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LD2985AM18R
Product Overview
Category
LD2985AM18R belongs to the category of voltage regulators.
Use
It is commonly used to regulate and stabilize voltage in electronic circuits.
Characteristics
- Low dropout voltage
- High output voltage accuracy
- Low quiescent current
- Thermal shutdown protection
- Short-circuit current limit
Package
LD2985AM18R is available in a small surface-mount package, such as SOT-23 or TO-92.
Essence
The essence of LD2985AM18R lies in its ability to provide a stable and regulated output voltage despite fluctuations in input voltage.
Packaging/Quantity
LD2985AM18R is typically sold in reels or tubes containing a specific quantity, such as 3000 units per reel.
Specifications
- Input Voltage Range: 2.5V to 16V
- Output Voltage: 1.8V
- Dropout Voltage: 200mV (typical)
- Quiescent Current: 50µA (typical)
- Maximum Output Current: 150mA
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
LD2985AM18R has three pins:
- VIN: Input voltage pin
- GND: Ground pin
- VOUT: Output voltage pin
Functional Features
- Low dropout voltage ensures efficient regulation even with low input-output voltage differentials.
- High output voltage accuracy guarantees precise voltage regulation.
- Low quiescent current minimizes power consumption when the regulator is idle.
- Thermal shutdown protection prevents damage due to excessive temperature.
- Short-circuit current limit protects the regulator and connected components from excessive current flow.
Advantages and Disadvantages
Advantages
- Reliable voltage regulation
- Compact size
- Wide operating temperature range
- Low power consumption
Disadvantages
- Limited maximum output current
- Requires external capacitors for stability
Working Principles
LD2985AM18R operates based on the principle of a linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output.
Detailed Application Field Plans
LD2985AM18R finds applications in various electronic devices, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Digital cameras - Wireless communication systems
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to LD2985AM18R are: - LM1117-1.8 - LT1763-1.8 - MCP1700-1.8
These models offer similar functionality and characteristics, providing options for different design requirements.
In conclusion, LD2985AM18R is a voltage regulator known for its low dropout voltage, high output voltage accuracy, and low quiescent current. It is commonly used in battery-powered devices, portable audio players, mobile phones, and other electronic devices. While it has limitations such as limited maximum output current and the need for external capacitors, it offers reliable voltage regulation in a compact package.
Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van LD2985AM18R in technische oplossingen
Sure! Here are 10 common questions and answers related to the application of LD2985AM18R in technical solutions:
Q: What is LD2985AM18R? A: LD2985AM18R is a low-dropout voltage regulator IC that provides a fixed output voltage of 1.8V.
Q: What is the input voltage range for LD2985AM18R? A: The input voltage range for LD2985AM18R is typically between 2.5V and 16V.
Q: What is the maximum output current of LD2985AM18R? A: LD2985AM18R can provide a maximum output current of 150mA.
Q: Can LD2985AM18R be used in battery-powered applications? A: Yes, LD2985AM18R can be used in battery-powered applications as it has a low dropout voltage and low quiescent current.
Q: Is LD2985AM18R suitable for noise-sensitive applications? A: Yes, LD2985AM18R is designed with low output noise, making it suitable for noise-sensitive applications.
Q: Does LD2985AM18R have built-in thermal protection? A: Yes, LD2985AM18R has built-in thermal shutdown protection to prevent overheating.
Q: Can LD2985AM18R operate in high-temperature environments? A: LD2985AM18R has an operating temperature range of -40°C to +125°C, allowing it to function in high-temperature environments.
Q: What is the dropout voltage of LD2985AM18R? A: The typical dropout voltage of LD2985AM18R is around 300mV at 150mA load.
Q: Can LD2985AM18R be used in both analog and digital circuits? A: Yes, LD2985AM18R can be used in both analog and digital circuits as a stable voltage reference.
Q: Is LD2985AM18R available in different package options? A: Yes, LD2985AM18R is available in various package options, including SOT-23 and DFN, to suit different application requirements.
Please note that the answers provided here are general and may vary depending on the specific datasheet and manufacturer's specifications for LD2985AM18R.