MAX1745EUB

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MAX1745EUB

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IC REG CTRLR BUCK 10UMAX

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規格

屬性 價值
Supplier Analog Devices Inc./Maxim Integrated
Package Tube
ProductStatus Active
OutputType Transistor Driver
Function Step-Down
OutputConfiguration Positive
Topology Buck
NumberofOutputs 1
OutputPhases 1
Voltage-Supply(Vcc/Vdd) 4.5V ~ 36V
Frequency-Switching Up to 330kHz
DutyCycle(Max) 100%
SynchronousRectifier No
ClockSync No
ControlFeatures Enable
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 10-TFSOP, 10-MSOP (0.118, 3.00mm Width)

概述

Description

The MAX1745EUB is a DC-DC step-down converter designed by Maxim Integrated (now part of Analog Devices) for efficient power management in electronic devices. It features a programmable output voltage, allowing for flexibility across different applications. The device operates with an input voltage range typically between 2.6V and 5.5V, making it suitable for battery-powered devices and portable electronics.
The MAX1745EUB is known for its high efficiency, often exceeding 90%, which helps in minimizing heat generation and extending battery life. It uses a pulse-width modulation (PWM) control scheme to maintain output voltage regulation under varying load conditions. The converter also includes protections like over-current limiting and thermal shutdown to safeguard against fault conditions.
Packaged in a compact TSSOP footprint, the MAX1745EUB is ideal for space-constrained applications. Its low quiescent current and the ability to enter a low-power shutdown mode further enhance its suitability for power-sensitive designs. Overall, the MAX1745EUB provides a reliable and versatile solution for efficient power conversion in modern electronic systems.

Equivalent

The MAX1745EUB is a step-down DC-DC converter. Equivalent products include:
1. Texas Instruments TPS5430
2. Microchip MCP16301
3. ON Semiconductor NCP3170
4. Linear Technology (now Analog Devices) LT1765
5. Richtek RT8250
These are also step-down converters with similar voltage and current ratings, suitable for similar applications. Always verify the specifications and pin compatibility before substituting in a design.

Features

The MAX1745EUB is a linear battery charger IC designed for single-cell lithium-ion (Li+) batteries. Key features include:
1. Input Voltage Range: It supports a wide input voltage range, making it suitable for various applications.
2. Charging Current: Programmable charging current allows customized and efficient charging processes.
3. Safety Features: It incorporates safety measures such as thermal regulation and overvoltage protection to ensure safe and reliable operation.
4. Status Indicators: Built-in LED drivers provide clear status indication for charging and fault conditions.
5. Compact Package: Available in a small, 10-pin µMAX package, the MAX1745EUB is ideal for space-constrained applications.
6. Temperature Regulation: The device is equipped with thermal regulation to prevent overheating during charging.
7. Charge Termination: It features automatic charge termination to prevent battery overcharge.
These features make the MAX1745EUB suitable for portable devices and applications requiring efficient and safe battery charging solutions.

Pinout

The MAX1745EUB is a high-efficiency, step-down DC-DC converter. It comes in a 10-pin µMAX package. Here is a brief overview of its pin functions:
1. LX: Inductor connection for the internal switch.
2. GND: Ground connection.
3. FB: Feedback input for output voltage regulation.
4. OUT: Output voltage sense input.
5. IN: Supply voltage input.
6. SHDN: Shutdown control input (active low).
7. COMP: Compensation node for stability control.
8. SS: Soft-start control input to prevent inrush current.
9. PGOOD: Power-good indicator output.
10. REF: Reference voltage output.
The MAX1745EUB is commonly used for generating a regulated output voltage from a higher input voltage, often in applications like portable devices or other electronics requiring efficient power management.

Manufacturer

The MAX1745EUB is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated was known for designing, manufacturing, and selling analog and mixed-signal integrated circuits. In 2021, Analog Devices, a leading global high-performance semiconductor company specializing in data conversion, signal processing, and power management technology, acquired Maxim Integrated. This acquisition expanded Analog Devices' portfolio and capabilities in various sectors, including industrial, automotive, communications, and consumer markets.

Application

The MAX1745EUB is a DC-DC step-down converter IC commonly used in applications requiring efficient voltage regulation. Key application areas include portable devices, such as smartphones and tablets, where space and power efficiency are critical. It's also used in computing peripherals, telecommunications equipment, and consumer electronics for powering microcontrollers, DSPs, and other low-voltage digital circuits. Its ability to deliver high efficiency at low output currents makes it suitable for battery-powered applications. Additionally, it finds use in industrial and networking equipment where precise voltage regulation is needed.

Package

The MAX1745EUB is available in a 10-pin µMAX package. This compact package is suitable for space-constrained applications, offering efficient thermal performance and ease of integration in various circuit designs.

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