MAX1956ETI+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High-efficiency, step-down DC-DC converter - Low quiescent current - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection - Small form factor

Package: 28-pin TQFN (Thin Quad Flat No-Lead) package

Essence: The MAX1956ETI+ is a power management IC designed for high-efficiency step-down voltage conversion in various electronic devices.

Packaging/Quantity: The MAX1956ETI+ is available in tape and reel packaging with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 1.5A
• Quiescent Current: 40µA (typical)
• Switching Frequency: 1MHz (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1956ETI+ has a total of 28 pins. Here is the detailed pin configuration:

1. EN (Enable)
2. FB (Feedback)
3. AGND (Analog Ground)
4. LX (Switch Node)
5. PGND (Power Ground)
6. VOUT (Output Voltage)
7. VCC (Supply Voltage)
8. BST (Bootstrap)
9. SS (Soft-Start)
10. COMP (Compensation)
11. ILIM (Current Limit)
12. VIN (Input Voltage)
13. VIN (Input Voltage)
14. VIN (Input Voltage)
15. VIN (Input Voltage)
16. VIN (Input Voltage)
17. VIN (Input Voltage)
18. VIN (Input Voltage)
19. VIN (Input Voltage)
20. VIN (Input Voltage)
21. VIN (Input Voltage)
22. VIN (Input Voltage)
23. VIN (Input Voltage)
24. VIN (Input Voltage)
25. VIN (Input Voltage)
26. VIN (Input Voltage)
27. VIN (Input Voltage)
28. VIN (Input Voltage)

Functional Features

• High-efficiency step-down voltage conversion
• Adjustable output voltage for flexibility
• Overcurrent and thermal protection for enhanced safety
• Low quiescent current for power-saving operation
• Wide input voltage range for compatibility with various power sources
• Small form factor for space-constrained applications

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Adjustable output voltage allows for versatile use - Overcurrent and thermal protection ensure device safety - Wide input voltage range provides compatibility with different power sources - Small form factor enables usage in compact devices

Disadvantages: - Limited maximum output current of 1.5A may not be suitable for high-power applications - Lack of detailed pin descriptions in the datasheet can make initial setup challenging for inexperienced users

Working Principles

The MAX1956ETI+ operates as a step-down DC-DC converter, converting a higher input voltage to a lower output voltage efficiently. It utilizes a switching regulator topology to achieve high conversion efficiency. The IC incorporates a control circuitry that adjusts the duty cycle of the internal switch to regulate the output voltage. It also includes protection features such as overcurrent and thermal shutdown to safeguard the device and connected components.

Detailed Application Field Plans

The MAX1956ETI+ finds application in various electronic devices requiring efficient voltage conversion. Some potential application fields include: - Portable electronic devices (e.g., smartphones, tablets) - Battery-powered devices (e.g., portable gaming consoles, digital cameras) - IoT (Internet of Things) devices - Wearable devices - Industrial equipment

Detailed and Complete Alternative Models

1. MAX1956ETI: Similar to MAX1956ETI+, but without the "+" designation.
2. MAX1957ETI+: A higher-output current version of the MAX1956ETI+ with a maximum output current of 2A.
3. MAX1958ETI+: A similar power management IC with additional features such as adjustable soft-start and power-good indicator.

These alternative models provide options with varying specifications and additional features for different application requirements.

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