S-8521F33MC-BPST2U

Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output voltage accuracy - Low quiescent current - Thermal shutdown protection - Overcurrent protection

Package: SOT-23-5

Essence: The S-8521F33MC-BPST2U is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The S-8521F33MC-BPST2U is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage: 3.3V ±2%
• Maximum Output Current: 150mA
• Dropout Voltage: 160mV (at 100mA)
• Quiescent Current: 30μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-8521F33MC-BPST2U has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. CE (Chip Enable)
4. VOUT (Output Voltage)
5. NC (No Connection)

Functional Features

• Low Dropout Voltage: The S-8521F33MC-BPST2U exhibits a low dropout voltage, ensuring efficient power conversion even when the input voltage is close to the desired output voltage.
• High Output Voltage Accuracy: With a ±2% output voltage accuracy, this voltage regulator provides a stable and precise output voltage, minimizing fluctuations and ensuring reliable performance of connected devices.
• Low Quiescent Current: The IC consumes only 30μA of quiescent current, reducing power consumption and extending battery life in portable applications.
• Thermal Shutdown Protection: The S-8521F33MC-BPST2U incorporates thermal shutdown protection, which prevents the IC from overheating and ensures safe operation under high temperature conditions.
• Overcurrent Protection: This voltage regulator features overcurrent protection, safeguarding the connected circuitry from excessive current flow and potential damage.

Advantages and Disadvantages

Advantages: - Low dropout voltage improves efficiency - High output voltage accuracy ensures stable performance - Low quiescent current reduces power consumption - Thermal shutdown protection prevents overheating - Overcurrent protection safeguards connected devices

Disadvantages: - Limited maximum output current (150mA) - Restricted input voltage range (2.5V to 6.0V)

Working Principles

The S-8521F33MC-BPST2U operates as a linear voltage regulator. It regulates the input voltage to a stable 3.3V output voltage by utilizing an internal reference voltage and feedback control mechanism. When the input voltage exceeds the desired output voltage, the IC adjusts its internal circuitry to maintain a constant output voltage.

Detailed Application Field Plans

The S-8521F33MC-BPST2U is commonly used in various electronic devices that require a stable 3.3V power supply. Some typical application fields include:

1. Mobile Devices: Smartphones, tablets, portable media players
2. IoT Devices: Wearable devices, smart home sensors
3. Consumer Electronics: Digital cameras, portable gaming consoles
4. Industrial Equipment: Measurement instruments, control systems
5. Automotive Electronics: Infotainment systems, navigation devices

Detailed and Complete Alternative Models

1. S-8521F33MC-BPST1U: Similar to the S-8521F33MC-BPST2U, but with a different package (SOT-89-5).
2. S-8521F33MC-BPST3U: Similar to the S-8521F33MC-BPST2U, but with a higher maximum output current (300mA).
3. S-8521F33MC-BPST4U: Similar to the S-8521F33MC-BPST2U, but with a wider input voltage range (2.0V to 6.5V).

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.

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