S-8521C28MC-BTNT2U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management IC
• Characteristics: Low Dropout Voltage Regulator with Built-in Battery Backup Switching Function
• Package: 8-pin SON (Small Outline Non-leaded) package
• Essence: Provides stable power supply and battery backup switching function for electronic devices
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on customer requirements

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 0.8V to 5.0V
• Maximum Output Current: 150mA
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin (active high)
4. VOUT: Output voltage pin
5. SS: Soft-start capacitor connection pin
6. CE: Battery backup control pin
7. BAT: Battery input pin
8. NC: No connection pin

Functional Features

• Low dropout voltage ensures stable output voltage even when the input voltage is close to the output voltage.
• Built-in battery backup switching function allows seamless transition between the main power supply and battery backup.
• Soft-start function prevents excessive inrush current during startup.
• Low quiescent current minimizes power consumption in standby mode.
• Overcurrent protection and thermal shutdown features ensure safe operation.

Advantages

• Compact 8-pin package enables space-saving integration into various electronic devices.
• Wide input voltage range allows compatibility with different power sources.
• Battery backup switching function provides uninterrupted operation during power outages.
• Low dropout voltage ensures efficient power conversion with minimal energy loss.
• Excellent load regulation and transient response characteristics.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires external components (such as capacitors) for proper operation.
• Relatively higher cost compared to non-regulated power supply solutions.

Working Principles

The S-8521C28MC-BTNT2U is a low dropout voltage regulator that regulates the input voltage to a stable output voltage. It utilizes a PNP transistor as the pass element, which ensures low dropout voltage. The built-in battery backup switching function allows seamless transition between the main power supply and battery backup, ensuring uninterrupted operation during power outages.

Detailed Application Field Plans

The S-8521C28MC-BTNT2U is widely used in various electronic devices that require a stable power supply and battery backup functionality. Some common application fields include: - Portable electronic devices (e.g., smartphones, tablets, portable media players) - Wireless communication devices (e.g., routers, modems, IoT devices) - Industrial control systems - Medical equipment - Automotive electronics

Detailed and Complete Alternative Models

• S-8521C28MC-BJNT2U: Similar specifications but with a different package (8-pin SOP)
• S-8521C28MC-CBNT2U: Higher maximum output current (300mA) but with a slightly higher dropout voltage
• S-8521C28MC-DANT2U: Lower quiescent current (10µA) but with a narrower input voltage range (2.7V to 5.5V)

(Note: This list is not exhaustive and there may be other alternative models available from the manufacturer.)

This concludes the encyclopedia entry for the S-8521C28MC-BTNT2U power management IC.