LDS3985M50R

Product Overview

Category: Integrated Circuit
Use: Voltage Regulator
Characteristics: High precision, low dropout voltage, small package size
Package: SOT-23
Essence: Regulates input voltage to a stable output voltage
Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

Input Voltage Range: 2.5V - 6.5V
Output Voltage Range: 1.2V - 5.0V
Dropout Voltage: 200mV @ 100mA
Quiescent Current: 75µA
Load Regulation: ±0.5%
Line Regulation: ±0.3%
Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LDS3985M50R has three pins:

VIN (Pin 1): Input voltage pin.
GND (Pin 2): Ground reference pin.
VOUT (Pin 3): Output voltage pin.

Functional Features

High precision voltage regulation.
Low dropout voltage ensures efficient power conversion.
Excellent load and line regulation for stable output voltage.
Low quiescent current for power-saving applications.
Thermal shutdown and current limit protection.

Advantages and Disadvantages

Advantages

Small package size allows for space-constrained designs.
Wide input voltage range provides flexibility in various applications.
High precision and low dropout voltage ensure accurate and efficient voltage regulation.
Low quiescent current minimizes power consumption.

Disadvantages

Limited output current capability.
Not suitable for high-power applications.

Working Principles

The LDS3985M50R is a voltage regulator that maintains a stable output voltage regardless of fluctuations in the input voltage. It utilizes a feedback mechanism to continuously adjust the internal circuitry, ensuring the desired output voltage is maintained. The dropout voltage is kept low to minimize power dissipation and maximize efficiency.

Detailed Application Field Plans

The LDS3985M50R is commonly used in various electronic devices and systems, including:

Battery-powered devices: Portable electronics, such as smartphones, tablets, and wearable devices, benefit from the low dropout voltage and low quiescent current of the LDS3985M50R.
Industrial applications: The voltage regulator is suitable for powering sensors, actuators, and other components in industrial automation systems.
Automotive electronics: The small package size and wide input voltage range make it ideal for automotive applications, such as infotainment systems and lighting control modules.

Detailed and Complete Alternative Models

LDS3985M33R: Similar to LDS3985M50R but with an output voltage range of 1.2V - 3.3V.
LDS3985MADJ: Adjustable output voltage version of the LDS3985 series.
LDS3985M25R: Similar to LDS3985M50R but with an output voltage range of 1.2V - 2.5V.

These alternative models offer similar features and characteristics, providing options for different voltage requirements in various applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LDS3985M50R v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LDS3985M50R in technical solutions:

Q: What is LDS3985M50R? A: LDS3985M50R is a specific model of voltage regulator used in various technical applications.
Q: What is the input voltage range for LDS3985M50R? A: The input voltage range for LDS3985M50R is typically between 2.5V and 6V.
Q: What is the output voltage of LDS3985M50R? A: The output voltage of LDS3985M50R is fixed at 5V.
Q: What is the maximum output current of LDS3985M50R? A: The maximum output current of LDS3985M50R is typically around 500mA.
Q: Can LDS3985M50R handle reverse polarity protection? A: No, LDS3985M50R does not have built-in reverse polarity protection. External measures need to be taken to protect against reverse polarity.
Q: Is LDS3985M50R suitable for battery-powered applications? A: Yes, LDS3985M50R is commonly used in battery-powered applications due to its low dropout voltage and low quiescent current.
Q: Does LDS3985M50R require any external components for operation? A: Yes, LDS3985M50R requires input and output capacitors for stable operation. Refer to the datasheet for recommended values.
Q: Can LDS3985M50R operate in a wide temperature range? A: Yes, LDS3985M50R is designed to operate in a wide temperature range, typically from -40°C to 125°C.
Q: Is LDS3985M50R suitable for automotive applications? A: Yes, LDS3985M50R is often used in automotive applications due to its ability to withstand high temperatures and voltage transients.
Q: Can multiple LDS3985M50R regulators be connected in parallel for higher current output? A: Yes, multiple LDS3985M50R regulators can be connected in parallel to increase the overall current output capacity. However, proper thermal management should be considered.

Please note that these answers are general and may vary depending on the specific application and requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for accurate information.