PS081FN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Supply Controller
• Characteristics: High efficiency, compact size, low power consumption
• Package: SOP-8 (Small Outline Package)
• Essence: Regulates and controls power supply for various electronic devices
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Input Voltage Range: 4.5V to 25V
• Output Voltage Range: 0.8V to 20V
• Maximum Output Current: 2A
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 50µA (typical)

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. EN: Enable pin for turning the IC on/off
5. COMP: Compensation pin for stability control
6. SS: Soft-start pin for gradual power-up
7. VCC: Supply voltage pin
8. SW: Switching pin for power regulation

Functional Features

• Wide input voltage range allows compatibility with various power sources
• High efficiency ensures minimal power loss during operation
• Compact SOP-8 package enables space-saving designs
• Low quiescent current reduces power consumption in standby mode
• Soft-start feature prevents excessive inrush current during startup
• Built-in protection mechanisms against overvoltage, overcurrent, and overheating

Advantages

• Versatile power supply controller suitable for a wide range of applications
• Efficient power regulation leads to improved energy efficiency
• Small form factor facilitates integration into compact electronic devices
• Robust protection features enhance system reliability
• Easy to implement and configure in different circuit designs

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Requires external components for complete power supply circuit implementation
• Not compatible with input voltages below 4.5V or above 25V

Working Principles

The PS081FN operates as a voltage mode PWM (Pulse Width Modulation) controller. It regulates the output voltage by adjusting the duty cycle of the internal power switch. The feedback pin (FB) compares the actual output voltage with a reference voltage, and the control circuitry adjusts the duty cycle accordingly to maintain the desired output voltage.

Detailed Application Field Plans

• Power supply control in consumer electronics such as TVs, set-top boxes, and audio systems
• Battery charging circuits in portable devices like smartphones and tablets
• LED driver circuits for lighting applications
• Industrial automation systems requiring precise power regulation
• Automotive electronics for controlling various subsystems

Detailed and Complete Alternative Models

1. PS082FN: Similar specifications and features, but with higher maximum output current of 3A.
2. PS083FN: Enhanced protection features including short-circuit protection and thermal shutdown.
3. PS084FN: Wide input voltage range from 2.7V to 36V, suitable for a broader range of applications.

(Note: These alternative models are fictional and provided only as examples.)

This concludes the encyclopedia entry for PS081FN, a power supply controller IC offering efficient and compact power regulation for various electronic devices.