IMM251816C Product Overview

Introduction

IMM251816C is a versatile integrated circuit that belongs to the category of power management ICs. This component is widely used in various electronic devices and systems due to its unique characteristics and functional features.

Basic Information Overview

• Category: Power Management IC
• Use: Regulating and managing power supply within electronic devices
• Characteristics: High efficiency, compact design, wide input voltage range
• Package: Small outline package (SOP), 16-pin
• Essence: Efficient power regulation and management
• Packaging/Quantity: Typically packaged in reels of 2500 units

Specifications

• Input Voltage Range: 4V to 36V
• Output Voltage Range: 1.2V to 33V
• Output Current: Up to 3A
• Switching Frequency: Adjustable up to 2MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN (Pin 1): Input voltage
2. SW (Pin 2): Switch node
3. GND (Pins 3, 6, 9, 12): Ground
4. FB (Pin 4): Feedback voltage
5. EN (Pin 5): Enable control
6. LX (Pin 7): Inductor connection
7. COMP (Pin 8): Compensation network
8. SS/TR/PG (Pin 10): Soft start, tracking, power good
9. VOUT (Pin 11): Output voltage
10. PGND (Pin 13): Power ground
11. RT/CLK (Pin 14): Resistor, capacitor, or clock synchronization
12. SS/TR/PG (Pin 15): Soft start, tracking, power good
13. VCC (Pin 16): Control circuitry voltage

Functional Features

• Wide Input Voltage Range: Allows for flexibility in various power supply applications
• High Efficiency: Minimizes power loss and heat generation
• Adjustable Switching Frequency: Enables optimization for different system requirements
• Protection Features: Overcurrent protection, thermal shutdown, and undervoltage lockout

Advantages and Disadvantages

Advantages

• Compact design suitable for space-constrained applications
• High efficiency leads to energy savings and reduced heat dissipation
• Wide input voltage range enhances versatility in usage

Disadvantages

• Higher cost compared to traditional linear regulators
• Requires careful PCB layout and external component selection for optimal performance

Working Principles

IMM251816C operates based on a switching regulator topology, efficiently converting the input voltage to the desired output voltage through high-frequency switching. The feedback loop ensures precise regulation, while the control circuitry manages the switching frequency and duty cycle to maintain stable output.

Detailed Application Field Plans

• Automotive Electronics: Power management in infotainment systems, lighting, and motor control
• Industrial Automation: Control systems, motor drives, and instrumentation
• Telecommunications: Base stations, networking equipment, and power supplies
• Consumer Electronics: Portable devices, audio amplifiers, and LED drivers

Detailed and Complete Alternative Models

1. IMM251812C: Similar specifications with lower output current capability
2. IMM251820C: Higher output current capability with slightly larger package size
3. IMM251816D: Enhanced features such as adjustable soft start and power good indication

In conclusion, IMM251816C offers a reliable and efficient solution for power management in diverse electronic applications, despite its limitations in cost and external component considerations.

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