LM3620M5-4

Product Overview

Category

LM3620M5-4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage regulation and power management.

Characteristics

• LM3620M5-4 is a low dropout voltage regulator.
• It provides a stable output voltage even when the input voltage is slightly lower than the desired output voltage.
• The device operates with a low quiescent current, making it suitable for battery-powered applications.
• It has built-in protection features such as thermal shutdown and current limit.

Package

LM3620M5-4 is available in a small outline package (SOT-23-5) which is compact and easy to mount on circuit boards.

Essence

The essence of LM3620M5-4 lies in its ability to regulate voltage efficiently while consuming minimal power.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specified quantity of LM3620M5-4 ICs per package.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV at 100mA load
• Quiescent Current: 45µA
• Maximum Output Current: 500mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

LM3620M5-4 has five pins arranged as follows:

```

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

Functional Features

• Low dropout voltage ensures stable output even with low input voltage.
• Wide input voltage range allows compatibility with various power sources.
• Low quiescent current minimizes power consumption in standby mode.
• Thermal shutdown protection prevents overheating.
• Current limit protection safeguards against excessive current draw.

Advantages and Disadvantages

Advantages

• Efficient voltage regulation
• Compact package size
• Built-in protection features
• Wide input voltage range

Disadvantages

• Limited maximum output current (500mA)
• Noisy output at high frequencies

Working Principles

LM3620M5-4 utilizes a voltage reference, error amplifier, and pass transistor to regulate the output voltage. The error amplifier compares the feedback voltage (FB pin) with the reference voltage to adjust the pass transistor's conduction, maintaining a stable output voltage.

Detailed Application Field Plans

LM3620M5-4 finds applications in various electronic devices, including but not limited to: - Battery-powered portable devices - IoT devices - Wearable electronics - Consumer electronics - Industrial equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LM3620M5-4 are: - LM1117-3.3: A fixed 3.3V voltage regulator with a higher maximum output current of 800mA. - LP2985-33: A low dropout voltage regulator with a fixed 3.3V output and a maximum output current of 150mA. - MCP1702-3302E: A low dropout voltage regulator with a fixed 3.3V output and a maximum output current of 250mA.

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

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