LD39020ADTPU18R

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low Dropout Regulator
• Package: TPU (Thin Power Quad Flat Package)
• Essence: LD39020ADTPU18R is a low dropout regulator IC designed for power management applications. It provides a stable output voltage with minimal voltage drop, making it suitable for various electronic devices.
• Packaging/Quantity: The LD39020ADTPU18R is available in a TPU package and is typically sold in reels or trays.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 1.8V
• Output Current: Up to 200mA
• Dropout Voltage: 150mV at 100mA
• Quiescent Current: 40µA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LD39020ADTPU18R has the following pin configuration:

```

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| | --| VOUT | --| GND | --| VIN | --| EN | |___________| ```

• VOUT: Output Voltage
• GND: Ground
• VIN: Input Voltage
• EN: Enable Pin

Functional Features

• Low dropout voltage: The LD39020ADTPU18R maintains a stable output voltage even when the input voltage is close to the desired output voltage.
• Low quiescent current: The IC consumes minimal current when in standby mode, reducing power consumption.
• Overcurrent and thermal protection: The LD39020ADTPU18R includes built-in protection mechanisms to prevent damage from excessive current or high temperatures.
• Fast transient response: The IC quickly responds to changes in load conditions, ensuring a stable output voltage.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - Low quiescent current minimizes power consumption. - Built-in protection mechanisms enhance reliability. - Fast transient response provides stability during load variations.

Disadvantages: - Limited output current capacity (up to 200mA). - Restricted input voltage range (2.5V to 6.5V).

Working Principles

The LD39020ADTPU18R operates as a low dropout regulator by using a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The enable pin allows for control of the regulator's operation.

Detailed Application Field Plans

The LD39020ADTPU18R is commonly used in various electronic devices that require stable power supply, such as:

1. Mobile phones
2. Tablets
3. Portable media players
4. Digital cameras
5. Wireless communication modules

Detailed and Complete Alternative Models

1. LD39020ADTPU33R: Provides an output voltage of 3.3V.
2. LD39020ADTPU50R: Provides an output voltage of 5.0V.
3. LD39020ADTPU25R: Provides an output voltage of 2.5V.

These alternative models offer different output voltages to cater to specific application requirements.

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