LTC3455EUF-1#PBF

Product Overview

Category

The LTC3455EUF-1#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 efficiently regulate and control power supply voltages.

Characteristics

• High efficiency: The LTC3455EUF-1#PBF offers high conversion efficiency, minimizing power losses during voltage regulation.
• Wide input voltage range: It can accept a wide range of input voltages, making it suitable for diverse power sources.
• Compact package: The LTC3455EUF-1#PBF comes in a small form factor package, enabling space-saving designs.
• Low quiescent current: It exhibits low power consumption when in standby or idle mode.

Package and Quantity

The LTC3455EUF-1#PBF is available in a 16-pin QFN (Quad Flat No-Lead) package. It is typically sold in reels containing a specified quantity of units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Adjustable from 0.6V to VIN
• Maximum Output Current: 500mA
• Switching Frequency: 1.2MHz
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC3455EUF-1#PBF features 16 pins arranged as follows:

Pin 1: VIN Pin 2: GND Pin 3: SW Pin 4: FB Pin 5: EN Pin 6: VOUT ...

Functional Features

• Integrated Power MOSFET: The LTC3455EUF-1#PBF incorporates an internal power MOSFET, simplifying the circuit design and reducing external component count.
• Adjustable Output Voltage: The output voltage can be easily adjusted using an external resistor divider network.
• Soft-Start Function: It includes a soft-start feature to minimize inrush current during power-up, enhancing system reliability.
• Overcurrent Protection: The LTC3455EUF-1#PBF incorporates overcurrent protection to safeguard against excessive load currents.

Advantages

• High efficiency results in reduced power dissipation and longer battery life.
• Wide input voltage range allows compatibility with various power sources.
• Compact package enables space-constrained designs.
• Low quiescent current minimizes standby power consumption.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires additional external components for proper operation.

Working Principles

The LTC3455EUF-1#PBF operates as a step-down (buck) switching regulator. It utilizes pulse-width modulation (PWM) techniques to efficiently convert the input voltage to the desired output voltage. The internal control circuitry adjusts the duty cycle of the switching transistor to regulate the output voltage within the specified range.

Application Field Plans

The LTC3455EUF-1#PBF finds applications in various fields, including: - Portable electronic devices - Battery-powered systems - IoT (Internet of Things) devices - Industrial automation - Automotive electronics

Alternative Models

For similar power management requirements, alternative models to consider include: - LTC3455EUF-2#PBF - LTC3455EUF-3#PBF - LTC3455EUF-4#PBF

These alternatives offer similar functionality but may have variations in specifications or package options.

In conclusion, the LTC3455EUF-1#PBF is a highly efficient integrated circuit designed for power management applications. Its compact size, wide input voltage range, and low quiescent current make it suitable for various electronic devices. However, its limited maximum output current and the need for additional external components should be considered in specific applications.

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