SP1491ECN-L/TR

Introduction

The SP1491ECN-L/TR is a versatile integrated circuit that belongs to the category of voltage regulators. This device is commonly used in various electronic applications to regulate and stabilize voltage levels, ensuring consistent and reliable performance of connected components.

Basic Information Overview

• Category: Voltage Regulator
• Use: Stabilizing and regulating voltage levels in electronic circuits
• Characteristics: High precision, low dropout voltage, thermal shutdown protection
• Package: SOT-23-5
• Essence: Ensuring stable power supply for sensitive electronic components
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: Adjustable from 1.2V to 5.5V
• Output Current: Up to 150mA
• Dropout Voltage: 130mV at 100mA load
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The SP1491ECN-L/TR features a standard SOT-23-5 package with the following pin configuration: 1. VIN (Input Voltage) 2. GND (Ground) 3. NC (No Connection) 4. VOUT (Output Voltage) 5. ADJ (Adjustment)

Functional Features

• High Precision: Provides accurate and stable output voltage regulation
• Low Dropout Voltage: Minimizes power loss and improves efficiency
• Thermal Shutdown Protection: Safeguards the device from overheating

Advantages and Disadvantages

Advantages

• Compact form factor
• Wide input voltage range
• Low quiescent current

Disadvantages

• Limited output current capacity
• Not suitable for high-power applications

Working Principles

The SP1491ECN-L/TR operates by comparing the output voltage to a reference voltage and adjusting the pass element to maintain a constant output voltage. It utilizes a feedback mechanism to continuously monitor and regulate the output voltage, ensuring stability under varying load conditions.

Detailed Application Field Plans

This voltage regulator is well-suited for a wide range of applications, including: - Battery-powered devices - Portable electronics - IoT (Internet of Things) devices - Sensor modules - Wearable technology

Detailed and Complete Alternative Models

• SPX3819M5-L/TR: Similar SOT-23-5 package, higher output current
• LM2937IMPX-3.3/NOPB: Slightly larger SOT-223 package, lower dropout voltage

In conclusion, the SP1491ECN-L/TR offers precise voltage regulation in a compact form factor, making it an ideal choice for various low-power electronic applications.

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