MIC5249-1.5YMM-TR

Product Overview

Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: Low Dropout, Low Quiescent Current
Package: SOT-23-5
Essence: Linear Voltage Regulator
Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Output Voltage: 1.5V
• Input Voltage Range: 2.3V to 5.5V
• Dropout Voltage: 150mV at 150mA
• Quiescent Current: 35µA
• Load Regulation: ±0.5%
• Line Regulation: ±0.2%
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC5249-1.5YMM-TR has a total of 5 pins in the SOT-23-5 package. The pin configuration is as follows:

```

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| | --| Vout GND |-- Pin 1: Ground --| Vin EN |-- Pin 2: Enable --| Bypass NC |-- Pin 3: No Connection --| Bypass NC |-- Pin 4: No Connection --| Vcap Vref |-- Pin 5: Reference Voltage |___________| ```

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output differentials.
• Low quiescent current minimizes power consumption during standby or idle conditions.
• Enable pin provides control over the regulator's operation, allowing for power-saving modes.
• Bypass pins provide additional filtering and noise reduction capabilities.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures stable output even with low input voltages. - Low quiescent current extends battery life in portable applications. - Enable pin allows for flexible power management. - Small package size enables space-saving designs.

Disadvantages: - Limited output voltage options (only 1.5V in this model). - Not suitable for high-power applications due to its maximum output current limitation.

Working Principles

The MIC5249-1.5YMM-TR is a linear voltage regulator that maintains a constant output voltage regardless of variations in the input voltage or load conditions. It achieves this by using a pass transistor and feedback circuitry to regulate the output voltage.

When the input voltage is within the specified range, the regulator operates in a linear mode, where the pass transistor adjusts its resistance to maintain a stable output voltage. The reference voltage on Pin 5 provides the necessary feedback for regulation.

The enable pin allows the user to control the regulator's operation. When the enable pin is low, the regulator enters a low-power standby mode, reducing the quiescent current and conserving energy.

Detailed Application Field Plans

The MIC5249-1.5YMM-TR is commonly used in various electronic devices and systems that require a stable 1.5V power supply. Some typical application fields include: - Battery-powered devices such as portable audio players, digital cameras, and handheld gaming consoles. - Embedded systems and microcontrollers that require a regulated voltage source. - IoT devices, sensors, and wearables with low-power requirements. - Automotive electronics, including infotainment systems and dashboard displays.

Detailed and Complete Alternative Models

• MIC5205-1.5YM5-TR: Similar specifications and pin configuration, but available in a SOT-23-5 package.
• LP2985-33DBVR: Low dropout voltage regulator with adjustable output voltage, available in a SOT-23-5 package.
• MCP1700-1502E/TO: Low quiescent current, low dropout voltage regulator with fixed 1.5V output, available in a TO-92 package.

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