ISL61851LCBZ

Product Overview

Category

ISL61851LCBZ belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a voltage regulator in various electronic devices.

Characteristics

• High efficiency
• Low dropout voltage
• Wide input voltage range
• Overcurrent and thermal protection
• Adjustable output voltage

Package

ISL61851LCBZ is available in a small outline package (SOIC) with 8 pins.

Essence

The essence of ISL61851LCBZ lies in its ability to regulate voltage efficiently and reliably.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 1.2V to 3.3V
• Dropout Voltage: 200mV at 500mA
• Quiescent Current: 45µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

ISL61851LCBZ has the following pin configuration:

```

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| | --| VOUT | --| VIN | --| GND | --| EN | --| FB | --| COMP | --| SS | |___________| ```

Functional Features

1. High Efficiency: The ISL61851LCBZ offers high efficiency, minimizing power loss during voltage regulation.
2. Low Dropout Voltage: With a low dropout voltage, this IC can maintain stable output voltage even when the input voltage is close to the desired output voltage.
3. Wide Input Voltage Range: It can operate within a wide input voltage range, making it suitable for various applications.
4. Overcurrent and Thermal Protection: The IC incorporates overcurrent and thermal protection mechanisms to ensure safe operation under different conditions.
5. Adjustable Output Voltage: The output voltage can be adjusted within a specified range, providing flexibility in different applications.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Wide input voltage range allows for versatile use.
• Overcurrent and thermal protection enhance safety.
• Adjustable output voltage provides flexibility.

Disadvantages

• Limited output voltage range may not meet the requirements of certain applications.
• Higher cost compared to some alternative models.

Working Principles

ISL61851LCBZ operates based on the principle of voltage regulation using a feedback mechanism. The feedback pin (FB) monitors the output voltage and adjusts the internal circuitry to maintain a stable output voltage. The enable pin (EN) controls the operation of the IC, allowing it to be turned on or off as required.

Detailed Application Field Plans

ISL61851LCBZ finds applications in various electronic devices, including but not limited to: 1. Mobile phones 2. Tablets 3. Portable media players 4. Wireless communication devices 5. Battery-powered devices

Detailed and Complete Alternative Models

1. LM1117-3.3: This voltage regulator offers similar characteristics and is widely used in various electronic devices.
2. LT1763: Another alternative with adjustable output voltage and low dropout voltage.
3. TPS79633: A voltage regulator with high efficiency and a wide input voltage range.

These alternative models provide similar functionality and can be considered as substitutes for ISL61851LCBZ in different applications.

In conclusion, ISL61851LCBZ is an integrated circuit voltage regulator that offers high efficiency, low dropout voltage, and a wide input voltage range. It provides reliable voltage regulation with overcurrent and thermal protection. While it has some limitations, it finds applications in various electronic devices and can be replaced by alternative models with similar features.