LTC1147CS8-5#PBF

Product Overview

Category

The LTC1147CS8-5#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is commonly used in various electronic devices and systems to regulate and control power supply voltages efficiently.

Characteristics

• High efficiency: The LTC1147CS8-5#PBF offers high conversion efficiency, minimizing power losses during voltage regulation.
• Low quiescent current: It has a low quiescent current, ensuring minimal power consumption when the device is in standby or idle mode.
• Wide input voltage range: The product can handle a wide range of input voltages, making it suitable for diverse applications.
• Adjustable output voltage: The output voltage can be easily adjusted to meet specific requirements.
• Overcurrent protection: The LTC1147CS8-5#PBF incorporates overcurrent protection, safeguarding the device and the connected circuitry from damage.

Package

The LTC1147CS8-5#PBF is available in an 8-pin small outline integrated circuit (SOIC) package. This package provides compactness and ease of integration into various electronic systems.

Essence

The essence of the LTC1147CS8-5#PBF lies in its ability to efficiently regulate and control power supply voltages, ensuring stable and reliable operation of electronic devices.

Packaging/Quantity

The product is typically packaged in reels or tubes, with each reel or tube containing a specified quantity of LTC1147CS8-5#PBF ICs. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 2.5V to 10V
• Output Voltage Range: 1.25V to 9.8V
• Quiescent Current: 50µA
• Maximum Output Current: 500mA
• Switching Frequency: 1.2MHz

Detailed Pin Configuration

The LTC1147CS8-5#PBF has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. FB (Feedback)
4. SW (Switch)
5. SS (Soft-Start)
6. VOUT (Output Voltage)
7. COMP (Compensation)
8. SHDN (Shutdown)

Functional Features

• Voltage Regulation: The LTC1147CS8-5#PBF provides precise voltage regulation, maintaining a stable output voltage even under varying load conditions.
• Soft-Start: The soft-start feature ensures a gradual increase in output voltage during startup, preventing excessive current surges.
• Overcurrent Protection: The device incorporates overcurrent protection, automatically limiting the output current to prevent damage to the IC and connected components.
• Shutdown Mode: The LTC1147CS8-5#PBF can be put into a low-power shutdown mode, reducing power consumption when the device is not in use.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power losses.
• Wide input voltage range allows for versatile applications.
• Adjustable output voltage meets specific requirements.
• Overcurrent protection safeguards the device and connected circuitry.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Requires external components for proper operation.

Working Principles

The LTC1147CS8-5#PBF operates based on a switching regulator topology. It utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage. By rapidly switching the internal power MOSFET, it efficiently converts the input voltage to the desired output voltage level. The feedback mechanism continuously monitors the output voltage and adjusts the duty cycle of the switching signal to maintain a stable output.

Detailed Application Field Plans

The LTC1147CS8-5#PBF finds applications in various electronic systems, including but not limited to: - Battery-powered devices - Portable electronics - Industrial control systems - Automotive electronics - Telecommunications equipment

Detailed and Complete Alternative Models

1. LT1763CS8-5#PBF: This IC offers similar functionality with a higher maximum output current of 1A.
2. LT3080EDD#PBF: A versatile linear regulator IC suitable for applications requiring high output current and low dropout voltage.
3. LM2576T-5.0/NOPB: A popular buck converter IC with a fixed 5V output voltage, ideal for simple power supply designs.

These alternative models provide options with varying specifications and features, allowing designers to choose the most suitable solution for their specific requirements.

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