MAX1759EUB+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, Step-Down DC-DC Converter
• Package: µMAX® (5-Pin SOT23)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel (3000 pieces per reel)

Specifications

The MAX1759EUB+T is a high-efficiency, step-down DC-DC converter designed for power management applications. It operates over a wide input voltage range of 2.7V to 5.5V and provides an adjustable output voltage from 0.8V to VIN. The device can deliver up to 500mA of continuous output current.

Pin Configuration

The MAX1759EUB+T features a 5-pin SOT23 package with the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. FB: Feedback Voltage
4. EN: Enable Pin
5. VOUT: Output Voltage

Functional Features

• High Efficiency: The MAX1759EUB+T utilizes a synchronous rectification scheme, resulting in improved efficiency and reduced power dissipation.
• Adjustable Output Voltage: The device allows for easy adjustment of the output voltage through external resistors connected to the feedback pin.
• Low Quiescent Current: The quiescent current of the MAX1759EUB+T is typically as low as 17µA, making it suitable for battery-powered applications.
• Overcurrent Protection: The device incorporates overcurrent protection to safeguard against excessive load currents.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Adjustable output voltage provides flexibility in various applications. - Low quiescent current prolongs battery life. - Overcurrent protection ensures safe operation.

Disadvantages: - Limited output current may not be suitable for high-power applications. - SOT23 package may limit thermal dissipation in certain scenarios.

Working Principles

The MAX1759EUB+T operates as a step-down DC-DC converter using a pulse-width modulation (PWM) control scheme. It converts the input voltage to a lower, regulated output voltage by controlling the duty cycle of an internal power switch. The synchronous rectification scheme improves efficiency by reducing power losses during switching transitions.

Detailed Application Field Plans

The MAX1759EUB+T is commonly used in various battery-powered applications, such as portable devices, handheld instruments, and wireless communication devices. Its ability to provide an adjustable output voltage makes it suitable for powering different components within these systems, including microcontrollers, sensors, and displays.

Detailed and Complete Alternative Models

1. MAX1759ETM+: Similar to MAX1759EUB+T but packaged in a 12-pin TDFN package.
2. MAX1759EVKIT: Evaluation kit for MAX1759 series, providing a platform for testing and prototyping.

These alternative models offer similar functionality and performance characteristics to the MAX1759EUB+T, providing options for different package preferences or evaluation needs.

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