ISL78420AVEZ-T

Product Overview

Category

The ISL78420AVEZ-T belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used for voltage regulation and power distribution in various electronic devices and systems.

Characteristics

• High efficiency: The ISL78420AVEZ-T offers high efficiency power conversion, minimizing energy loss during operation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Low quiescent current: The IC has a low quiescent current, reducing power consumption when the load is light.
• Overcurrent protection: It incorporates overcurrent protection to safeguard the circuitry from excessive currents.
• Thermal shutdown: The IC features thermal shutdown protection, preventing damage due to excessive heat.

Package

The ISL78420AVEZ-T is available in a compact surface-mount package, allowing for easy integration onto PCBs.

Essence

The essence of the ISL78420AVEZ-T lies in its ability to efficiently regulate and distribute power within electronic systems, ensuring stable and reliable operation.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 0.8V to 55V
• Maximum Output Current: 2A
• Quiescent Current: 25µA
• Operating Temperature Range: -40°C to +125°C
• Package Type: 16-Lead HTSSOP

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. FB: Feedback pin for voltage regulation
4. EN: Enable pin to control the IC's operation
5. SS/TRK: Soft-start/Tracking pin for controlling the startup behavior
6. PGND: Power ground reference pin
7. VCC: Supply voltage pin for internal circuitry
8. SW: Switching node pin for power distribution
9. BST: Boost pin for high-side gate driver
10. LX: Inductor current sense pin
11. COMP: Compensation pin for stability optimization
12. SS/TRK: Soft-start/Tracking pin for controlling the startup behavior
13. FB: Feedback pin for voltage regulation
14. GND: Ground reference pin
15. VIN: Input voltage pin
16. VCC: Supply voltage pin for internal circuitry

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency power conversion minimizes energy loss.
• Overcurrent protection safeguards against excessive currents.
• Thermal shutdown protection prevents damage due to overheating.
• Soft-start and tracking functionality ensure smooth startup and operation.

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Wide input voltage range
• Overcurrent and thermal protection
• Compact package for easy integration

Disadvantages

• Limited maximum output current (2A)

Working Principles

The ISL78420AVEZ-T operates based on a switching regulator topology. It utilizes a combination of high-frequency switching and inductive energy storage to efficiently regulate and distribute power. The IC continuously monitors the input and output voltages, adjusting the duty cycle of the switching transistor to maintain a stable output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The ISL78420AVEZ-T finds applications in various fields, including but not limited to: - Automotive electronics - Industrial automation - Telecommunications - Consumer electronics - Power supplies

Detailed and Complete Alternative Models

• ISL78420AVEZ-T: 2A output current
• ISL78410AVEZ-T: 1A output current
• ISL78405AVEZ-T: 500mA output current
• ISL78402AVEZ-T: 200mA output current

These alternative models offer different output current capabilities to cater to a wide range of power management requirements.

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