MP2009EE-3.3-LF-Z

Overview

Product Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Overcurrent protection

Package: LF SOT-223

Essence: The MP2009EE-3.3-LF-Z is a voltage regulator IC designed to provide a stable and regulated output voltage.

Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 4V to 18V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 300mV at 500mA
• Output Current: Up to 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MP2009EE-3.3-LF-Z has the following pin configuration:

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| | --| VIN GND |-- Pin 1: Input Voltage (VIN) --| VOUT EN |-- Pin 2: Output Voltage (VOUT) --| NC NC |-- Pin 3: Not Connected (NC) --| PGND FB |-- Pin 4: Power Ground (PGND) / Feedback (FB) |___________| ```

Functional Features

1. Low Dropout Voltage: The MP2009EE-3.3-LF-Z exhibits a low dropout voltage, allowing it to regulate the output voltage 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 1A, this voltage regulator can handle a wide range of load requirements.

3. Adjustable Output Voltage: The output voltage can be adjusted within the specified range (1.2V to 5.5V) by using external resistors.

4. Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.

5. Overcurrent Protection: The MP2009EE-3.3-LF-Z includes overcurrent protection, safeguarding the circuit from excessive current flow.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for versatile applications - Adjustable output voltage allows flexibility - Thermal shutdown and overcurrent protection enhance reliability

Disadvantages: - Limited input voltage range (4V to 18V) - Quiescent current may affect power consumption in low-power applications

Working Principles

The MP2009EE-3.3-LF-Z operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. The feedback pin (FB) is used to sense the output voltage and adjust the pass transistor accordingly. By comparing the output voltage with a reference voltage, the IC adjusts the pass transistor to maintain a stable output voltage.

Detailed Application Field Plans

The MP2009EE-3.3-LF-Z finds application in various fields, including but not limited to: - Power supplies for microcontrollers and other digital circuits - Battery-powered devices requiring regulated voltage - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and package options.
2. LT1086-3.3: Offers higher output current capability and wider input voltage range.
3. TPS79633: Provides low dropout voltage and adjustable output voltage.

These alternative models can be considered based on specific application requirements and availability.

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