MIC2178-5.0YWM

Product Overview

Category

MIC2178-5.0YWM belongs to the category of voltage regulators.

Use

This product is used to regulate and stabilize voltage levels in electronic circuits.

Characteristics

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 5.0V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Low Quiescent Current: 120µA
• Thermal Shutdown Protection
• Short-Circuit Protection
• Adjustable Soft-Start
• Small Package Size: SOT-23-5

Package and Quantity

MIC2178-5.0YWM is available in a SOT-23-5 package. It is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 5.0V ±2%
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23-5

Pin Configuration

MIC2178-5.0YWM has the following pin configuration:

```

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| | --| V+ |-- --| |-- --| GND|-- --| |-- --| Vout|-- |____| ```

Pin Descriptions: - V+: Input Voltage - GND: Ground - Vout: Output Voltage

Functional Features

1. Wide Input Voltage Range: The MIC2178-5.0YWM can accept input voltages ranging from 4.5V to 16V, making it suitable for a variety of applications.
2. Stable Output Voltage: It provides a regulated output voltage of 5.0V ±2%, ensuring a stable power supply for connected devices.
3. Low Quiescent Current: With a quiescent current of only 120µA, the MIC2178-5.0YWM minimizes power consumption when in standby mode.
4. Thermal Shutdown Protection: The regulator includes built-in thermal shutdown protection, preventing damage due to excessive heat.
5. Short-Circuit Protection: It features short-circuit protection, safeguarding the circuit and the regulator from potential damage.
6. Adjustable Soft-Start: The soft-start feature allows for a controlled startup, reducing inrush current and protecting the connected components.

Advantages and Disadvantages

Advantages

• Wide input voltage range enables versatile application possibilities.
• Stable output voltage ensures reliable operation of connected devices.
• Low quiescent current minimizes power consumption.
• Thermal shutdown and short-circuit protection enhance safety and durability.
• Adjustable soft-start feature protects components during startup.

Disadvantages

• Limited maximum output current of 1A may not be sufficient for high-power applications.
• Dropout voltage of 300mV at 1A may result in some power loss.

Working Principles

MIC2178-5.0YWM is a linear voltage regulator that utilizes a control loop to maintain a constant output voltage. It compares the feedback voltage with a reference voltage and adjusts the pass transistor accordingly to regulate the output voltage. The device operates by dissipating excess energy as heat, which is why it has a dropout voltage and requires an input voltage higher than the desired output voltage.

Application Field Plans

The MIC2178-5.0YWM can be used in various applications, including but not limited to: - Battery-powered devices - Portable electronics - Automotive systems - Industrial control systems - Embedded systems

Alternative Models

Some alternative models that offer similar functionality to MIC2178-5.0YWM include: - LM317: A popular adjustable linear voltage regulator. - LT1084: A low dropout linear voltage regulator with higher output current capability. - TPS7A47: An ultra-low-noise linear voltage regulator suitable for sensitive applications.

These alternative models can be considered based on specific requirements and design constraints.

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