ISL6446AIAZ

Product Overview

Category

ISL6446AIAZ belongs to the category of integrated circuits (ICs).

Use

It is commonly used in power management applications.

Characteristics

• High efficiency
• Low power consumption
• Compact size
• Reliable performance

Package

ISL6446AIAZ is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of ISL6446AIAZ lies in its ability to efficiently regulate and control power in various electronic devices.

Packaging/Quantity

ISL6446AIAZ is typically packaged in reels, with each reel containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.8V to 5.5V
• Maximum Output Current: 6A
• Switching Frequency: 300kHz to 1MHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

ISL6446AIAZ has a total of 16 pins. The pin configuration is as follows:

1. VIN: Input voltage
2. GND: Ground
3. FB1: Feedback input for channel 1
4. COMP1: Compensation node for channel 1
5. SS1: Soft-start capacitor connection for channel 1
6. PGND1: Power ground for channel 1
7. LX1: Switching node for channel 1
8. VCC: Supply voltage for internal logic
9. EN: Enable pin
10. FB2: Feedback input for channel 2
11. COMP2: Compensation node for channel 2
12. SS2: Soft-start capacitor connection for channel 2
13. PGND2: Power ground for channel 2
14. LX2: Switching node for channel 2
15. VCC5V: 5V supply voltage output
16. VCC3V3: 3.3V supply voltage output

Functional Features

• Dual-channel synchronous buck controller
• Adaptive on-time control architecture
• Voltage mode control with feed-forward compensation
• Programmable soft-start and tracking
• Overcurrent protection
• Overvoltage protection
• Undervoltage lockout
• Thermal shutdown protection

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Wide input voltage range
• Compact size for space-constrained applications
• Comprehensive protection features

Disadvantages

• Limited maximum output current (6A)
• Requires external components for complete power management solution

Working Principles

ISL6446AIAZ operates as a dual-channel synchronous buck controller. It utilizes an adaptive on-time control architecture to regulate the output voltage efficiently. The voltage mode control with feed-forward compensation ensures stable and accurate voltage regulation. The IC incorporates various protection mechanisms such as overcurrent, overvoltage, undervoltage lockout, and thermal shutdown to safeguard the system.

Detailed Application Field Plans

ISL6446AIAZ finds extensive application in various fields, including but not limited to: - Telecommunications equipment - Networking devices - Industrial automation systems - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to ISL6446AIAZ are: - LTC3880: Dual-phase synchronous step-down DC/DC controller - TPS54360: Dual-output synchronous buck converter - MAX15062: Dual high-efficiency synchronous buck controller - ADP2384: Dual-channel synchronous buck controller

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.

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