CAT4139TD-GT3

Product Overview

Category

CAT4139TD-GT3 belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for power management applications.

Characteristics

• High efficiency
• Low dropout voltage
• Adjustable output voltage
• Overcurrent protection
• Thermal shutdown protection

Package

CAT4139TD-GT3 is available in a small outline transistor (SOT) package.

Essence

The essence of CAT4139TD-GT3 lies in its ability to efficiently regulate and control power supply voltages.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing a specific quantity of CAT4139TD-GT3 ICs.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 500mA
• Dropout Voltage: 200mV at 500mA
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin
4. EN: Enable pin
5. VOUT: Output voltage pin

Functional Features

• Adjustable output voltage through external resistors
• Overcurrent protection prevents damage to the IC and connected components
• Thermal shutdown protection safeguards against overheating
• Low dropout voltage ensures efficient power conversion
• Enable pin allows for easy on/off control of the IC

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption
• Wide input voltage range enables versatile applications
• Compact SOT package saves board space
• Overcurrent and thermal protection enhance system reliability

Disadvantages

• Limited maximum output current may restrict certain high-power applications
• Dropout voltage may cause a slight voltage drop across the IC

Working Principles

CAT4139TD-GT3 operates as a linear voltage regulator. It takes an input voltage within the specified range and regulates it to a desired output voltage. The feedback pin (FB) is used to set the output voltage through external resistors. The enable pin (EN) controls the on/off state of the IC.

Detailed Application Field Plans

CAT4139TD-GT3 finds applications in various fields, including but not limited to: 1. Portable electronic devices 2. Battery-powered systems 3. IoT devices 4. Automotive electronics 5. Industrial control systems

Detailed and Complete Alternative Models

1. CAT4139: Similar specifications and features, different package type (SOT-23)
2. CAT4139-1: Lower dropout voltage, otherwise similar specifications and features
3. CAT4139-2: Higher maximum output current, otherwise similar specifications and features

These alternative models provide options based on specific requirements and preferences.

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