L4987CPT33TR

Product Overview

Category: Integrated Circuit (IC)
Use: Power Management
Characteristics: High efficiency, low power consumption
Package: Surface Mount Technology (SMT)
Essence: Voltage Regulator
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

Input Voltage: 4.5V to 40V
Output Voltage: 3.3V
Output Current: Up to 2A
Switching Frequency: 200kHz to 1MHz
Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4987CPT33TR has the following pin configuration:

VIN: Input voltage
GND: Ground
COMP: Compensation pin for feedback control
FB: Feedback pin for output voltage regulation
VCC: Supply voltage for internal circuitry
EN: Enable pin for turning on/off the regulator
PGND: Power ground
SW: Switching node for connecting inductor and diode
SS/TR: Soft-start and tracking pin

Functional Features

High efficiency voltage regulation
Wide input voltage range
Overcurrent protection
Thermal shutdown protection
Adjustable soft-start time
Enable/disable control

Advantages and Disadvantages

Advantages

High efficiency results in lower power consumption
Wide input voltage range allows for versatile applications
Overcurrent and thermal shutdown protection ensure safety
Adjustable soft-start time prevents excessive inrush current
Enable/disable control provides flexibility in operation

Disadvantages

Limited output current capacity (up to 2A)
Requires external components for complete voltage regulation circuit

Working Principles

The L4987CPT33TR is a voltage regulator IC that converts an input voltage within the range of 4.5V to 40V into a stable output voltage of 3.3V. It utilizes a switching regulator topology to achieve high efficiency power conversion. The IC operates by controlling the duty cycle of the internal power switch, which in turn regulates the output voltage.

Detailed Application Field Plans

The L4987CPT33TR is commonly used in various applications where efficient voltage regulation is required. Some of the typical application fields include:

Power supplies for industrial equipment
Automotive electronics
Telecommunications equipment
Consumer electronics
LED lighting systems

Detailed and Complete Alternative Models

LM2576-3.3: Similar voltage regulator IC with adjustable output voltage
LT1084CT-3.3: Linear voltage regulator IC with fixed 3.3V output
TPS54332: Switching regulator IC with adjustable output voltage and higher current capacity

These alternative models offer similar functionality and can be considered as substitutes for the L4987CPT33TR depending on specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací L4987CPT33TR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of L4987CPT33TR in technical solutions:

Q: What is L4987CPT33TR? A: L4987CPT33TR is a specific model of voltage regulator IC (integrated circuit) designed for use in technical solutions.
Q: What is the purpose of L4987CPT33TR? A: The purpose of L4987CPT33TR is to regulate and stabilize the voltage output in electronic circuits, ensuring a consistent power supply.
Q: What is the input voltage range for L4987CPT33TR? A: The input voltage range for L4987CPT33TR typically varies from 4.5V to 60V.
Q: What is the output voltage of L4987CPT33TR? A: The output voltage of L4987CPT33TR is fixed at 3.3V, making it suitable for applications requiring a stable 3.3V power source.
Q: What is the maximum current L4987CPT33TR can handle? A: L4987CPT33TR can handle a maximum current of around 3A, which makes it suitable for various low to medium power applications.
Q: Is L4987CPT33TR suitable for battery-powered devices? A: Yes, L4987CPT33TR is suitable for battery-powered devices as it can efficiently regulate the voltage from a battery source.
Q: Does L4987CPT33TR have built-in protection features? A: Yes, L4987CPT33TR typically includes built-in protection features such as over-temperature protection, short-circuit protection, and over-current protection.
Q: Can L4987CPT33TR be used in automotive applications? A: Yes, L4987CPT33TR is designed to withstand the harsh conditions of automotive environments, making it suitable for automotive applications.
Q: What is the typical efficiency of L4987CPT33TR? A: The typical efficiency of L4987CPT33TR is around 90%, ensuring minimal power loss during voltage regulation.
Q: Are there any specific application notes or reference designs available for L4987CPT33TR? A: Yes, the manufacturer of L4987CPT33TR typically provides application notes and reference designs that can help users implement the IC effectively in their technical solutions.

Please note that the answers provided here are general and may vary depending on the specific datasheet and manufacturer's documentation for L4987CPT33TR.