MAX1574ETB+TG104

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Power Management
• Characteristics:
  • High efficiency voltage regulator
  • Low dropout voltage
  • Adjustable output voltage
  • Thermal shutdown protection
• Package: 24-TQFN (4x4)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape & Reel (3000 pieces)

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 1.2V to 3.3V
• Output Current: 500mA
• Quiescent Current: 40µA
• Dropout Voltage: 120mV at 500mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1574ETB+TG104 has a total of 24 pins, which are configured as follows:

1. VOUT
2. GND
3. FB
4. EN
5. SS
6. COMP
7. AGND
8. PGND
9. BST
10. LX
11. LX
12. LX
13. LX
14. LX
15. LX
16. LX
17. LX
18. LX
19. LX
20. LX
21. LX
22. LX
23. LX
24. VIN

Functional Features

• High efficiency voltage regulation for various applications
• Adjustable output voltage to meet specific requirements
• Low dropout voltage ensures stable operation even with low input voltages
• Thermal shutdown protection prevents damage due to excessive heat

Advantages and Disadvantages

Advantages

• High efficiency results in reduced power consumption
• Adjustable output voltage allows for flexibility in design
• Low dropout voltage ensures stable operation in low voltage conditions
• Thermal shutdown protection prevents damage from overheating

Disadvantages

• Limited output current of 500mA may not be sufficient for high-power applications
• Operating temperature range of -40°C to +85°C may not be suitable for extreme environments

Working Principles

The MAX1574ETB+TG104 is a voltage regulator that takes an input voltage ranging from 2.7V to 5.5V and provides an adjustable output voltage between 1.2V and 3.3V. It achieves high efficiency by minimizing the dropout voltage, resulting in reduced power dissipation.

The device utilizes a feedback mechanism to regulate the output voltage. The FB pin is connected to a resistive divider network that sets the desired output voltage. The EN pin enables or disables the regulator, while the SS pin controls the soft-start time.

The MAX1574ETB+TG104 also incorporates thermal shutdown protection, which shuts down the regulator if the temperature exceeds a certain threshold, preventing damage to the device.

Detailed Application Field Plans

The MAX1574ETB+TG104 is commonly used in various applications where efficient voltage regulation is required. Some of the typical application fields include:

1. Battery-powered devices: The low dropout voltage and adjustable output voltage make it suitable for portable electronics such as smartphones, tablets, and wearable devices.
2. Industrial equipment: The device's wide input voltage range and thermal shutdown protection make it ideal for use in industrial automation systems, motor control, and power supplies.
3. Automotive electronics: The regulator's operating temperature range and high efficiency make it suitable for automotive applications such as infotainment systems, lighting, and sensors.

Detailed and Complete Alternative Models

1. LM1117-3.3: This voltage regulator offers a fixed output voltage of 3.3V and a maximum output current of 800mA.
2. LT1763-3.3: This low dropout voltage regulator provides a fixed output voltage of 3.3V and a maximum output current of 500mA.
3. TPS7A3301: This adjustable voltage regulator offers an output voltage range of 1.2V to 3.3V and a maximum output current of 500mA.

These alternative models provide similar functionality and can be considered as alternatives to the MAX1574ETB+TG104 based on specific application requirements.

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