LD2985AM36R

Product Overview

Category

LD2985AM36R belongs to the category of voltage regulators.

Use

It is used to regulate and stabilize voltage levels in electronic circuits.

Characteristics

• Low dropout voltage
• Low quiescent current
• High output voltage accuracy
• Thermal shutdown protection
• Short-circuit current limit
• Wide input voltage range

Package

LD2985AM36R is available in a small surface-mount SOT-23 package.

Essence

The essence of LD2985AM36R lies in its ability to provide stable and regulated voltage output for various electronic applications.

Packaging/Quantity

LD2985AM36R is typically packaged in reels, with each reel containing a specific quantity of units. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage: 3.6V
• Dropout Voltage: 300mV (typical)
• Quiescent Current: 50µA (typical)
• Output Current: Up to 150mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

LD2985AM36R has three pins:

1. VIN (Input Voltage): This pin is connected to the input voltage source.
2. GND (Ground): This pin is connected to the ground reference.
3. VOUT (Output Voltage): This pin provides the regulated output voltage.

Functional Features

• Low Dropout Voltage: LD2985AM36R exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: The device consumes minimal current when in standby mode, reducing power consumption and extending battery life in portable applications.
• High Output Voltage Accuracy: LD2985AM36R provides precise and stable output voltage, ensuring reliable performance of connected electronic components.
• Thermal Shutdown Protection: The regulator incorporates a thermal shutdown mechanism to prevent damage due to excessive temperature.
• Short-Circuit Current Limit: LD2985AM36R has built-in protection against short-circuit conditions, safeguarding the device and the connected circuitry.
• Wide Input Voltage Range: The regulator can accept a wide range of input voltages, making it suitable for various applications.

Advantages and Disadvantages

Advantages

• Low dropout voltage ensures efficient regulation.
• Low quiescent current for reduced power consumption.
• High output voltage accuracy for reliable performance.
• Thermal shutdown protection prevents overheating.
• Short-circuit current limit protects the device and connected circuitry.
• Wide input voltage range allows versatility in application.

Disadvantages

• Limited output current capacity (up to 150mA).
• SOT-23 package may require surface-mount soldering expertise.

Working Principles

LD2985AM36R operates based on the principle of linear voltage regulation. It utilizes a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. This feedback mechanism maintains a constant output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

LD2985AM36R finds applications in various electronic systems where stable and regulated voltage supply is crucial. Some potential application fields include:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices benefit from LD2985AM36R's low quiescent current and efficient voltage regulation.
2. Industrial control systems: LD2985AM36R can be used in automation equipment, sensors, and other industrial control systems that require reliable and accurate voltage regulation.
3. Automotive electronics: The regulator can be employed in automotive applications, such as infotainment systems, dashboard displays, and lighting control modules.
4. IoT devices: LD2985AM36R is suitable for powering various Internet of Things (IoT) devices, including smart home appliances, environmental sensors, and wireless communication modules.

Detailed and Complete Alternative Models

1. LD1117S33TR: A similar voltage regulator with a fixed output voltage of 3.3V.
2. LM317T: A versatile adjustable voltage regulator capable of providing various output voltages within a specified range.
3. LP2950ACZ-3.3: Another low dropout voltage regulator with a fixed output voltage of 3.3V.

These alternative models offer similar functionality and can be considered as substitutes for LD2985AM36R in specific applications.

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