L4925PD

Product Overview

Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: High precision, low dropout voltage, adjustable output voltage, current limiting, thermal shutdown
Package: PowerSO-10 package
Essence: Linear voltage regulator
Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

Input Voltage: 4.75V to 26V
Output Voltage Range: 1.2V to 20V
Output Current: Up to 1.5A
Dropout Voltage: 300mV at 1A
Line Regulation: 0.04% typical
Load Regulation: 0.1% typical
Quiescent Current: 100µA typical
Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4925PD has a total of 10 pins:

VIN - Input voltage pin
GND - Ground pin
SENSE - Sense pin for voltage regulation
ADJ - Adjustable pin for setting the output voltage
VOUT - Output voltage pin
NC - No connection pin
NC - No connection pin
NC - No connection pin
NC - No connection pin
ENABLE - Enable pin for turning the regulator on/off

Functional Features

High precision voltage regulation
Low dropout voltage for efficient operation
Adjustable output voltage for flexibility
Current limiting to protect connected devices
Thermal shutdown to prevent overheating

Advantages and Disadvantages

Advantages

High precision voltage regulation ensures stable output
Low dropout voltage allows for efficient power conversion
Adjustable output voltage provides flexibility for various applications
Current limiting protects connected devices from excessive current
Thermal shutdown prevents overheating and damage to the regulator

Disadvantages

Limited maximum output current of 1.5A
Requires external components for proper operation
Higher cost compared to non-linear regulators

Working Principles

The L4925PD is a linear voltage regulator that uses a feedback mechanism to maintain a stable output voltage. It compares the output voltage with a reference voltage and adjusts the internal circuitry to achieve the desired output. The regulator operates by continuously adjusting the pass transistor to regulate the voltage across the load.

Detailed Application Field Plans

The L4925PD can be used in various applications where a stable and adjustable voltage supply is required. Some potential application fields include:

Power supplies for microcontrollers and other digital circuits
Battery-powered devices requiring efficient voltage conversion
Automotive electronics for voltage regulation in vehicles
Industrial control systems for stable power delivery
Consumer electronics such as audio amplifiers and portable devices

Detailed and Complete Alternative Models

LM317 - Adjustable voltage regulator with similar features
LT1086 - Low dropout voltage regulator with higher output current capability
LM1117 - Fixed voltage regulator with low dropout voltage
LM7805 - Fixed voltage regulator with high current capability
TPS7A4700 - Ultra-low noise voltage regulator for sensitive applications

These alternative models offer different specifications and features, allowing users to choose the most suitable option for their specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací L4925PD v technických řešeních

Sure! Here are 10 common questions and answers related to the application of L4925PD in technical solutions:

Q: What is L4925PD? A: L4925PD is a voltage regulator IC (integrated circuit) commonly used in technical solutions to regulate and stabilize voltage levels.
Q: What is the input voltage range for L4925PD? A: The input voltage range for L4925PD is typically between 4.75V and 40V.
Q: What is the output voltage range of L4925PD? A: The output voltage range of L4925PD can be adjusted from 1.25V to 37V using external resistors.
Q: What is the maximum output current that L4925PD can handle? A: L4925PD can handle a maximum output current of up to 1.5A.
Q: Is L4925PD suitable for low-power applications? A: Yes, L4925PD is suitable for low-power applications as it has a low quiescent current consumption.
Q: Can L4925PD handle both step-up and step-down voltage regulation? A: No, L4925PD is primarily designed for step-down voltage regulation (buck converter).
Q: Does L4925PD have built-in protection features? A: Yes, L4925PD includes built-in protection features such as thermal shutdown, current limiting, and short-circuit protection.
Q: Can L4925PD operate in high-temperature environments? A: Yes, L4925PD is designed to operate in a wide temperature range, typically from -40°C to +125°C.
Q: What type of package does L4925PD come in? A: L4925PD is available in a TO-220 package, which is a common through-hole package for ICs.
Q: What are some typical applications of L4925PD? A: L4925PD is commonly used in various technical solutions such as power supplies, battery chargers, automotive electronics, and industrial control systems.

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