S-8521C33MC-BTST2U

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 and high output voltage accuracy
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV (typical) at 100mA load current
• Output Current: 150mA (maximum)
• Quiescent Current: 30µA (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.3% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-8521C33MC-BTST2U has a total of five pins: 1. VIN: Input voltage pin 2. GND: Ground pin 3. CE: Chip enable pin 4. VOUT: Output voltage pin 5. VSS: Substrate connection pin

Functional Features

• Low dropout voltage ensures stable operation even with small input-output voltage differentials.
• High output voltage accuracy provides precise regulation for various applications.
• Built-in overcurrent protection safeguards the circuit from excessive current flow.
• Thermal shutdown feature prevents damage due to excessive temperature.
• Reverse current protection prevents reverse current flow.

Advantages

• Wide input voltage range allows flexibility in power supply selection.
• Low quiescent current minimizes power consumption during standby mode.
• Small package size (SOT-23-5) enables space-saving designs.
• Excellent line and load regulation ensures stable output voltage under varying conditions.

Disadvantages

• Limited output current (150mA maximum) may not be suitable for high-power applications.
• Operating temperature range (-40°C to +85°C) may restrict usage in extreme environments.

Working Principles

The S-8521C33MC-BTST2U is a low dropout voltage regulator that maintains a stable output voltage even when the input voltage is slightly higher than the desired output voltage. It achieves this by utilizing a PNP transistor as the pass element, which minimizes the dropout voltage. The internal circuitry continuously monitors the output voltage and adjusts the pass element accordingly to maintain the desired voltage level.

Detailed Application Field Plans

The S-8521C33MC-BTST2U is widely used in various electronic devices and systems that require a stable and accurate power supply. Some common application fields include: - Battery-powered devices such as portable audio players, smartphones, and digital cameras. - Embedded systems and microcontrollers. - Automotive electronics. - Industrial control systems. - Medical equipment.

Detailed and Complete Alternative Models

1. S-8521C33MC-BKST2U: Similar specifications and features, but with a different package (SOT-23-5).
2. S-8521C33MC-CBST2U: Higher output current (300mA maximum), suitable for more demanding applications.
3. S-8521C33MC-DTST2U: Extended operating temperature range (-40°C to +105°C), suitable for harsh environments.

(Note: This list is not exhaustive and other alternative models may exist.)

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