ISL6440IA-T

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency voltage regulator - Low power consumption - Wide input voltage range - Overcurrent protection - Thermal shutdown protection

Package: 48-Ld QFN package

Essence: The ISL6440IA-T is a power management IC designed for high-efficiency voltage regulation in various applications.

Packaging/Quantity: The ISL6440IA-T is available in a 48-lead Quad Flat No-Lead (QFN) package. It is typically sold in reels of 250 units.

Specifications

The ISL6440IA-T has the following specifications:

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.8V to 5.5V
• Maximum Output Current: 4A
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The detailed pin configuration of the ISL6440IA-T is as follows:

1. VIN: Input voltage
2. GND: Ground
3. FB: Feedback voltage
4. EN: Enable control
5. COMP: Compensation
6. VCC: Supply voltage
7. PGND: Power ground
8. BOOT: Bootstrap capacitor connection
9. LX: Switching node
10. SS: Soft-start control
11. OCSET: Overcurrent protection threshold setting
12. PGOOD: Power good indicator
13. RT: Oscillator timing resistor
14. CT: Oscillator timing capacitor
15. SYNC: Synchronization input
16. VREF: Reference voltage output

Functional Features

The ISL6440IA-T offers the following functional features:

1. High Efficiency: The IC incorporates a high-efficiency voltage regulator that minimizes power losses and maximizes energy conversion.
2. Overcurrent Protection: It includes overcurrent protection to prevent damage to the circuit in case of excessive current flow.
3. Thermal Shutdown Protection: The IC is equipped with thermal shutdown protection, which shuts down the device if the temperature exceeds a certain threshold.
4. Wide Input Voltage Range: The ISL6440IA-T can operate within a wide input voltage range, making it suitable for various applications.
5. Low Power Consumption: The IC has low power consumption, contributing to energy efficiency.

Advantages and Disadvantages

Advantages: - High efficiency operation - Wide input voltage range - Overcurrent and thermal protection - Compact package size

Disadvantages: - Limited maximum output current (4A)

Working Principles

The ISL6440IA-T operates as a voltage regulator by converting the input voltage to a regulated output voltage. It utilizes a feedback mechanism to maintain the desired output voltage level. The IC continuously monitors the output voltage and adjusts the internal circuitry to ensure stability and accuracy.

Detailed Application Field Plans

The ISL6440IA-T is commonly used in the following application fields:

1. Power Supplies: The IC is widely employed in power supply units for various electronic devices, such as computers, telecommunication equipment, and industrial machinery.
2. Automotive Electronics: It finds applications in automotive electronics systems, including infotainment systems, navigation systems, and advanced driver-assistance systems (ADAS).
3. Consumer Electronics: The IC is utilized in consumer electronic devices like smartphones, tablets, and gaming consoles to regulate the power supply efficiently.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the ISL6440IA-T include:

1. LM2576T-ADJ: Adjustable voltage regulator with a maximum output current of 3A.
2. LT1084CP-5: Fixed voltage regulator with a maximum output current of 5A.
3. TPS5430DDAR: Synchronous buck converter with a maximum output current of 3A.

These alternative models can be considered based on specific requirements and application needs.

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