LM3525MX-L

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: SOT-23-5

Essence: The LM3525MX-L is a voltage regulator IC that provides a regulated output voltage from an input voltage source. It is commonly used in electronic devices to ensure stable and reliable power supply.

Packaging/Quantity: The LM3525MX-L is available in a SOT-23-5 package, which contains one IC per package.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV at 100mA
• Output Current: Up to 500mA
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM3525MX-L has the following pin configuration:

```

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| | --| EN GND |-- Pin 1: Enable (EN) --| VIN VOUT |-- Pin 2: Input Voltage (VIN) / Output Voltage (VOUT) --| FB NC |-- Pin 3: Feedback (FB) / No Connection (NC) --| GND NC |-- Pin 4: Ground (GND) / No Connection (NC) --| NC NC |-- Pin 5: No Connection (NC) |___________| ```

Functional Features

• Low Dropout Voltage: The LM3525MX-L has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 500mA, the LM3525MX-L can provide sufficient power for various electronic devices.
• Adjustable Output Voltage: The output voltage can be adjusted within the range of 1.2V to 5.5V, providing flexibility in different applications.
• Thermal Shutdown Protection: The IC includes thermal shutdown protection, which prevents damage due to excessive temperature.
• Short-Circuit Current Limit: The LM3525MX-L has built-in short-circuit current limiting, protecting the device and the circuit from damage in case of a short circuit.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation. - High output current capability meets the power requirements of various devices. - Adjustable output voltage provides flexibility in different applications. - Thermal shutdown protection prevents damage due to overheating. - Short-circuit current limit protects the device and the circuit.

Disadvantages: - Limited input voltage range (2.5V to 6.5V). - Quiescent current of 75µA may affect battery life in low-power applications.

Working Principles

The LM3525MX-L is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the feedback voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized by using a low dropout voltage regulator architecture.

Detailed Application Field Plans

The LM3525MX-L can be used in various applications, including but not limited to: - Battery-powered devices - Portable electronics - Wireless communication systems - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the LM3525MX-L include: - LM1117: A low dropout voltage regulator with adjustable output voltage. - LM317: A versatile linear voltage regulator with adjustable output voltage and current limiting capabilities. - LT1763: A high-performance, low dropout voltage regulator with adjustable output voltage and low quiescent current.

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.

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