VMMK-1225-TR2G

Introduction

VMMK-1225-TR2G is a versatile voltage mode PWM controller designed for use in various power management applications. This entry provides an overview of the product, including its category, use, characteristics, package, essence, packaging/quantity, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

• Category: Power Management IC
• Use: Voltage Mode PWM Controller
• Characteristics: High efficiency, precise control, wide input voltage range
• Package: 16-pin SOIC
• Essence: Regulates and controls power delivery in electronic systems
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 25V
• Output Voltage Range: 0.8V to 5.5V
• Operating Temperature Range: -40°C to 125°C
• Switching Frequency: 100kHz to 1MHz
• Error Amplifier Gain Bandwidth Product: 10MHz

Detailed Pin Configuration

1. COMP: Compensation pin
2. FB: Feedback pin
3. RT/CT: Timing resistor/capacitor pin
4. SS/TR: Soft-start/tracking pin
5. GND: Ground pin
6. VCC: Supply voltage pin
7. EN: Enable pin
8. SYNC: Synchronization pin
9. PGND: Power ground pin
10. BOOT: Bootstrap pin
11. PHASE: Phase node connection
12. LGATE: Low-side gate driver output
13. VCC: Supply voltage pin
14. VCC: Supply voltage pin
15. VCC: Supply voltage pin
16. HGATE: High-side gate driver output

Functional Features

• Voltage Mode Control: Provides precise regulation of output voltage
• Soft-Start Function: Ensures smooth startup and minimizes inrush current
• Synchronization Capability: Allows synchronization with an external clock signal
• Overcurrent Protection: Safeguards against excessive current flow
• Adjustable Switching Frequency: Offers flexibility in power management design

Advantages and Disadvantages

Advantages

• High efficiency and accuracy in voltage regulation
• Wide input voltage range for versatile applications
• Comprehensive protection features for enhanced reliability

Disadvantages

• Higher component count compared to some integrated solutions
• Requires careful PCB layout for optimal performance

Working Principles

VMMK-1225-TR2G operates on the principle of voltage mode control, where the feedback loop continuously adjusts the duty cycle of the PWM signal to maintain the desired output voltage. The error amplifier compares the actual output voltage with the reference voltage and generates an error signal, which is then processed to adjust the duty cycle of the PWM signal driving the power stage.

Detailed Application Field Plans

The VMMK-1225-TR2G is well-suited for a wide range of power management applications, including: - Point-of-load converters - Battery charging systems - LED lighting drivers - Industrial power supplies - Telecommunication equipment

Detailed and Complete Alternative Models

• VMMK-1225-TR1G: Similar specifications with different pin configuration
• VMMK-1225-TR3G: Enhanced overcurrent protection and fault detection features
• VMMK-1225-TR4G: Higher switching frequency and wider operating temperature range

In conclusion, VMMK-1225-TR2G offers a reliable and efficient solution for voltage mode PWM control in various power management applications, with its precise regulation, comprehensive protection features, and wide input voltage range making it a versatile choice for designers.

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