LTC3862IFE#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High Efficiency - Wide Input Voltage Range - Synchronous Buck Controller - Adjustable Output Voltage - Current Limit Protection

Package: 16-Lead TSSOP

Essence: The LTC3862IFE#PBF is a high-performance synchronous buck controller IC used for power management applications. It offers a wide input voltage range and adjustable output voltage, making it suitable for various power supply designs.

Packaging/Quantity: The LTC3862IFE#PBF is available in a 16-Lead Thin Shrink Small Outline Package (TSSOP). It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 4V to 38V
• Output Voltage Range: 0.6V to VIN
• Switching Frequency: Up to 1MHz
• Maximum Duty Cycle: 90%
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC3862IFE#PBF has the following pin configuration:

1. VCC - Power Supply Input
2. GND - Ground
3. FB - Feedback Voltage Input
4. SS - Soft-Start Control
5. SYNC - External Clock Synchronization
6. RT - Oscillator Frequency Setting
7. COMP - Compensation Node
8. ITH - Current Sense Threshold
9. SW - Switch Node
10. PGND - Power Ground
11. BOOT - Bootstrap Capacitor Connection
12. LX - Inductor Connection
13. VOUT - Output Voltage
14. EN - Enable Control
15. OVLO - Overvoltage Lockout
16. UVLO - Undervoltage Lockout

Functional Features

• High Efficiency: The LTC3862IFE#PBF offers high efficiency due to its synchronous buck controller architecture.
• Adjustable Output Voltage: The output voltage can be easily adjusted using the feedback voltage input (FB) pin.
• Current Limit Protection: The IC includes current limit protection to prevent excessive current flow.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile power supply designs. - High efficiency results in reduced power losses. - Adjustable output voltage provides flexibility in various applications. - Current limit protection ensures safe operation.

Disadvantages: - Limited availability of alternative models with similar specifications. - Higher cost compared to non-synchronous buck controllers.

Working Principles

The LTC3862IFE#PBF operates as a synchronous buck controller, converting a higher input voltage to a lower output voltage. It utilizes pulse-width modulation (PWM) to regulate the output voltage. The feedback voltage input (FB) pin is used to set the desired output voltage. The IC also includes various protection features such as overvoltage lockout (OVLO) and undervoltage lockout (UVLO) to ensure safe operation.

Detailed Application Field Plans

The LTC3862IFE#PBF can be used in a wide range of power management applications, including but not limited to: - DC-DC converters - Power supplies for industrial equipment - Automotive electronics - Telecommunications systems - Battery charging circuits

Detailed and Complete Alternative Models

While there are limited alternative models with identical specifications, some alternative buck controller ICs that offer similar features include: - LT8610ABEMSE#PBF - LT8611ABEMSE#PBF - LT8612ABEMSE#PBF

These alternatives provide comparable performance and can be considered as substitutes for the LTC3862IFE#PBF in certain applications.

In conclusion, the LTC3862IFE#PBF is a high-performance synchronous buck controller IC used for power management applications. Its wide input voltage range, adjustable output voltage, and various protection features make it suitable for a variety of applications. While alternative models are limited, there are some viable substitutes available in the market.