MAX1674EUA+T

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MAX1674EUA+T

IC REG BST ADJ/PROG 750MA 8UMAX

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規格

Package Tape & Reel (TR)
ProductStatus Obsolete
Function Step-Up
OutputConfiguration Positive
Topology Boost
OutputType Adjustable (Programmable)
NumberofOutputs 1
Voltage-Input(Min) 0.7V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 2V (3.3V, 5V)
Voltage-Output(Max) 5.5V
Current-Output 750mA (Switch)
Frequency-Switching Up to 500Hz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)

概述

Description

The MAX1674EUA+T is a step-up DC-DC converter from Maxim Integrated, designed for efficient voltage boosting applications. It operates with a low input voltage starting from 0.7V, making it suitable for devices powered by single-cell batteries. The component provides a fixed output voltage option, typically utilized to step up battery voltages to higher levels necessary for powering microcontrollers, sensors, or other electronic components.
Key features of the MAX1674EUA+T include high efficiency, low quiescent current, and a compact form factor, which is ideal for portable and space-constrained applications. It integrates an internal MOSFET switch and synchronous rectifier, eliminating the need for external diodes, thereby reducing component count and design complexity.
The MAX1674EUA+T comes in an 8-pin µMAX package, offering a balance between performance and size. It's commonly used in consumer electronics, portable medical devices, and other battery-powered systems where extended battery life and efficient power management are critical.

Features

The MAX1674EUA+T is a high-efficiency, step-up DC-DC converter designed by Maxim Integrated. It is well-suited for battery-powered applications, such as portable devices, due to its ultra-high efficiency and low supply current. Key features include:
1. Input Voltage Range: Operates with input voltages from 0.7V to 5.5V, allowing it to be powered by single-cell or dual-cell alkaline, NiCd, or NiMH batteries.
2. Output Voltage: Capable of boosting to an output voltage of 3.3V or 5V, selectable via a single pin.
3. Efficiency: Achieves efficiencies up to 95%, significantly extending battery life.
4. Quiescent Current: Ultra-low quiescent current of 16µA, reducing power consumption during idle periods.
5. Shutdown Mode: Includes a shutdown feature that reduces supply current to less than 1µA.
6. Package: Available in a small, 8-pin µMAX package for compact applications.
7. Protection: Includes built-in features like current limiting and thermal shutdown for enhanced reliability.
These features make the MAX1674EUA+T suitable for use in compact, power-sensitive devices requiring efficient power management solutions.

Package

The MAX1674EUA+T is typically available in an 8-pin µMAX package. This package type is compact, suitable for space-constrained applications, and supports the component's function as a step-up DC-DC converter.

Pinout

The MAX1674EUA+T is a step-up DC-DC converter integrated circuit, which is typically used to boost lower input voltages to higher output voltages. It is packaged in an 8-pin µMAX package. The pin functions are as follows:
1. LX: Drain of the internal N-channel MOSFET; connect the inductor here.
2. GND: Ground reference for the circuit.
3. FB: Feedback input for voltage regulation; connect to the output voltage divider.
4. SHDN: Shutdown control; drive low to disable the device and reduce quiescent current.
5. OUT: Output voltage sense; connect to the output capacitor.
6. REF: Reference voltage output, typically used for setting the feedback voltage divider.
7. IN: Input supply voltage; connect to the power source.
8. N.C.: No connection; not internally connected.
This configuration allows the MAX1674 to efficiently boost input voltages ranging from about 0.7V to higher voltages suitable for powering various electronic devices.

Manufacturer

The MAX1674EUA+T is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated, prior to its acquisition, was a company known for designing, manufacturing, and selling analog and mixed-signal integrated circuits. The company specialized in power management solutions, sensor interfaces, battery management, and integrated circuits for consumer electronics, telecommunications, automotive, and industrial applications. In 2021, Maxim Integrated was acquired by Analog Devices, a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices serves a wide array of industries, including communications, healthcare, automotive, and industrial automation, focusing on innovative solutions for complex engineering challenges.

Application

The MAX1674EUA+T is a step-up DC-DC converter designed for battery-powered devices. Its application areas include portable electronics such as smartphones, digital cameras, PDAs, and other handheld devices where efficient power conversion and extended battery life are essential. It is also used in low-power applications requiring a compact solution for boosting voltage from single-cell batteries.

Equivalent

The MAX1674EUA+T is a step-up DC-DC converter by Maxim Integrated. Equivalent products include the LT1615 from Analog Devices, the TPS61070 from Texas Instruments, and the MCP1640 from Microchip Technology. These chips offer similar functionality for boosting voltage in low-power applications, but be sure to verify specifications and pin compatibility for your specific use case.

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