ISL9008AIEFZ-T

Product Overview

Category: Integrated Voltage Regulator
Use: Power management
Characteristics: High efficiency, low noise, small form factor
Package: 3mm x 3mm DFN
Essence: Voltage regulator IC
Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 0.6V to 3.6V
• Maximum Output Current: 1.5A
• Efficiency: Up to 95%
• Quiescent Current: 25µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL9008AIEFZ-T features a 10-pin configuration as follows:

1. EN (Enable) - Enable pin for turning the regulator on/off.
2. VIN (Input Voltage) - Connects to the input voltage source.
3. GND (Ground) - Ground reference for the regulator.
4. PG (Power Good) - Indicates if the output voltage is within regulation limits.
5. VOUT (Output Voltage) - Provides the regulated output voltage.
6. FB (Feedback) - Connects to an external resistor divider network for setting the output voltage.
7. SS (Soft-Start) - Controls the soft-start time of the regulator.
8. BST (Bootstrap) - Connects to an external capacitor for boosting the gate voltage of the internal high-side MOSFET.
9. SW (Switch) - Connects to the inductor and provides switching functionality.
10. AGND (Analog Ground) - Ground reference for the analog circuitry.

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• High efficiency ensures minimal power loss and longer battery life.
• Low noise output for sensitive applications.
• Integrated protection features such as overcurrent and thermal shutdown.
• Soft-start functionality prevents inrush current during startup.

Advantages

• Small form factor enables space-saving designs.
• High efficiency reduces power consumption.
• Wide input voltage range provides flexibility in power source selection.
• Integrated protection features enhance system reliability.
• Low noise output is suitable for noise-sensitive applications.

Disadvantages

• Maximum output current limited to 1.5A, may not be suitable for high-power applications.
• Operating temperature range limited to -40°C to +85°C, may not be suitable for extreme environments.

Working Principles

The ISL9008AIEFZ-T is a voltage regulator IC that converts an input voltage within the range of 2.5V to 5.5V to a regulated output voltage between 0.6V and 3.6V. It utilizes a switching regulator architecture to achieve high efficiency and low power dissipation. The regulator incorporates a feedback mechanism that adjusts the duty cycle of the internal MOSFET switch to maintain the desired output voltage. Various protection features are integrated to safeguard the regulator and the connected load from overcurrent and excessive temperature.

Detailed Application Field Plans

The ISL9008AIEFZ-T is commonly used in various applications, including:

1. Portable electronic devices: Provides efficient power management for smartphones, tablets, and wearable devices.
2. IoT devices: Suitable for powering sensors, wireless modules, and microcontrollers in IoT applications.
3. Industrial equipment: Enables reliable power supply for control systems, motor drives, and communication modules.
4. Automotive electronics: Used in infotainment systems, advanced driver-assistance systems (ADAS), and lighting controls.
5. Medical devices: Provides stable power for medical instruments, patient monitoring systems, and diagnostic equipment.

Detailed and Complete Alternative Models

1. ISL9008AIEZ-T: Similar to ISL9008AIEFZ-T, but with a different package (SOT-23).
2. ISL9008AIENZ-T: Similar to ISL9008AIEFZ-T, but with a different package (QFN).
3. ISL9008AIEVZ-T: Similar to ISL9008AIEFZ-T, but with a different package (TSOT-23).

These alternative models offer similar functionality and characteristics, providing options for different PCB layouts and assembly processes.

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