CAT6218-250TDGT3

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Thermal shutdown protection - Short-circuit current limit - Overcurrent protection - Reverse battery protection

Package: SOT-23-5

Essence: The CAT6218-250TDGT3 is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The CAT6218-250TDGT3 is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage: 2.5V
• Output Current: Up to 150mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The CAT6218-250TDGT3 has the following pin configuration:

```

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| | --| V+ |-- --| |-- --| GND|-- --| |-- --| VOUT|-- |____| ```

Pin Descriptions: - V+: Input voltage pin - GND: Ground pin - VOUT: Output voltage pin

Functional Features

1. Low Dropout Voltage: The CAT6218-250TDGT3 exhibits a low dropout voltage, ensuring efficient power conversion even when the input voltage is close to the desired output voltage.
2. High Output Current Capability: With an output current capability of up to 150mA, this voltage regulator can handle the power requirements of a wide range of electronic devices.
3. Thermal Shutdown Protection: The IC incorporates a thermal shutdown feature that protects it from overheating, ensuring its reliability and longevity.
4. Short-Circuit Current Limit: In the event of a short circuit, the CAT6218-250TDGT3 limits the current to prevent damage to the device or connected components.
5. Overcurrent Protection: The voltage regulator includes overcurrent protection, safeguarding against excessive current flow and potential damage.
6. Reverse Battery Protection: The IC is designed with reverse battery protection, preventing damage in case of accidental reverse polarity connection.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - High output current capability meets the demands of various electronic devices. - Thermal shutdown protection enhances reliability. - Short-circuit current limit and overcurrent protection prevent damage. - Reverse battery protection safeguards against reverse polarity connection.

Disadvantages: - Limited to an output voltage of 2.5V.

Working Principles

The CAT6218-250TDGT3 operates as a linear voltage regulator. It regulates the input voltage to a stable 2.5V output voltage by utilizing a pass transistor and feedback control mechanism. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The CAT6218-250TDGT3 finds applications in various electronic devices that require a stable 2.5V power supply. Some common application fields include: - Mobile phones - Portable media players - Digital cameras - Wireless communication devices - Battery-powered devices

Alternative Models

1. LM1117-2.5: This voltage regulator offers similar specifications and features to the CAT6218-250TDGT3.
2. MCP1700-250: Another alternative with comparable characteristics and pin configuration.
3. LP2985-2.5: This IC provides a stable 2.5V output voltage and shares similarities with the CAT6218-250TDGT3.

Note: The above alternative models are suggested based on their similarity in specifications and functionality, but it is recommended to refer to the respective datasheets for detailed information.

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