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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技術ソリューションにおける L4987CPT33TR の適用に関連する 10 件の一般的な質問と回答をリストします。
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.