LT4256-1IS8#PBF

Product Overview

Category

The LT4256-1IS8#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various electronic devices and systems to regulate and control power supply, ensuring efficient and reliable operation.

Characteristics

• The LT4256-1IS8#PBF offers high precision and accuracy in power management.
• It provides excellent voltage regulation and current limiting capabilities.
• This IC has low power consumption and operates at high efficiency.
• It is designed to withstand harsh environmental conditions, making it suitable for industrial applications.
• The LT4256-1IS8#PBF supports a wide input voltage range, enhancing its versatility.

Package

The LT4256-1IS8#PBF is available in an 8-pin small outline integrated circuit (SOIC) package. This package ensures easy integration into various circuit designs.

Essence

The essence of the LT4256-1IS8#PBF lies in its ability to efficiently manage power supply, providing stable and regulated voltages to different components within an electronic system.

Packaging/Quantity

This IC is typically sold in reels or tubes, with each reel containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 3A
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to 125°C
• Package Type: SOIC-8

Detailed Pin Configuration

The LT4256-1IS8#PBF features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. EN: Enable pin for controlling the IC's operation
4. FB: Feedback pin for voltage regulation
5. SS: Soft-start pin for gradual power-up
6. PG: Power good indicator pin
7. VOUT: Output voltage pin
8. SW: Switching node pin

Functional Features

• Voltage Regulation: The LT4256-1IS8#PBF ensures precise and stable output voltage regulation, maintaining a consistent power supply to connected devices.
• Current Limiting: It incorporates current limiting functionality to protect both the IC and the load from excessive current flow.
• Soft-Start: The soft-start feature allows for a gradual increase in output voltage during power-up, preventing sudden voltage spikes that could damage sensitive components.
• Power Good Indicator: The power good pin provides an indication of the output voltage status, ensuring proper system initialization.

Advantages and Disadvantages

Advantages

• High precision and accuracy in voltage regulation
• Wide input voltage range enhances versatility
• Low power consumption and high efficiency
• Robust design suitable for industrial applications

Disadvantages

• Limited maximum output current (3A)
• Requires external components for complete power management solution

Working Principles

The LT4256-1IS8#PBF operates based on a switching regulator topology. It utilizes a combination of control circuitry, feedback mechanisms, and power MOSFETs to regulate the input voltage and provide a stable output voltage. By continuously monitoring the feedback signal, the IC adjusts the duty cycle of the switching waveform to maintain the desired output voltage.

Detailed Application Field Plans

The LT4256-1IS8#PBF finds application in various fields, including but not limited to: - Industrial automation systems - Telecommunications equipment - Automotive electronics - Portable electronic devices - Power supply modules

Detailed and Complete Alternative Models

• LT4256-2IS8#PBF: Similar to the LT4256-1IS8#PBF, but with a higher maximum output current of 5A.
• LT4256-3IS8#PBF: Similar to the LT4256-1IS8#PBF, but with a lower maximum output current of 2A.
• LT4256-4IS8#PBF: Similar to the LT4256-1IS8#PBF, but with additional features such as adjustable soft-start time and programmable current limit.

These alternative models provide flexibility in choosing the appropriate IC based on specific application requirements.

In conclusion, the LT4256-1IS8#PBF is a highly reliable and efficient integrated circuit designed for power management applications. With its precise voltage regulation, wide input voltage range, and robust design, it offers numerous advantages for various electronic systems. However, it is important to consider the limited maximum output current and the need for external components when utilizing this IC.