SM72238TDX-5.0/NOPB

Overview

Product Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Input Voltage Range: 4.5V to 5.5V - Output Voltage: 5.0V - Package Type: TO-263-7 (D2PAK) - Essence: Low Dropout Linear Regulator - Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

The SM72238TDX-5.0/NOPB is a low dropout linear regulator IC designed for voltage regulation applications. It operates within an input voltage range of 4.5V to 5.5V and provides a stable output voltage of 5.0V. The IC is packaged in a TO-263-7 (D2PAK) package, which offers excellent thermal performance.

Key specifications of the SM72238TDX-5.0/NOPB include: - Dropout Voltage: 0.3V (typical) - Output Current: 1.5A (maximum) - Line Regulation: ±0.05% (typical) - Load Regulation: ±0.1% (typical) - Quiescent Current: 75µA (typical) - Thermal Shutdown Protection: Yes

Pin Configuration

The SM72238TDX-5.0/NOPB features a seven-pin configuration as follows:

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| | --| Vout | --| GND | --| Vin | --| NC | --| EN | --| NC | |___________| ```

Pin Description: - Vout: Output Voltage - GND: Ground - Vin: Input Voltage - NC: No Connection - EN: Enable Pin (Active High)

Functional Features

The SM72238TDX-5.0/NOPB offers the following functional features: 1. Low Dropout Voltage: The IC has a low dropout voltage of 0.3V, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage. 2. Excellent Line and Load Regulation: It provides precise regulation of the output voltage under varying line and load conditions, ensuring stable performance. 3. Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature by shutting down the regulator temporarily.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient voltage regulation. - Precise line and load regulation for stable output voltage. - Thermal shutdown protection prevents overheating and damage.

Disadvantages: - Limited maximum output current of 1.5A may not be suitable for high-power applications. - No adjustable output voltage option available.

Working Principles

The SM72238TDX-5.0/NOPB operates as a linear regulator, utilizing a pass transistor to regulate the output voltage. When the input voltage exceeds the desired output voltage, the pass transistor adjusts its resistance to maintain a constant output voltage. The enable pin allows the user to control the regulator's operation by enabling or disabling the output.

Detailed Application Field Plans

The SM72238TDX-5.0/NOPB is commonly used in various electronic devices and systems that require a stable 5.0V power supply. Some typical application fields include: - Consumer Electronics: Used in audio/video equipment, set-top boxes, and gaming consoles. - Computer Systems: Provides regulated power to motherboards, graphics cards, and peripherals. - Industrial Automation: Used in control systems, motor drives, and sensors. - Automotive Electronics: Provides regulated power to automotive infotainment systems, lighting modules, and sensors.

Detailed and Complete Alternative Models

1. LM1117-5.0: Low dropout linear regulator with a fixed 5.0V output voltage. Available in various package options.
2. LT1763-5.0: Low dropout linear regulator with a fixed 5.0V output voltage. Offers high accuracy and low quiescent current.
3. TPS7A4901-5.0: Ultra-low dropout linear regulator with a fixed 5.0V output voltage. Provides excellent line and load regulation.

These alternative models offer similar functionality and can be considered as alternatives to the SM72238TDX-5.0/NOPB based on specific application requirements.

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