MIC4834YMM

MIC4834YMM

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Thermal shutdown protection - Short-circuit current limiting - Adjustable output voltage - Small package size

Package: 8-pin MSOP (Mini Small Outline Package)

Essence: The MIC4834YMM is a voltage regulator IC that provides a regulated output voltage from an unregulated input voltage. It is designed to deliver high output current with low dropout voltage, making it suitable for various applications.

Packaging/Quantity: The MIC4834YMM is available in tape and reel packaging, with 3,000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.25V to 5.5V
• Dropout Voltage: 200mV at 500mA
• Output Current: Up to 500mA
• Quiescent Current: 120µA
• Line Regulation: 0.02%/V
• Load Regulation: 0.05%/mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC4834YMM has the following pin configuration:

```

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| | --| EN GND |-- Pin 1: Enable (EN) --| FB OUT |-- Pin 2: Feedback (FB) --| VIN NC |-- Pin 3: Input Voltage (VIN) --| NC NC |-- Pin 4: Not Connected (NC) --| NC NC |-- Pin 5: Not Connected (NC) --| NC NC |-- Pin 6: Not Connected (NC) --| NC NC |-- Pin 7: Not Connected (NC) --| VOUT NC |-- Pin 8: Output Voltage (VOUT) |___________| ```

Functional Features

• Low Dropout Voltage: The MIC4834YMM has a low dropout voltage of only 200mV at 500mA output current, 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 MIC4834YMM can power a wide range of devices and components.

• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents overheating and damage to the device under excessive operating conditions.

• Short-Circuit Current Limiting: The MIC4834YMM features short-circuit current limiting, ensuring that excessive current flow during a short circuit does not damage the IC.

• Adjustable Output Voltage: The output voltage of the MIC4834YMM can be adjusted within a range of 1.25V to 5.5V, providing flexibility for various applications.

• Small Package Size: The IC is housed in an 8-pin MSOP package, which is compact and suitable for space-constrained designs.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for powering various devices - Thermal shutdown protection prevents overheating - Short-circuit current limiting protects the IC - Adjustable output voltage provides flexibility - Compact package size saves space in designs

Disadvantages: - Limited input voltage range (2.5V to 6.5V) - Quiescent current of 120µA may affect battery-powered applications

Working Principles

The MIC4834YMM operates as a linear voltage regulator. It takes an unregulated input voltage (VIN) and regulates it to a stable output voltage (VOUT). The feedback pin (FB) is used to set the desired output voltage, which can be adjusted within the specified range.

The enable pin (EN) controls the operation of the regulator. When EN is high, the regulator is enabled and actively regulates the output voltage. When EN is low, the regulator enters a low-power shutdown mode, reducing power consumption.

The IC incorporates various protection features such as thermal shutdown and short-circuit current limiting to ensure safe and reliable operation.

Detailed Application Field Plans

The MIC4834YMM is suitable for a wide range of applications that require a regulated voltage supply. Some potential application fields include:

1. Battery-Powered Devices: Portable electronic devices, such as smartphones, tablets, and wearable devices, can benefit from the MIC4834YMM's low dropout voltage and high output current capability.

2. Industrial Control Systems: The IC can be used in industrial control systems to regulate voltages for sensors, actuators, and other components.

3. Automotive Electronics: The MIC4834YMM's