LT1175MPQ#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, adjustable output voltage, current limiting, thermal shutdown
• Package: 16-pin plastic dual in-line package (PDIP)
• Essence: Linear Technology voltage regulator
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Input Voltage Range: 4.2V to 60V
• Output Voltage Range: 1.25V to 57V
• Output Current: Up to 500mA
• Dropout Voltage: 1.2V at 500mA
• Line Regulation: 0.015% typical
• Load Regulation: 0.1% typical
• Quiescent Current: 1.6mA typical
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT1175MPQ#TRPBF has a 16-pin PDIP package with the following pin configuration:

1. VOUT: Output Voltage
2. GND: Ground
3. ADJ: Adjustable Output Voltage
4. SHDN: Shutdown Control
5. FB: Feedback Input
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. VIN: Input Voltage
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection

Functional Features

• Adjustable output voltage through the ADJ pin
• Low dropout voltage allows operation with small input-output differentials
• Current limiting protects the regulator and load from excessive currents
• Thermal shutdown prevents overheating of the IC

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Adjustable output voltage - Current limiting protection - Thermal shutdown protection

Disadvantages: - Limited output current (up to 500mA) - PDIP package may not be suitable for space-constrained applications

Working Principles

The LT1175MPQ#TRPBF is a linear voltage regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage, and adjusts the pass transistor accordingly to maintain a stable output voltage. The adjustable output voltage feature allows users to set the desired voltage level using an external resistor connected to the ADJ pin.

Detailed Application Field Plans

The LT1175MPQ#TRPBF is commonly used in various applications, including:

1. Power supplies for industrial equipment
2. Battery-powered systems
3. Automotive electronics
4. Telecommunications equipment
5. Portable devices
6. Medical instruments

Detailed and Complete Alternative Models

1. LM317: Adjustable voltage regulator with similar features and pin configuration.
2. LT1084: Low dropout voltage regulator with higher output current capability.
3. LM7805: Fixed output voltage regulator with 5V output and different pin configuration.

These alternative models offer similar functionality and can be considered as substitutes for the LT1175MPQ#TRPBF in specific applications.

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