LTC1503IS8-1.8#TRPBF

Product Overview

Category

The LTC1503IS8-1.8#TRPBF belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulator ICs.

Use

This product is primarily used for voltage regulation in various electronic devices and systems.

Characteristics

• Input Voltage Range: 2.5V to 10V
• Output Voltage: 1.8V
• Output Current: Up to 500mA
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 85°C
• Package Type: SOT-23-8
• RoHS Compliant: Yes

Packaging/Quantity

The LTC1503IS8-1.8#TRPBF is available in a tape and reel packaging, with 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 10V
• Output Voltage: 1.8V ±2%
• Output Current: Up to 500mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 50µA
• Line Regulation: ±0.02%/V
• Load Regulation: ±0.1%
• Ripple Rejection: 70dB
• Shutdown Current: <1µA
• Thermal Shutdown: Yes
• Short-Circuit Protection: Yes

Detailed Pin Configuration

The LTC1503IS8-1.8#TRPBF has a total of 8 pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. SHDN: Shutdown control pin
4. FB: Feedback pin
5. VOUT: Output voltage pin
6. SW: Switching node pin
7. PGND: Power ground pin
8. NC: No connection pin

Functional Features

• Low quiescent current for improved efficiency
• Wide input voltage range allows for versatile applications
• Excellent line and load regulation for stable output voltage
• Thermal shutdown protection prevents overheating
• Short-circuit protection ensures device safety

Advantages and Disadvantages

Advantages

• High efficiency operation
• Compact SOT-23-8 package
• RoHS compliant
• Wide input voltage range
• Low dropout voltage

Disadvantages

• Limited output current capacity (up to 500mA)

Working Principles

The LTC1503IS8-1.8#TRPBF is a step-down DC-DC converter that utilizes a synchronous rectification topology. It regulates the input voltage to a fixed 1.8V output voltage with high efficiency. The internal control circuitry adjusts the duty cycle of the switching transistor to maintain the desired output voltage, compensating for variations in input voltage and load conditions.

Detailed Application Field Plans

The LTC1503IS8-1.8#TRPBF finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable electronics - Industrial control systems - Automotive electronics - Telecommunications equipment

Detailed and Complete Alternative Models

1. LM1117-1.8: Fixed 1.8V voltage regulator IC, available in TO-220 package.
2. LT1761-1.8: Low dropout linear regulator IC, provides a fixed 1.8V output voltage, available in SOT-23 package.
3. TPS54318: Step-down DC-DC converter IC, adjustable output voltage range, available in QFN package.

These alternative models offer similar functionality and can be considered as substitutes for the LTC1503IS8-1.8#TRPBF in various applications.

In conclusion, the LTC1503IS8-1.8#TRPBF is a voltage regulator IC that provides efficient and stable voltage regulation for a wide range of electronic devices and systems. Its compact package, wide input voltage range, and low dropout voltage make it suitable for various applications. However, its limited output current capacity may restrict its use in high-power applications.