MAX14970ETP+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Voltage, Low Power Consumption
• Package: TQFN-20
• Essence: Power Supply Controller
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 36V
• Output Voltage Range: 0.8V to 34V
• Maximum Output Current: 1A
• Operating Temperature Range: -40°C to +125°C
• Switching Frequency: 500kHz
• Features: Overvoltage Protection, Undervoltage Lockout, Thermal Shutdown

Detailed Pin Configuration

The MAX14970ETP+T has a total of 20 pins. The pin configuration is as follows:

1. VIN: Input Voltage
2. GND: Ground
3. VCC: Power Supply
4. EN: Enable Pin
5. FB: Feedback Pin
6. SS/TR: Soft-Start/Tracking Pin
7. PG: Power Good Indicator
8. AGND: Analog Ground
9. COMP: Compensation Pin
10. BST: Bootstrap Pin
11. SW: Switch Node
12. LX: Inductor Connection
13. PGND: Power Ground
14. PGND: Power Ground
15. PGND: Power Ground
16. PGND: Power Ground
17. PGND: Power Ground
18. PGND: Power Ground
19. PGND: Power Ground
20. PGND: Power Ground

Functional Features

• Overvoltage Protection: Safeguards the circuit from excessive voltage levels.
• Undervoltage Lockout: Prevents operation when input voltage falls below a certain threshold.
• Thermal Shutdown: Shuts down the device to prevent damage due to excessive heat.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications. - High switching frequency enables efficient power conversion. - Compact TQFN-20 package saves board space. - Power good indicator provides system status information.

Disadvantages: - Maximum output current limited to 1A, may not be suitable for high-power applications. - Operating temperature range may restrict usage in extreme environments.

Working Principles

The MAX14970ETP+T is a power supply controller IC that regulates the output voltage based on the feedback received from the FB pin. It utilizes an internal oscillator to control the switching frequency of the power stage. The EN pin enables or disables the device, while the SS/TR pin controls the soft-start and tracking functions. The COMP pin is used for compensation purposes, ensuring stability in the control loop. The BST pin provides the necessary voltage for driving the high-side MOSFET switch.

Detailed Application Field Plans

The MAX14970ETP+T is commonly used in various power management applications, including but not limited to:

1. Industrial Automation: Control systems, motor drives, and robotics.
2. Automotive Electronics: Battery management systems, LED lighting, and infotainment systems.
3. Telecommunications: Power supplies for network equipment and base stations.
4. Consumer Electronics: Portable devices, smart home appliances, and audio/video equipment.

Detailed and Complete Alternative Models

1. MAX14971ETP+T: Similar specifications and features, but with a different pin configuration.
2. MAX14972ETP+T: Higher maximum output current (2A), suitable for higher power applications.
3. MAX14973ETP+T: Lower input voltage range (2.7V to 18V), ideal for low-power applications.

These alternative models provide flexibility in choosing the most suitable power supply controller based on specific requirements.

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