LM27402SQX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Wide input voltage range - Low dropout voltage - Adjustable output voltage - Current limit protection - Thermal shutdown protection

Package: 20-pin WQFN package

Essence: The LM27402SQX/NOPB is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The LM27402SQX/NOPB is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 36V
• Output Voltage Range: 1.2V to 20V
• Output Current: Up to 3A
• Dropout Voltage: 300mV at 3A
• Quiescent Current: 100µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM27402SQX/NOPB has the following pin configuration:

1. VIN: Input voltage pin
2. EN: Enable pin
3. SS/TR: Soft-start/Tracking pin
4. FB: Feedback pin
5. COMP: Compensation pin
6. VOS: Voltage offset pin
7. PGND: Power ground pin
8. AGND: Analog ground pin
9. BOOT: Bootstrap pin
10. SW: Switch pin
11. SW: Switch pin
12. SW: Switch pin
13. SW: Switch pin
14. SW: Switch pin
15. SW: Switch pin
16. SW: Switch pin
17. SW: Switch pin
18. SW: Switch pin
19. SW: Switch pin
20. SW: Switch pin

Functional Features

• Wide input voltage range allows for versatile applications
• High efficiency ensures minimal power loss
• Adjustable output voltage provides flexibility
• Current limit protection prevents damage to the IC and connected devices
• Thermal shutdown protection safeguards against overheating

Advantages and Disadvantages

Advantages: - High efficiency operation - Wide input voltage range - Adjustable output voltage - Current limit and thermal shutdown protection

Disadvantages: - Limited output current capacity (up to 3A)

Working Principles

The LM27402SQX/NOPB operates as a step-down voltage regulator. It takes an input voltage from the VIN pin, regulates it, and provides a stable output voltage at the FB pin. The feedback mechanism adjusts the duty cycle of the internal switch to maintain the desired output voltage.

Detailed Application Field Plans

The LM27402SQX/NOPB can be used in various applications, including but not limited to: - Power supplies for industrial equipment - Automotive electronics - Telecommunications systems - Consumer electronics - LED lighting

Detailed and Complete Alternative Models

Some alternative models to the LM27402SQX/NOPB include: - LM2596S-ADJ - LM317T - LM7805 - LT1084CP-12 - TPS5430DDAR

These models offer similar functionality and can be considered as alternatives based on specific requirements and design constraints.

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