ISL91110II2AZ-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current
• Package: 12-Lead DFN (3mm x 4mm)
• Essence: Buck-Boost Regulator
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 1.8V to 5.5V
• Output Voltage Range: 1.8V to 5.25V
• Maximum Output Current: 1.2A
• Switching Frequency: 1.2MHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL91110II2AZ-T has a total of 12 pins arranged as follows:

1. EN (Enable)
2. VIN (Input Voltage)
3. GND (Ground)
4. SW (Switch Node)
5. LX (Inductor Connection)
6. FB (Feedback Voltage)
7. VOUT (Output Voltage)
8. PGND (Power Ground)
9. SS (Soft-Start)
10. BST (Bootstrap)
11. NC (No Connect)
12. VDD (Supply Voltage)

Functional Features

• Buck-Boost Architecture: Allows the IC to regulate the output voltage regardless of whether the input voltage is higher or lower than the desired output voltage.
• High Efficiency: The ISL91110II2AZ-T offers high efficiency conversion, minimizing power losses during operation.
• Low Quiescent Current: The IC consumes very low current when in standby mode, conserving energy.
• Enable Pin: Provides control over the device's operation, allowing for easy power management.

Advantages and Disadvantages

Advantages: - Wide input and output voltage range - High efficiency conversion - Low quiescent current - Small package size

Disadvantages: - Limited maximum output current (1.2A) - Requires external components for operation

Working Principles

The ISL91110II2AZ-T is a buck-boost regulator, which means it can step up or step down the input voltage to provide a stable output voltage. It achieves this through a combination of inductive and capacitive energy storage and switching elements. The IC continuously monitors the output voltage and adjusts the duty cycle of the internal switches to maintain the desired output voltage.

Detailed Application Field Plans

The ISL91110II2AZ-T is commonly used in various applications, including but not limited to:

1. Portable Electronic Devices: Provides power management solutions for smartphones, tablets, and wearable devices.
2. IoT Devices: Enables efficient power conversion for Internet of Things (IoT) devices such as sensors, smart home devices, and wireless modules.
3. Battery-Powered Systems: Suitable for applications that require efficient power conversion from battery sources, such as portable medical devices and handheld instruments.

Detailed and Complete Alternative Models

1. ISL91110IRTAZ-T: Similar specifications and features, but with an adjustable output voltage range.
2. ISL91110IRTZ-T7A: Offers higher maximum output current (2A), suitable for applications with higher power requirements.
3. ISL91110IRTAZ-T13: Provides a wider input voltage range (1.8V to 6.0V) for compatibility with a broader range of power sources.

These alternative models offer similar functionality and can be considered based on specific application requirements.

Word count: 322 words