MAX1793EUE20+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
• Package: 20-Pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 28V
• Output Voltage Range: 1.25V to 26V
• Output Current: Up to 500mA
• Quiescent Current: 40µA (typical)
• Switching Frequency: 1MHz (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1793EUE20+ has a 20-pin TSSOP package with the following pin configuration:

1. EN - Enable Input
2. FB - Feedback Input
3. GND - Ground
4. SW - Switch Node
5. PGND - Power Ground
6. LX - Inductor Connection
7. LX - Inductor Connection
8. LX - Inductor Connection
9. LX - Inductor Connection
10. LX - Inductor Connection
11. LX - Inductor Connection
12. LX - Inductor Connection
13. LX - Inductor Connection
14. LX - Inductor Connection
15. LX - Inductor Connection
16. LX - Inductor Connection
17. LX - Inductor Connection
18. LX - Inductor Connection
19. LX - Inductor Connection
20. VIN - Input Voltage

Functional Features

• High efficiency voltage regulator for various applications
• Low quiescent current for power-saving operation
• Wide input voltage range allows flexibility in power supply selection
• Integrated protection features such as thermal shutdown and overcurrent protection

Advantages and Disadvantages

Advantages

• High efficiency results in reduced power consumption
• Low quiescent current prolongs battery life
• Wide input voltage range provides versatility in power source selection
• Integrated protection features enhance system reliability

Disadvantages

• Limited output current capability (up to 500mA)
• Requires external components for proper operation
• Relatively small package size may require careful PCB layout design

Working Principles

The MAX1793EUE20+ is a voltage regulator that converts an input voltage within the range of 2.5V to 28V into a regulated output voltage between 1.25V and 26V. It utilizes a switching regulator architecture to achieve high efficiency and low quiescent current.

The device operates by controlling the duty cycle of an internal switch, which regulates the energy transfer from the input to the output. The feedback loop continuously monitors the output voltage and adjusts the duty cycle to maintain a stable output voltage despite variations in the input voltage and load conditions.

Detailed Application Field Plans

The MAX1793EUE20+ is suitable for various applications where efficient voltage regulation is required. Some potential application fields include:

1. Battery-powered devices: Portable electronics, handheld instruments, and wireless communication devices can benefit from the low quiescent current and wide input voltage range of the MAX1793EUE20+.
2. Industrial equipment: The device's high efficiency and integrated protection features make it suitable for powering industrial control systems, sensors, and actuators.
3. Automotive electronics: The wide input voltage range and compact package of the MAX1793EUE20+ make it suitable for automotive applications such as infotainment systems, lighting controls, and power management modules.

Detailed and Complete Alternative Models

• MAX1793EUE25+: Similar to MAX1793EUE20+, but with a 2.5V output voltage option.
• MAX1793EUE33+: Similar to MAX1793EUE20+, but with a 3.3V output voltage option.
• MAX1793EUE50+: Similar to MAX1793EUE20+, but with a 5V output voltage option.
• MAX1793EUE12+: Similar to MAX1793EUE20+, but with a 12V output voltage option.

These alternative models provide different output voltage options to cater to specific application requirements while maintaining the same essential features and characteristics as the MAX1793EUE20+.

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