ISL6521CBZ

Product Overview

Category

ISL6521CBZ belongs to the category of integrated circuits (ICs).

Use

The ISL6521CBZ is commonly used as a voltage regulator in various electronic devices.

Characteristics

• Voltage regulation capability
• High efficiency
• Low power consumption
• Compact size

Package

ISL6521CBZ is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of ISL6521CBZ lies in its ability to regulate and stabilize voltage levels within electronic devices, ensuring proper functioning and protection against voltage fluctuations.

Packaging/Quantity

ISL6521CBZ is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 5.5V
• Output Voltage Range: 0.8V to 3.3V
• Maximum Output Current: 2A
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 95%
• Quiescent Current: 120µA

Detailed Pin Configuration

The ISL6521CBZ has 16 pins, each serving a specific function. The pin configuration is as follows:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VCC: Power supply pin
4. FB: Feedback pin for output voltage regulation
5. COMP: Compensation pin for stability control
6. SS/TR: Soft-start/Tracking pin
7. EN: Enable pin for turning on/off the regulator
8. PG: Power Good indicator pin
9. BOOT: Bootstrap capacitor connection pin
10. LX: Switching node pin
11. SW: Switching node pin
12. AGND: Analog ground pin
13. VSENSE: Current sense pin
14. ISET: Output current setting pin
15. VREF: Reference voltage pin
16. SS/TR: Soft-start/Tracking pin

Functional Features

• Voltage regulation: ISL6521CBZ ensures a stable output voltage within the specified range.
• Overcurrent protection: The IC incorporates overcurrent protection to safeguard connected devices.
• Soft-start function: Soft-start feature prevents sudden voltage surges during power-up, enhancing device reliability.
• Power Good indicator: The PG pin provides an indication of the regulator's output status.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Compact size allows for easy integration into various electronic devices.
• Wide input and output voltage ranges provide flexibility in application.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Temperature limitations (-40°C to +85°C) may not be suitable for extreme environments.

Working Principles

ISL6521CBZ operates on the principle of pulse width modulation (PWM). It regulates the output voltage by adjusting the duty cycle of the switching signal. This control mechanism ensures that the output voltage remains within the desired range, compensating for variations in input voltage and load conditions.

Detailed Application Field Plans

ISL6521CBZ finds applications in various electronic devices, including but not limited to: - Mobile phones - Tablets - Laptops - Portable gaming consoles - Digital cameras - LED lighting systems

Detailed and Complete Alternative Models

Some alternative models to ISL6521CBZ include: - LM2576-ADJ - LT1083CP - TPS5430DDAR - MAX5035AUPA - MC34063AP1G

These models offer similar functionality and can be considered as alternatives based on specific requirements.

In conclusion, ISL6521CBZ is a versatile voltage regulator IC that provides stable and efficient voltage regulation for various electronic devices. Its compact size, wide input/output voltage range, and functional features make it a popular choice in the industry. However, its limitations in terms of maximum output current and temperature range should be considered when selecting alternative models.