MIC2951-3.3YMM

Product Overview

Category

MIC2951-3.3YMM belongs to the category of voltage regulators.

Use

It is primarily used for regulating and stabilizing voltage in electronic circuits.

Characteristics

• Input Voltage Range: 4V to 26V
• Output Voltage: 3.3V
• Maximum Output Current: 500mA
• Low Dropout Voltage: 380mV at 500mA
• Low Quiescent Current: 120µA
• Thermal Shutdown Protection
• Short Circuit Current Limiting
• Overcurrent Protection

Package

MIC2951-3.3YMM comes in a small SOT-223 package, which is suitable for surface mount applications.

Essence

The essence of MIC2951-3.3YMM lies in its ability to provide a stable and regulated output voltage of 3.3V, even when the input voltage varies within a specified range.

Packaging/Quantity

This product is typically available in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4V to 26V
• Output Voltage: 3.3V ±2%
• Maximum Output Current: 500mA
• Dropout Voltage: 380mV at 500mA
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-223

Detailed Pin Configuration

MIC2951-3.3YMM has the following pin configuration:

1. GND (Ground)
2. VOUT (Output Voltage)
3. VIN (Input Voltage)
4. ADJ (Adjustment Pin)

Functional Features

1. Voltage Regulation: The MIC2951-3.3YMM ensures a stable output voltage of 3.3V, regardless of variations in the input voltage.
2. Low Dropout Voltage: With a dropout voltage of only 380mV at 500mA, this regulator minimizes power dissipation and improves efficiency.
3. Low Quiescent Current: The device operates with a low quiescent current of 120µA, reducing power consumption.
4. Thermal Shutdown Protection: MIC2951-3.3YMM incorporates thermal shutdown protection to prevent damage due to excessive temperature.
5. Short Circuit Current Limiting: It features short circuit current limiting to protect the device and the connected circuitry from excessive current flow.
6. Overcurrent Protection: The regulator includes overcurrent protection to safeguard against excessive load currents.

Advantages and Disadvantages

Advantages

• Stable and regulated output voltage
• Low dropout voltage for improved efficiency
• Low quiescent current for reduced power consumption
• Thermal shutdown protection for enhanced reliability
• Short circuit current limiting for added safety
• Overcurrent protection for device and circuit protection

Disadvantages

• Maximum output current limited to 500mA
• Limited input voltage range (4V to 26V)

Working Principles

MIC2951-3.3YMM is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a constant output voltage of 3.3V.

Detailed Application Field Plans

MIC2951-3.3YMM finds applications in various electronic devices and circuits where a stable and regulated 3.3V power supply is required. Some common application areas include:

1. Microcontrollers and microprocessors
2. Digital logic circuits
3. Communication systems
4. Battery-powered devices
5. Embedded systems
6. Industrial control systems

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and package type.
2. LT1763-3.3: Another alternative offering low dropout voltage and high output current capability.
3. TPS73633: An alternative with a wide input voltage range and low quiescent current.

These alternatives can be considered based on specific requirements and availability.

In conclusion, MIC2951-3.3YMM is a voltage regulator that provides stable and regulated 3.3V output voltage. It offers low dropout voltage, low quiescent current, and various protection features. This device finds applications in diverse electronic circuits and has alternative models available for consideration.