ISL9003IEBZ-T

Product Overview

Category: Integrated Voltage Regulator
Use: Power Management
Characteristics: High Efficiency, Low Quiescent Current
Package: 10 Ld 3x3 DFN (Leadless)
Essence: Voltage Regulator
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 300mA
• Dropout Voltage: 200mV at 300mA
• Quiescent Current: 17µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VIN: Input Voltage
2. GND: Ground
3. EN: Enable Pin
4. FB: Feedback Pin
5. VOUT: Output Voltage

Functional Features

• Integrated low dropout voltage regulator
• High efficiency with low quiescent current
• Wide input voltage range for versatile applications
• Adjustable output voltage through feedback pin
• Thermal shutdown and current limit protection
• Small form factor package for space-constrained designs

Advantages

• High efficiency results in reduced power consumption
• Low quiescent current prolongs battery life
• Wide input voltage range allows compatibility with various power sources
• Adjustable output voltage provides flexibility in system design
• Thermal shutdown and current limit protection enhance reliability
• Small package size enables compact and portable devices

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Dropout voltage of 200mV may affect performance in low voltage scenarios

Working Principles

The ISL9003IEBZ-T is an integrated voltage regulator designed to provide a stable output voltage from a varying input voltage source. It utilizes a low dropout architecture, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage. The device achieves high efficiency by minimizing power dissipation during regulation.

The regulator operates by comparing the feedback voltage (FB) with a reference voltage to adjust the duty cycle of an internal switching element. This control mechanism ensures that the output voltage remains constant despite changes in the input voltage or load conditions.

Detailed Application Field Plans

The ISL9003IEBZ-T finds applications in various fields where efficient power management is crucial. Some potential application areas include:

1. Portable Electronics: Smartphones, tablets, and wearable devices can benefit from the low quiescent current and small form factor of the ISL9003IEBZ-T.
2. IoT Devices: Battery-powered Internet of Things (IoT) devices often require efficient power management to extend battery life, making the ISL9003IEBZ-T suitable for such applications.
3. Industrial Control Systems: The regulator's wide input voltage range and thermal protection make it suitable for industrial control systems that operate in harsh environments.
4. Automotive Electronics: With its ability to handle automotive voltage fluctuations, the ISL9003IEBZ-T can be used in various automotive electronics applications.

Detailed and Complete Alternative Models

1. ISL9003IRZ-T: Similar to ISL9003IEBZ-T but in a 8 Ld 2x2 DFN package.
2. ISL9003IAZ-T: Similar to ISL9003IEBZ-T but with an adjustable output voltage range of 0.6V to 5.5V.
3. ISL9003ILZ-T: Similar to ISL9003IEBZ-T but with a lower maximum output current of 150mA.

These alternative models offer similar functionality with slight variations in package size, output voltage range, and maximum output current.

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