MAX17122ETL+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency - Low quiescent current - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: TQFN-40

Essence: The MAX17122ETL+ is a power management IC designed for various applications that require efficient power conversion and management.

Packaging/Quantity: The MAX17122ETL+ is available in tape and reel packaging, with 250 units per reel.

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 0.8V to 0.9 x VIN
• Quiescent Current: 25µA
• Switching Frequency: 1MHz
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MAX17122ETL+ has the following pin configuration:

1. VIN: Input voltage pin
2. EN: Enable pin
3. FB: Feedback pin
4. SS/TR: Soft-start/Tracking pin
5. PGND: Power ground pin
6. LX: Switching node pin
7. AGND: Analog ground pin
8. VOUT: Output voltage pin

Functional Features

• High-efficiency step-down converter
• Adjustable output voltage through feedback pin
• Soft-start and tracking functionality
• Overcurrent protection with hiccup mode
• Thermal shutdown protection

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Overcurrent and thermal shutdown protection ensure safety

Disadvantages: - Limited to step-down conversion applications - Higher cost compared to non-integrated solutions

Working Principles

The MAX17122ETL+ is a step-down converter that uses a high-frequency switching regulator to efficiently convert the input voltage to a lower output voltage. It employs pulse-width modulation (PWM) to control the duty cycle of the switching transistor, regulating the output voltage based on the feedback received from the FB pin.

Detailed Application Field Plans

The MAX17122ETL+ is suitable for various applications, including but not limited to: 1. Industrial automation systems 2. Automotive electronics 3. Power supplies for consumer electronics 4. Battery-powered devices 5. LED lighting systems

Detailed and Complete Alternative Models

1. MAX17123ETL+: Similar to MAX17122ETL+, but with additional features such as adjustable soft-start time and external synchronization capability.
2. MAX17124ETL+: Step-up/step-down converter variant of MAX17122ETL+ for applications requiring both higher and lower output voltages.
3. MAX17125ETL+: Dual-output version of MAX17122ETL+ for applications requiring multiple regulated voltages.

These alternative models provide similar functionality with slight variations to cater to specific application requirements.

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