SM72482X/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: SOP-8 (Small Outline Package)

Essence: The SM72482X/NOPB is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The SM72482X/NOPB is typically sold in reels containing 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 1.2V to 3.6V
• Dropout Voltage: 200mV at 300mA
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SM72482X/NOPB has the following pin configuration:

1. VOUT: Output Voltage
2. GND: Ground
3. FB: Feedback Pin
4. EN: Enable Pin
5. VIN: Input Voltage
6. NC: No Connection
7. NC: No Connection
8. VREF: Reference Voltage

Functional Features

• High Efficiency: The SM72482X/NOPB offers high efficiency, minimizing power loss during voltage regulation.
• Low Dropout Voltage: With a low dropout voltage of only 200mV at 300mA, the IC can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The output voltage can be adjusted within the range of 1.2V to 3.6V, providing flexibility for different applications.
• Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the connected devices from excessive current flow.
• Thermal Shutdown Protection: In case of excessive temperature rise, the thermal shutdown feature activates to prevent damage to the IC.

Advantages and Disadvantages

Advantages: - High efficiency - Adjustable output voltage - Overcurrent and thermal protection

Disadvantages: - Limited input voltage range (2.7V to 5.5V) - Dropout voltage may affect performance in low input voltage scenarios

Working Principles

The SM72482X/NOPB operates as a linear voltage regulator. It takes an input voltage from the VIN pin and regulates it to a stable output voltage at the VOUT pin. The feedback (FB) pin is used to set the desired output voltage by connecting appropriate resistors. The enable (EN) pin allows for easy on/off control of the regulator.

Detailed Application Field Plans

The SM72482X/NOPB finds applications in various electronic devices requiring a stable and regulated power supply. Some potential application fields include:

1. Mobile Devices: Smartphones, tablets, portable media players.
2. IoT Devices: Wearable devices, smart home sensors, connected appliances.
3. Automotive Electronics: Infotainment systems, navigation units, lighting controls.
4. Industrial Equipment: Control systems, motor drives, instrumentation.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator with similar features.
2. LT1086: Low dropout voltage regulator with adjustable output voltage.
3. TPS7A4700: High-efficiency voltage regulator with wide input voltage range.

These alternative models offer similar functionality and can be considered as substitutes for the SM72482X/NOPB depending on specific requirements.

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