LTC1147IS8-5#PBF
Product Overview
Category
The LTC1147IS8-5#PBF belongs to the category of integrated circuits (ICs).
Use
This product is commonly used as a voltage step-up converter.
Characteristics
- Input Voltage Range: 1.6V to 5.5V
- Output Voltage Range: 2.5V to 5.25V
- Maximum Output Current: 100mA
- Switching Frequency: 1.2MHz
- Shutdown Current: 0.01µA
- Operating Temperature Range: -40°C to 85°C
Package
The LTC1147IS8-5#PBF is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.
Essence
The essence of this product lies in its ability to efficiently boost low input voltages to higher output voltages, making it suitable for various applications.
Packaging/Quantity
The LTC1147IS8-5#PBF is typically packaged in reels and comes in quantities of 2500 units per reel.
Specifications
- Input Voltage Range: 1.6V to 5.5V
- Output Voltage Range: 2.5V to 5.25V
- Maximum Output Current: 100mA
- Switching Frequency: 1.2MHz
- Shutdown Current: 0.01µA
- Operating Temperature Range: -40°C to 85°C
- Package Type: 8-pin SOIC
- Package Dimensions: 4.9mm x 3.9mm x 1.75mm
Detailed Pin Configuration
Pin Name | Description --- | --- VIN | Input Voltage GND | Ground SW | Switch Node FB | Feedback Pin SHDN | Shutdown Pin PGND | Power Ground VOUT | Output Voltage COMP | Compensation Pin
Functional Features
- High efficiency voltage step-up conversion
- Low shutdown current for power-saving applications
- Wide input voltage range for versatility
- Adjustable output voltage through external resistors
- Overcurrent and overtemperature protection
- Soft-start feature for controlled startup
Advantages
- Compact and space-saving package
- High efficiency conversion for improved power management
- Wide input voltage range allows compatibility with various power sources
- Shutdown mode minimizes power consumption during idle periods
- Overcurrent and overtemperature protection ensures safe operation
- Soft-start feature prevents excessive inrush current during startup
Disadvantages
- Limited maximum output current of 100mA
- Not suitable for high-power applications
- Requires external resistors for adjustable output voltage
Working Principles
The LTC1147IS8-5#PBF operates as a voltage step-up converter using a switching regulator topology. It utilizes an internal oscillator to control the switching frequency, which drives an external power switch. The input voltage is boosted to a higher output voltage by storing energy in an inductor and transferring it to the output capacitor.
During operation, the feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the power switch to maintain the desired output voltage. The compensation pin (COMP) is used to stabilize the control loop and optimize the converter's response.
Detailed Application Field Plans
The LTC1147IS8-5#PBF finds application in various fields, including:
- Battery-powered devices: Used to efficiently boost low battery voltages to power electronic circuits.
- Portable audio devices: Provides stable power supply for amplifiers, DACs, and other audio components.
- IoT devices: Enables efficient power management in small, battery-operated IoT devices.
- Wearable devices: Powers sensors, microcontrollers, and wireless modules in wearable technology.
- Automotive electronics: Used for voltage conversion in automotive applications with low power requirements.
Detailed and Complete Alternative Models
- LTC1147IS8-3.3#PBF: Similar to LTC1147IS8-5#PBF but with an output voltage range of 2.5V to 3.3V.
- LTC1147IS8-ADJ#PBF: Adjustable output voltage version with a wider output voltage range of 2.5V to 12V.
- LTC1147CS8-5#PBF: Similar specifications to LTC1147IS8-5#PBF but available in a different package (8-pin SOIC).
- LTC1147HS8-5#PBF: High-temperature grade version suitable for extended temperature range applications.
These alternative models provide similar functionality and can be considered based on specific application requirements.
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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LTC1147IS8-5#PBF i tekniska lösningar
Sure! Here are 10 common questions and answers related to the application of LTC1147IS8-5#PBF in technical solutions:
Q: What is the LTC1147IS8-5#PBF? A: The LTC1147IS8-5#PBF is a specific model of a low dropout linear regulator IC.
Q: What is the input voltage range for the LTC1147IS8-5#PBF? A: The input voltage range for this IC is typically between 2.7V and 16V.
Q: What is the output voltage of the LTC1147IS8-5#PBF? A: The output voltage of this IC is fixed at 5V.
Q: What is the maximum output current of the LTC1147IS8-5#PBF? A: The maximum output current is typically around 800mA.
Q: Can the LTC1147IS8-5#PBF be used in battery-powered applications? A: Yes, it can be used in battery-powered applications as long as the input voltage is within the specified range.
Q: Is the LTC1147IS8-5#PBF suitable for low-power devices? A: Yes, it is suitable for low-power devices due to its low dropout voltage and low quiescent current.
Q: Does the LTC1147IS8-5#PBF have built-in protection features? A: Yes, it has built-in features like thermal shutdown and current limit protection.
Q: Can the LTC1147IS8-5#PBF be used in automotive applications? A: Yes, it is suitable for automotive applications as it can handle wide temperature ranges and has built-in protection features.
Q: Can the LTC1147IS8-5#PBF be used in both step-up and step-down voltage applications? A: No, it is specifically designed for step-down voltage applications.
Q: Are there any recommended external components to use with the LTC1147IS8-5#PBF? A: Yes, typical external components include input and output capacitors for stability and noise filtering.
Please note that these answers are general and may vary depending on specific application requirements.