MAX1565ETJ+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX1565ETJ+ is a high-efficiency, step-up DC-DC converter designed for use in portable devices such as smartphones, tablets, and digital cameras. It provides a regulated output voltage from a single lithium-ion (Li+) battery or other power sources.

Characteristics: - High efficiency: The MAX1565ETJ+ offers up to 95% efficiency, ensuring optimal power conversion. - Small package size: This IC comes in a compact Thin SOT23-6 package, making it suitable for space-constrained applications. - Low quiescent current: With a low quiescent current of only 20µA, the MAX1565ETJ+ minimizes power consumption during standby mode. - Adjustable output voltage: The output voltage can be adjusted using external resistors, allowing flexibility in different applications.

Package: Thin SOT23-6

Essence: The MAX1565ETJ+ is an integrated circuit that efficiently steps up the input voltage to provide a regulated output voltage for portable electronic devices.

Packaging/Quantity: The MAX1565ETJ+ is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 3.3V to 5.5V
• Maximum Output Current: 200mA
• Switching Frequency: 1.2MHz
• Quiescent Current: 20µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1565ETJ+ has six pins arranged as follows:

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| | --| VIN GND |-- Pin 1: VIN (Input Voltage) --| EN FB |-- Pin 2: EN (Enable), Pin 3: FB (Feedback) --| LX SW |-- Pin 4: LX (Switch Node), Pin 5: SW (Switching Node) --| PGND VOUT|-- Pin 6: PGND (Power Ground), Pin 7: VOUT (Output Voltage) |___________| ```

Functional Features

• High Efficiency: The MAX1565ETJ+ utilizes a synchronous rectification architecture, resulting in minimal power loss and high efficiency.
• Soft-Start Function: This IC incorporates a soft-start feature to prevent excessive inrush current during startup, ensuring stable operation.
• Overcurrent Protection: The MAX1565ETJ+ includes overcurrent protection to safeguard the circuit from damage caused by excessive load currents.
• Thermal Shutdown: In case of excessive temperature, the IC automatically shuts down to prevent overheating and potential damage.

Advantages and Disadvantages

Advantages: - High efficiency leads to longer battery life. - Compact package size allows for easy integration into portable devices. - Adjustable output voltage provides versatility for different applications. - Soft-start function prevents startup issues. - Overcurrent protection and thermal shutdown enhance safety.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Requires external resistors for output voltage adjustment.

Working Principles

The MAX1565ETJ+ operates as a step-up DC-DC converter. It takes an input voltage within the range of 2.7V to 5.5V and boosts it to a regulated output voltage between 3.3V and 5.5V. The IC uses a synchronous rectification architecture to minimize power loss and maximize efficiency. It employs pulse-width modulation (PWM) techniques to control the switching of the internal MOSFETs, ensuring stable and efficient power conversion.

Detailed Application Field Plans

The MAX1565ETJ+ is commonly used in various portable electronic devices that require a regulated voltage higher than the input source. Some typical applications include: - Smartphones - Tablets - Digital cameras - Portable media players - Handheld gaming devices

Detailed and Complete Alternative Models

1. MAX756: This IC offers similar functionality to the MAX1565ETJ+ but with a higher maximum output current of 500mA.
2. MAX1573: A step-up DC-DC converter with an integrated USB charger detection feature, suitable for charging portable devices from USB power sources.
3. MAX1724: This IC combines a step-up DC-DC converter with a linear regulator, providing both high efficiency and low noise output voltage.

These alternative models offer different specifications and features, allowing designers to choose the most suitable option based on their specific requirements.

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