ISL6323BIRZR5381

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High efficiency, low noise, compact size
• Package: BGA (Ball Grid Array)
• Essence: Power management solution for various electronic devices
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.6V to 5.5V
• Output Current: Up to 20A
• Switching Frequency: 300kHz to 2MHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL6323BIRZR5381 has a total of 32 pins. The pin configuration is as follows:

1. VIN: Input voltage
2. GND: Ground
3. VCC: Internal voltage supply
4. FB1: Feedback input for channel 1
5. COMP1: Compensation node for channel 1
6. LGATE1: Low-side gate driver output for channel 1
7. PGND1: Power ground for channel 1
8. BOOT1: Bootstrap capacitor connection for channel 1
9. PHASE1: Phase node for channel 1
10. UGATE1: High-side gate driver output for channel 1
11. VSENSE1: Current sense input for channel 1
12. SS1: Soft-start control for channel 1
13. EN1: Enable control for channel 1
14. FB2: Feedback input for channel 2
15. COMP2: Compensation node for channel 2
16. LGATE2: Low-side gate driver output for channel 2
17. PGND2: Power ground for channel 2
18. BOOT2: Bootstrap capacitor connection for channel 2
19. PHASE2: Phase node for channel 2
20. UGATE2: High-side gate driver output for channel 2
21. VSENSE2: Current sense input for channel 2
22. SS2: Soft-start control for channel 2
23. EN2: Enable control for channel 2
24. VCCP: Power supply for the controller
25. VREF: Reference voltage output
26. AGND: Analog ground
27. COMP: Compensation node for both channels
28. RT: Timing resistor connection
29. CT: Timing capacitor connection
30. OCSET: Overcurrent protection threshold setting
31. OCSET2: Overcurrent protection threshold setting for channel 2
32. VIN2: Input voltage for channel 2

Functional Features

• Dual-channel synchronous buck converter
• Adaptive on-time control architecture
• Integrated high-side and low-side MOSFET drivers
• Programmable soft-start and current limit
• Overcurrent protection with adjustable threshold
• Voltage feedforward compensation
• Power-good indicator

Advantages and Disadvantages

Advantages

• High efficiency, reducing power consumption
• Low noise output, ensuring signal integrity
• Compact size, suitable for space-constrained applications
• Integrated MOSFET drivers simplify circuit design
• Adjustable current limit for enhanced protection

Disadvantages

• Limited input voltage range (4.5V to 28V)
• Relatively high operating temperature range (-40°C to +85°C)

Working Principles

The ISL6323BIRZR5381 is a dual-channel synchronous buck converter designed for voltage regulation in electronic devices. It utilizes an adaptive on-time control architecture to efficiently convert the input voltage to a regulated output voltage. The integrated high-side and low-side MOSFET drivers enable synchronous rectification, minimizing power losses.

The converter operates by adjusting the on-time of the power switches based on the load conditions. It employs voltage feedforward compensation to improve transient response and stability. The soft-start feature allows for gradual ramp-up of the output voltage during startup, preventing excessive inrush current.

To ensure protection against overcurrent events, the ISL6323BIRZR5381 incorporates adjustable current limit thresholds. This helps safeguard the circuit and connected components from damage. Additionally, a power-good indicator provides a signal indicating the output voltage is within the desired range.

Detailed Application Field Plans

The ISL6323BIRZR5381 finds applications in various electronic devices that require efficient voltage regulation. Some potential application fields include:

1. Computer motherboards
2. Graphics cards
3. Industrial automation systems
4. Telecommunications equipment
5. Server power supplies
6. Automotive electronics
7. LED lighting systems
8. Consumer electronics

Detailed and Complete Alternative Models

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