S-8521B20MC-ATFT2U

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low power consumption - High efficiency - Small package size - Wide input voltage range - Overcurrent protection - Thermal shutdown protection

Package: QFN (Quad Flat No-leads) package

Essence: The S-8521B20MC-ATFT2U is a power management IC designed for various electronic devices that require efficient power supply and protection features.

Packaging/Quantity: The S-8521B20MC-ATFT2U is typically sold in reels, with 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: 3.3V
• Maximum Output Current: 200mA
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-8521B20MC-ATFT2U has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. VOUT: Output voltage pin

Functional Features

• Low dropout voltage
• Built-in overcurrent protection
• Built-in thermal shutdown protection
• Soft-start function
• Reverse current protection
• Short-circuit protection

Advantages and Disadvantages

Advantages: - Low power consumption - High efficiency - Wide input voltage range - Compact package size - Comprehensive protection features

Disadvantages: - Limited maximum output current (200mA)

Working Principles

The S-8521B20MC-ATFT2U is a voltage regulator IC that regulates the input voltage to a stable 3.3V output voltage. It achieves this by using an internal control circuit that adjusts the output voltage based on the feedback from the output pin. The IC also incorporates various protection features such as overcurrent protection, thermal shutdown protection, and reverse current protection to ensure safe operation.

Detailed Application Field Plans

The S-8521B20MC-ATFT2U is widely used in various electronic devices that require a stable and efficient power supply. Some of its application fields include:

1. Portable electronic devices (e.g., smartphones, tablets, portable media players)
2. Wearable devices (e.g., smartwatches, fitness trackers)
3. IoT (Internet of Things) devices
4. Battery-powered devices
5. Industrial equipment

Detailed and Complete Alternative Models

1. S-8521A33MC-ATFT2U: Similar to S-8521B20MC-ATFT2U but with a 3.3V output voltage and a maximum output current of 300mA.
2. S-8521C18MC-ATFT2U: Similar to S-8521B20MC-ATFT2U but with a 1.8V output voltage and a maximum output current of 200mA.
3. S-8521D25MC-ATFT2U: Similar to S-8521B20MC-ATFT2U but with a 2.5V output voltage and a maximum output current of 200mA.

These alternative models provide flexibility in choosing the appropriate voltage and current specifications for different applications.

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