LTC1147LCS8-3.3#TRPBF

Product Overview

Category

The LTC1147LCS8-3.3#TRPBF belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Voltage Regulation: The LTC1147LCS8-3.3#TRPBF provides a regulated output voltage of 3.3V.
• Efficiency: It offers high efficiency, ensuring minimal power loss during voltage regulation.
• Low Dropout: This voltage regulator has a low dropout voltage, enabling it to operate even when the input voltage is close to the desired output voltage.
• Current Limiting: The LTC1147LCS8-3.3#TRPBF incorporates current limiting features to protect the circuit from excessive current flow.
• Thermal Shutdown: It includes thermal shutdown protection to prevent overheating and damage to the device.

Package

The LTC1147LCS8-3.3#TRPBF comes in an 8-pin small outline integrated circuit (SOIC) package.

Essence

The essence of the LTC1147LCS8-3.3#TRPBF is its ability to regulate and stabilize voltage levels in electronic circuits efficiently and reliably.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 15V
• Output Voltage: 3.3V
• Output Current: Up to 500mA
• Dropout Voltage: 300mV at 500mA
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for voltage regulation
4. SHDN: Shutdown pin (active low)
5. VOUT: Regulated output voltage pin
6. NC: No connection
7. NC: No connection
8. VIN: Input voltage pin

Functional Features

• Voltage Regulation: The LTC1147LCS8-3.3#TRPBF maintains a stable output voltage of 3.3V, regardless of input voltage fluctuations.
• Current Limiting: It incorporates current limiting functionality to protect the circuit from excessive current flow, preventing damage to the device and connected components.
• Thermal Shutdown: The thermal shutdown feature safeguards the regulator from overheating by disabling its operation when the temperature exceeds a certain threshold.

Advantages and Disadvantages

Advantages

• High efficiency ensures minimal power loss during voltage regulation.
• Low dropout voltage allows operation with input voltages close to the desired output voltage.
• Current limiting protects the circuit from excessive current flow.
• Thermal shutdown prevents overheating and damage to the device.

Disadvantages

• Limited output current capacity (up to 500mA).
• Restricted operating temperature range (-40°C to 85°C).

Working Principles

The LTC1147LCS8-3.3#TRPBF operates based on a feedback control mechanism. It compares the output voltage with a reference voltage and adjusts the internal circuitry to maintain a constant output voltage of 3.3V. The device continuously monitors the input voltage, regulating it to ensure a stable output voltage even under varying load conditions.

Detailed Application Field Plans

The LTC1147LCS8-3.3#TRPBF finds applications in various electronic systems that require a regulated 3.3V power supply. Some common application fields include:

1. Microcontrollers: Providing a stable voltage source for microcontrollers, ensuring reliable operation.
2. Communication Systems: Regulating voltage for communication modules, such as wireless transceivers and networking devices.
3. Consumer Electronics: Powering low-power devices like portable audio players, digital cameras, and handheld gaming consoles.
4. Industrial Control Systems: Voltage regulation for control systems, sensors, and actuators in industrial automation applications.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
2. LT1763-3.3: Offers higher output current capacity and lower dropout voltage compared to LTC1147LCS8-3.3#TRPBF.
3. MCP1700-3302E: An alternative option with a lower quiescent current and wider operating temperature range.

These alternative models provide similar functionality and can be considered based on specific application requirements.

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