V 3A 14HTSSOP

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사양

Package Tape & Reel (TR)
Series SIMPLE SWITCHER®
ProductStatus Obsolete
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Fixed
NumberofOutputs 1
Voltage-Input(Min) 3V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 3.3V
Current-Output 3A
Frequency-Switching 550kHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 14-TSSOP (0.173, 4.40mm Width) Exposed Pad

개요

Description

The LM2853MHX-3.3 is a high-efficiency switching voltage regulator designed to provide a fixed 3.3V output. It is part of the LM2853 series, which is tailored for applications requiring precise voltage regulation with minimal power loss. This regulator utilizes a synchronous buck converter architecture, making it suitable for powering low-voltage digital circuits in devices such as microcontrollers and FPGAs.
Key features include a wide input voltage range, typically from 3V to 5.5V, and a high switching frequency, which allows for smaller external components and a compact design. The device is known for its excellent transient response and stability, even under varying load conditions. It also incorporates protection features such as overcurrent protection, thermal shutdown, and soft-start to prevent inrush current, enhancing reliability.
The LM2853MHX-3.3 is typically used in portable electronics, communication equipment, and other applications where efficient power conversion and space-saving are critical. It is housed in a thermally enhanced package, which aids in maintaining performance across various operating conditions.

Features

The LM2853MHX-3.3 is a high-efficiency, step-down DC-DC converter, specifically designed to provide a fixed 3.3V output. Key features include:
1. Wide Input Voltage Range: It can operate with an input voltage range from 3V to 5.5V, making it versatile for various applications.
2. High Efficiency: The device is designed to deliver high efficiency over a broad load range, which is beneficial for battery-powered applications.
3. Integrated Switches: It includes integrated power MOSFETs, reducing the need for external components and simplifying the design process.
4. Fixed Output Voltage: Provides a fixed output voltage of 3.3V, which is commonly used in digital circuits.
5. Current Capability: Capable of delivering up to 3A of output current, supporting moderate power needs.
6. Thermal Protection: Incorporates thermal shutdown features to protect against overheating.
7. Compact Package: Available in a thermally enhanced HTSSOP package, suitable for space-constrained applications.
8. Application: Ideal for use in applications like point-of-load regulation in battery-powered devices, portable equipment, and other compact systems requiring efficient power management.
These features make the LM2853MHX-3.3 a robust choice for efficient power conversion in various electronic applications.

Package

The LM2853MHX-3.3 is a voltage regulator from Texas Instruments and is typically available in a 20-lead TSSOP (Thin Shrink Small Outline Package) PowerPAD package. This package type is designed to offer good thermal performance and is compact, making it suitable for space-constrained applications.

Pinout

The LM2853MHX-3.3 is a switching voltage regulator designed to provide a stable 3.3V output. It comes in a 20-pin TSSOP (Thin Shrink Small Outline Package) package. The primary function of the LM2853MHX-3.3 is to convert a higher input voltage to a stable 3.3V output with high efficiency, suitable for powering digital circuits in various applications.
Key features include:
- Fixed 3.3V output voltage.
- High efficiency switching design.
- Over-current and thermal protection for enhanced reliability.
The pin configurations typically include input voltage pins, output voltage pins, ground pins, feedback pins, enable/shutdown pins, and other control and compensation pins. Each specific pin's function is detailed in the manufacturer's datasheet, which should be consulted for precise pin assignments and electrical characteristics.

Manufacturer

The LM2853MHX-3.3 is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits. These are sold to electronics designers and manufacturers globally. TI is one of the top 10 semiconductor companies worldwide, and its products are used in a wide range of applications, including in the automotive, industrial, personal electronics, communications equipment, and enterprise systems industries. The company is known for its innovation in analog chips and embedded processors, which are vital components in electronic devices.

Application

The LM2853MHX-3.3 is a step-down DC-DC converter, commonly used in applications requiring stable 3.3V power supply. It is suitable for battery-powered devices, portable electronics, communication equipment, industrial automation systems, and embedded systems. Its efficiency and compact design make it ideal for space-constrained applications, while its capability to provide a consistent output voltage supports sensitive electronic components.

Equivalent

The LM2853MHX-3.3 is a DC-DC buck converter from Texas Instruments. To find equivalent products, look for step-down regulators with similar output voltage (3.3V), current capabilities (2A), and package type. Possible alternatives include the LM2596-3.3 (Texas Instruments), LMR33630 (Texas Instruments), and AP1509-33 (Diodes Incorporated). Always verify specifications such as input voltage range, efficiency, and package to ensure compatibility with your application.

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