ISL6566CR-T

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: 16-Lead QSOP

Essence: The ISL6566CR-T is a voltage regulator IC designed for high-efficiency power management applications. It provides adjustable output voltage with overcurrent and thermal shutdown protection.

Packaging/Quantity: The ISL6566CR-T is available in a 16-Lead QSOP package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 4.5V to 24V
• Output Voltage Range: 0.8V to 5.5V
• Maximum Output Current: 20A
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ISL6566CR-T has the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. FB: Feedback voltage
4. COMP: Compensation
5. SS/TR: Soft-start/Tracking
6. VCC: Power supply
7. PGND: Power ground
8. BOOT: Bootstrap capacitor connection
9. PHASE: Phase node connection
10. LGATE: Low-side gate driver output
11. PGATE: Power ground for gate driver
12. UGATE: High-side gate driver output
13. RT: Timing resistor
14. CT: Timing capacitor
15. OCSET: Overcurrent threshold setting
16. SS/TR: Soft-start/Tracking

Functional Features

• Adjustable output voltage through feedback control
• Overcurrent protection prevents damage to the circuit during high load conditions
• Thermal shutdown protection prevents overheating of the IC
• Soft-start feature for controlled startup and reduced inrush current
• Wide input voltage range allows for versatile applications

Advantages and Disadvantages

Advantages: - High efficiency results in lower power dissipation - Wide input voltage range accommodates various power sources - Overcurrent and thermal shutdown protection enhance system reliability - Adjustable output voltage provides flexibility in different applications

Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Requires external components for proper operation - May require additional circuitry for specific application requirements

Working Principles

The ISL6566CR-T operates as a voltage regulator by adjusting the output voltage based on the feedback received. It uses a combination of internal circuitry and external components to regulate the voltage within the desired range. The overcurrent protection feature monitors the load current and shuts down the IC if it exceeds a predefined threshold. Similarly, the thermal shutdown protection activates when the temperature of the IC rises above a certain limit, preventing damage due to overheating.

Detailed Application Field Plans

The ISL6566CR-T is commonly used in various power management applications, including but not limited to: - Computer motherboards - Industrial power supplies - Telecommunication equipment - Consumer electronics - Automotive systems

Detailed and Complete Alternative Models

1. ISL6566IR-T: Similar to ISL6566CR-T, but available in a 16-Lead QFN package.
2. ISL6566CHRTZ-T: Higher temperature range variant (-40°C to +125°C) with the same features and pin configuration.
3. ISL6566CRZ-T: RoHS-compliant version of ISL6566CR-T with the same specifications and characteristics.

These alternative models provide similar functionality and can be considered as replacements for the ISL6566CR-T based on specific application requirements.

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