LD3985M27R

Product Overview

Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: Low Dropout, 2.7V Fixed Output Voltage
Package: SOT-23
Essence: LD3985M27R is a voltage regulator IC designed to provide a stable output voltage of 2.7V with low dropout voltage.
Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

Input Voltage Range: 2.5V to 6V
Output Voltage: 2.7V
Dropout Voltage: 200mV at 150mA load current
Maximum Output Current: 150mA
Quiescent Current: 75µA
Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD3985M27R has the following pin configuration:

VIN: Input Voltage
GND: Ground
VOUT: Output Voltage

Functional Features

Low dropout voltage ensures efficient regulation even when the input voltage is close to the output voltage.
Stable output voltage of 2.7V provides a reliable power source for various applications.
Low quiescent current minimizes power consumption during standby or idle modes.
Built-in thermal shutdown protection prevents overheating and damage to the IC.

Advantages and Disadvantages

Advantages: - Low dropout voltage allows for efficient regulation. - Stable output voltage ensures reliable performance. - Low quiescent current reduces power consumption. - Thermal shutdown protection enhances safety.

Disadvantages: - Limited maximum output current of 150mA may not be suitable for high-power applications. - Restricted input voltage range of 2.5V to 6V may limit compatibility with certain systems.

Working Principles

The LD3985M27R is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly to maintain a stable output voltage of 2.7V.

Detailed Application Field Plans

The LD3985M27R is commonly used in various electronic devices and applications, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Digital cameras - Wireless communication modules

Detailed and Complete Alternative Models

LD3985M25R: Provides a fixed output voltage of 2.5V.
LD3985M30R: Provides a fixed output voltage of 3.0V.
LD3985M33R: Provides a fixed output voltage of 3.3V.
LD3985M50R: Provides a fixed output voltage of 5.0V.

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

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van LD3985M27R in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of LD3985M27R in technical solutions:

Q: What is LD3985M27R? A: LD3985M27R is a low dropout (LDO) voltage regulator IC that provides a fixed output voltage of 2.7V.
Q: What is the input voltage range for LD3985M27R? A: The input voltage range for LD3985M27R is typically between 2.5V and 6V.
Q: What is the maximum output current of LD3985M27R? A: LD3985M27R can provide a maximum output current of 150mA.
Q: What is the dropout voltage of LD3985M27R? A: The dropout voltage of LD3985M27R is typically around 200mV at full load.
Q: Can LD3985M27R be used in battery-powered applications? A: Yes, LD3985M27R is suitable for battery-powered applications due to its low dropout voltage and low quiescent current.
Q: Is LD3985M27R short-circuit protected? A: Yes, LD3985M27R has built-in short-circuit protection to prevent damage in case of a short circuit on the output.
Q: Does LD3985M27R require any external components for stability? A: Yes, LD3985M27R requires an output capacitor for stability. A 1µF ceramic capacitor is recommended.
Q: Can LD3985M27R handle high temperatures? A: Yes, LD3985M27R has a wide operating temperature range of -40°C to 125°C, making it suitable for various environments.
Q: What is the typical quiescent current of LD3985M27R? A: The typical quiescent current of LD3985M27R is around 50µA, which helps in reducing power consumption.
Q: Can LD3985M27R be used in automotive applications? A: Yes, LD3985M27R is automotive-grade and can be used in automotive applications that require a stable 2.7V voltage regulator.

Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.