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MAX1673ESA+T

Name: MAX1673ESA+T
Rating: 4.7 (12 reviews)

IC REG CHRG PUMP ADJ 125MA 8SOIC

Производитель
Мфр. Часть #MAX1673ESA+T
Пакет
Лист данных MAX1673ESA+T DataSheet
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Спецификации

Part Status	Active
Function	Step-Down
Output Configuration	Negative
Topology	Charge Pump
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	2V
Voltage - Input (Max)	5.5V
Voltage - Output (Min/Fixed)	-1.5V
Voltage - Output (Max)	-5.5V
Current - Output	125mA
Frequency - Switching	350kHz
Synchronous Rectifier	No
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
Base Product Number	MAX1673

Обзор

Description

The MAX1673ESA+T is a high-efficiency step-down (buck) voltage regulator designed by Maxim Integrated (now part of Analog Devices). It operates from an input voltage range of 2.7V to 5.5V and can deliver an output voltage of 1.5V, 1.8V, or adjustable between these levels, with a maximum output current of 1A. The device features a high switching frequency, which allows for smaller external components, making it suitable for space-constrained applications.
Key features include low quiescent current, integrated power MOSFETs, and thermal shutdown protection. It also supports a range of applications, including portable devices, power management in battery-operated systems, and consumer electronics. The MAX1673ESA+T is available in a 5-pin TSOT-23 package and is noted for its reliability and efficiency, optimizing battery life in various electronic devices.

Features

The MAX1673ESA+T is a high-efficiency, step-up (boost) DC-DC converter designed for powering white LEDs or other loads. Key features include:
1. Input Voltage Range: Operates from 2.0V to 5.5V, making it suitable for single-cell lithium-ion batteries.
2. Output Current: Capable of delivering up to 300mA of output current, allowing for multiple LED connections.
3. Adjustable Output Voltage: Supports an adjustable output voltage up to 28V.
4. High Efficiency: Achieves efficiencies of up to 85% under load, enhancing battery life.
5. Internal Switch: Integrated power switch reduces component count and PCB space.
6. Fixed Frequency: Operates at a fixed switching frequency of 1.2MHz, which aids in reducing output ripple.
7. Soft-Start: Built-in soft-start feature minimizes inrush current during startup.
8. Thermal Shutdown: Includes thermal protection to prevent overheating.
The MAX1673ESA+T is ideal for portable applications where efficient power conversion and compact size are critical.

Package

The MAX1673ESA+T is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) format. This surface-mount package is designed for easy integration into electronic circuits, featuring a compact design that facilitates space-saving in applications.

Pinout

The MAX1673ESA+T is a voltage regulator integrated circuit (IC) that features a 16-pin count in the SOIC package. Its primary function is to provide high-efficiency power conversion, specifically designed for low-voltage applications.
Key functions include:
1. Voltage Regulation: It can step down input voltages to a stable output voltage.
2. Multiple Outputs: It typically supports multiple output voltages from a single input.
3. Efficiency: High efficiency helps to minimize power loss and heat generation.
4. Low Quiescent Current: Ideal for battery-powered applications, ensuring longer battery life.
5. Adjustable Output Voltage: The output voltage can be adjusted using external resistors.
Overall, the MAX1673ESA+T is designed for applications requiring reliable power management, commonly used in portable devices, sensors, and other electronic systems.

Manufacturer

The MAX1673ESA+T is manufactured by Maxim Integrated, which is a subsidiary of Analog Devices, Inc. Maxim Integrated is a semiconductor company that specializes in designing and manufacturing integrated circuits (ICs) for various applications, including power management, signal processing, and communications. The company is known for its high-performance analog and mixed-signal ICs, catering to industries such as automotive, industrial, medical, and consumer electronics. Maxim Integrated focuses on providing innovative solutions that enhance the functionality and efficiency of electronic devices.

Application

The MAX1673ESA+T is a high-efficiency, step-down voltage regulator primarily used in portable devices, battery-powered applications, and handheld electronics. It’s suitable for powering microcontrollers, sensors, displays, and other low-voltage components in consumer electronics, medical devices, and industrial equipment. Its features include low quiescent current and high output current capability, making it ideal for applications requiring efficient power management.

Equivalent

The MAX1673ESA+T is a voltage regulator chip. Equivalent products include the MCP1700, LM1117, and LP2985. For drop-in replacements, consider the MIC5205 or TPS783. Always check the specific requirements such as output voltage, current rating, and package type to ensure compatibility.

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