ISL88003IE44Z-T7A

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Current limit protection - Thermal shutdown protection

Package: 44-Lead QFN (Quad Flat No-Lead)

Essence: The ISL88003IE44Z-T7A is a voltage regulator IC designed to provide a stable and regulated output voltage from a varying input voltage source.

Packaging/Quantity: The ISL88003IE44Z-T7A is typically sold in reels containing 250 units per reel.

Specifications

Input Voltage Range: 2.5V to 6V
Output Voltage Range: 0.8V to 5.5V
Maximum Output Current: 3A
Dropout Voltage: 200mV at 3A
Quiescent Current: 100µA
Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL88003IE44Z-T7A has a total of 44 pins, which are configured as follows:

VIN: Input voltage pin
EN: Enable pin
FB: Feedback pin
GND: Ground pin
VOUT: Output voltage pin
COMP: Compensation pin
SS: Soft-start pin
PGND: Power ground pin
BST: Bootstrap pin
AGND: Analog ground pin
NC: No connection pin

(Note: The remaining pins are not listed here for brevity.)

Functional Features

High Efficiency: The ISL88003IE44Z-T7A utilizes advanced circuitry to achieve high efficiency, minimizing power losses.
Low Dropout Voltage: The regulator maintains a low dropout voltage even under heavy load conditions, ensuring stable output voltage.
Wide Input Voltage Range: The IC can accept input voltages ranging from 2.5V to 6V, making it suitable for various applications.
Adjustable Output Voltage: The output voltage can be adjusted within the range of 0.8V to 5.5V, providing flexibility for different requirements.
Current Limit Protection: The IC incorporates current limit protection to prevent excessive current flow and protect connected devices.
Thermal Shutdown Protection: In case of overheating, the regulator automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input voltage range allows for versatile use - Adjustable output voltage provides flexibility - Current limit and thermal shutdown protection enhance reliability

Disadvantages: - Limited maximum output current (3A) - Requires external components for proper operation

Working Principles

The ISL88003IE44Z-T7A operates as a linear voltage regulator. It takes an input voltage and regulates it to provide a stable output voltage. The internal circuitry includes a voltage reference, error amplifier, feedback loop, and pass transistor. By comparing the feedback voltage with the reference voltage, the error amplifier adjusts the pass transistor to maintain the desired output voltage.

Detailed Application Field Plans

The ISL88003IE44Z-T7A is commonly used in various electronic devices and systems that require a regulated power supply. Some typical application fields include:

Portable electronic devices (e.g., smartphones, tablets)
Industrial control systems
Automotive electronics
Power management modules
Battery-powered devices

Detailed and Complete Alternative Models

ISL88001IE44Z-T7A: Similar voltage regulator IC with a lower maximum output current of 1A.
ISL88002IE44Z-T7A: Similar voltage regulator IC with a higher maximum output current of 2A.
ISL88004IE44Z-T7A: Similar voltage regulator IC with a higher maximum output current of 4A.

(Note: The list above includes only a few alternative models for reference.)

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan ISL88003IE44Z-T7A dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of ISL88003IE44Z-T7A in technical solutions:

Q: What is ISL88003IE44Z-T7A? A: ISL88003IE44Z-T7A is a specific model of voltage supervisor IC (Integrated Circuit) manufactured by Renesas Electronics. It provides power supply monitoring and reset generation functions.
Q: What are the typical applications of ISL88003IE44Z-T7A? A: ISL88003IE44Z-T7A is commonly used in various technical solutions where reliable power supply monitoring and reset generation are required, such as industrial automation, automotive systems, consumer electronics, and medical devices.
Q: How does ISL88003IE44Z-T7A monitor the power supply? A: ISL88003IE44Z-T7A monitors the power supply voltage by comparing it with a fixed threshold voltage. If the power supply voltage falls below the threshold, it triggers a reset signal.
Q: Can ISL88003IE44Z-T7A be used with different power supply voltages? A: Yes, ISL88003IE44Z-T7A can be used with a wide range of power supply voltages, typically from 1.8V to 5V.
Q: Does ISL88003IE44Z-T7A support adjustable threshold voltage? A: No, ISL88003IE44Z-T7A has a fixed threshold voltage of 4.4V.
Q: What is the maximum operating temperature range for ISL88003IE44Z-T7A? A: The maximum operating temperature range for ISL88003IE44Z-T7A is typically -40°C to +85°C.
Q: Can ISL88003IE44Z-T7A generate a manual reset signal? A: Yes, ISL88003IE44Z-T7A has an active-low RESET output pin that can be used to generate a manual reset signal when pulled low.
Q: Does ISL88003IE44Z-T7A have any additional features? A: Yes, ISL88003IE44Z-T7A includes a watchdog timer function that can be used to monitor the system's operation and generate a reset if necessary.
Q: What is the package type of ISL88003IE44Z-T7A? A: ISL88003IE44Z-T7A is available in a 4-pin SOT-143 package.
Q: Is ISL88003IE44Z-T7A RoHS compliant? A: Yes, ISL88003IE44Z-T7A is RoHS (Restriction of Hazardous Substances) compliant, which means it meets the environmental standards set by the European Union.

Please note that the answers provided here are general and may vary depending on the specific datasheet and application requirements.