S-8521E33MC-BLST2U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management IC
• Characteristics: Low Dropout Voltage Regulator
• Package: SOT-23-5
• Essence: Voltage regulator with low dropout voltage and high output current capability
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV (typical) at 500mA load current
• Output Current: Up to 500mA
• Quiescent Current: 75µA (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.3% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-8521E33MC-BLST2U has a total of five pins arranged as follows: 1. VIN: Input voltage pin 2. GND: Ground pin 3. CE: Chip enable pin 4. VOUT: Output voltage pin 5. NC: No connection pin

Functional Features

• Low dropout voltage ensures stable output even when the input voltage is close to the output voltage.
• High output current capability allows for powering various devices.
• Built-in overcurrent protection safeguards the circuit from excessive current.
• Thermal shutdown protection prevents damage due to overheating.
• Fast transient response enables quick stabilization of the output voltage.

Advantages

• Wide input voltage range provides flexibility in different applications.
• Low quiescent current minimizes power consumption.
• Small package size (SOT-23-5) allows for space-saving designs.
• Excellent line and load regulation ensure stable output voltage under varying conditions.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Dropout voltage of 200mV may affect efficiency in low voltage scenarios.

Working Principles

The S-8521E33MC-BLST2U is a low dropout voltage regulator that maintains a stable output voltage even when the input voltage is close to the desired output voltage. It achieves this by utilizing a pass transistor that adjusts its resistance to compensate for any voltage difference between the input and output. The chip enable pin (CE) controls the operation of the regulator, allowing it to be turned on or off as required.

Detailed Application Field Plans

The S-8521E33MC-BLST2U is commonly used in various battery-powered devices, such as portable electronic devices, smartphones, tablets, and digital cameras. It is also suitable for applications where a stable voltage supply is required, such as industrial control systems, automotive electronics, and medical equipment.

Detailed and Complete Alternative Models

1. S-8521E33MC-BNPT2U: Similar specifications and features, but with a different package (SNT-6A)
2. S-8521E33MC-BMPT2U: Similar specifications and features, but with a different package (SOT-23-6)
3. S-8521E33MC-BNST2U: Similar specifications and features, but with a different package (SNT-6A)

These alternative models provide options for different PCB layouts and space constraints while maintaining similar functionality.

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