LTC4217CFE#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High Efficiency - Low Quiescent Current - Overcurrent Protection - Thermal Shutdown Protection

Package: 20-Lead TSSOP

Essence: The LTC4217CFE#PBF is a power management IC designed to provide efficient and reliable power distribution and protection in various electronic systems.

Packaging/Quantity: The LTC4217CFE#PBF is available in a 20-Lead Thin Shrink Small Outline Package (TSSOP). It is typically sold in reels of 2500 units.

Specifications

The LTC4217CFE#PBF has the following specifications:

• Input Voltage Range: 2.9V to 5.5V
• Output Voltage Range: 0.8V to VIN
• Maximum Continuous Output Current: 3A
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC4217CFE#PBF features a 20-Lead TSSOP package with the following pin configuration:

1. GATE1
2. GATE2
3. GND
4. VCC
5. PGND
6. FB
7. SS
8. ITH
9. ILIM
10. VOUT
11. VIN
12. EN
13. FLT
14. OV
15. UV
16. OCSET
17. OC
18. TSD
19. NC
20. NC

Functional Features

The LTC4217CFE#PBF offers the following functional features:

1. Overcurrent Protection: The IC monitors the output current and shuts down the power path if it exceeds a set threshold, protecting the system from damage.

2. Thermal Shutdown Protection: The IC includes a thermal shutdown feature that disables the power path when the junction temperature exceeds a safe limit, preventing overheating.

3. Soft-Start (SS) Function: The soft-start function gradually ramps up the output voltage to prevent inrush current and voltage spikes during startup.

4. Undervoltage (UV) and Overvoltage (OV) Protection: The IC monitors the input voltage and shuts down the power path if it falls below or exceeds the specified thresholds, ensuring safe operation.

5. Adjustable Current Limit (ILIM): The ILIM pin allows the user to set the maximum output current limit according to the requirements of the system.

Advantages and Disadvantages

Advantages: - High efficiency power management - Comprehensive protection features - Compact package size - Wide input and output voltage range

Disadvantages: - Limited maximum continuous output current (3A)

Working Principles

The LTC4217CFE#PBF operates by regulating the power distribution between the input and output sides. It continuously monitors the output current, input voltage, and temperature to ensure safe and efficient power delivery. The IC incorporates various protection mechanisms such as overcurrent, thermal shutdown, undervoltage, and overvoltage protection to safeguard the system components.

Detailed Application Field Plans

The LTC4217CFE#PBF is widely used in applications where efficient power management and protection are crucial. Some common application fields include:

1. Portable Electronic Devices: The IC can be utilized in smartphones, tablets, portable gaming consoles, and other battery-powered devices to regulate power distribution and protect against overcurrent and overheating.

2. Industrial Automation: The LTC4217CFE#PBF can be employed in industrial automation systems to manage power supply and protect sensitive equipment from voltage fluctuations and excessive current.

3. Telecommunications: The IC finds application in telecommunications infrastructure, such as base stations and network switches, to ensure stable power delivery and prevent damage due to overcurrent or thermal issues.

4. Automotive Electronics: The LTC4217CFE#PBF can be integrated into automotive electronic systems to regulate power distribution and provide protection against voltage spikes and excessive current.

Detailed and Complete Alternative Models

1. LTC4215CFE#PBF: Similar to the LTC4217CFE#PBF, this IC offers power management and protection features but with a lower maximum continuous output current of 2A.

2. LTC4218CFE#PBF: This alternative model provides similar functionality to the LTC4217CFE#PBF but includes additional features such as reverse current protection and adjustable input undervoltage lockout.

3. LTC4219CFE#PBF: This IC is designed for higher power applications, offering a maximum continuous output current of 5A while maintaining similar power management and protection capabilities.

In conclusion