LTC1473LCGN#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low Dropout Linear Regulator
• Package: 16-Lead SSOP (Shrink Small Outline Package)
• Essence: Provides regulated output voltage with low dropout voltage
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 7V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 300mV at 500mA
• Maximum Output Current: 500mA
• Line Regulation: ±0.02% typical
• Load Regulation: ±0.05% typical
• Quiescent Current: 75µA typical
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC1473LCGN#TRPBF has a 16-lead SSOP package with the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. VOUT: Output Voltage
4. BYPASS: Bypass Capacitor Connection
5. SHDN: Shutdown Control
6. NC: No Connection
7. NC: No Connection
8. NC: No Connection
9. NC: No Connection
10. NC: No Connection
11. NC: No Connection
12. NC: No Connection
13. NC: No Connection
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection

Functional Features

• Low dropout voltage allows operation with small input-output differentials
• Low quiescent current extends battery life in portable applications
• Excellent line and load regulation ensures stable output voltage
• Thermal shutdown and current limit protection for enhanced reliability
• Shutdown mode for power-saving when the regulator is not in use

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient power management - Wide input voltage range allows flexibility in various applications - Excellent line and load regulation ensures stable output voltage - Thermal shutdown and current limit protection enhance reliability

Disadvantages: - Limited maximum output current of 500mA may not be suitable for high-power applications - Package size may not be compatible with all circuit board designs

Working Principles

The LTC1473LCGN#TRPBF is a low dropout linear regulator that provides a regulated output voltage even when the input voltage is slightly higher than the desired output voltage. It achieves this by utilizing a PNP pass transistor that operates in its active region, minimizing the dropout voltage.

The regulator maintains a stable output voltage by continuously adjusting the pass transistor to compensate for changes in the input voltage and load conditions. This ensures that the output voltage remains within the specified range, even with varying input and load requirements.

Detailed Application Field Plans

The LTC1473LCGN#TRPBF is commonly used in various applications where a stable and regulated output voltage is required. Some typical application fields include:

1. Battery-Powered Devices: Portable electronics such as smartphones, tablets, and wearable devices benefit from the low dropout voltage and low quiescent current of the LTC1473LCGN#TRPBF, extending battery life.

2. Industrial Control Systems: The regulator's excellent line and load regulation make it suitable for powering control systems, sensors, and actuators in industrial environments.

3. Automotive Electronics: With its wide input voltage range and thermal shutdown protection, the LTC1473LCGN#TRPBF can be used in automotive applications, including infotainment systems, lighting controls, and engine management systems.

4. Communication Equipment: The regulator's stability and low dropout voltage make it ideal for powering communication devices such as routers, switches, and wireless access points.

Detailed and Complete Alternative Models

1. LT1763: Low Dropout Regulator with Adjustable Output Voltage
2. LT3080: High Current Adjustable Linear Regulator
3. LM1117: Low Dropout Voltage Regulator with Fixed Output Voltage Options
4. MAX603: Ultra-Low Dropout Voltage Regulator with Low Quiescent Current

These alternative models offer similar functionality to the LTC1473LCGN#TRPBF and can be considered based on specific application requirements.

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