LTC3445EUF#PBF

Product Overview

Category

LTC3445EUF#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 to efficiently regulate and control power supply voltages.

Characteristics

• High efficiency power conversion
• Wide input voltage range
• Low quiescent current
• Small form factor
• Robust protection features

Package

LTC3445EUF#PBF is available in a small 4mm x 3mm DFN (Dual Flat No-Lead) package, which allows for easy integration into compact electronic designs.

Essence

The essence of LTC3445EUF#PBF lies in its ability to provide efficient power management solutions, ensuring stable and reliable power supply for electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Adjustable from 0.6V to VIN
• Maximum Output Current: 600mA
• Switching Frequency: Up to 2MHz
• Quiescent Current: 20µA (typical)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. SW: Switching node pin
4. FB: Feedback pin for output voltage regulation
5. EN: Enable pin for turning the device on/off

Functional Features

• Integrated synchronous buck regulator
• Adjustable output voltage through external resistors
• Soft-start feature for controlled startup
• Overcurrent protection
• Thermal shutdown protection
• Undervoltage lockout

Advantages and Disadvantages

Advantages

• High efficiency power conversion minimizes energy loss
• Wide input voltage range allows for compatibility with various power sources
• Small form factor enables space-saving designs
• Robust protection features enhance device reliability

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Lack of built-in voltage regulation presets may require additional external components for specific voltage requirements

Working Principles

LTC3445EUF#PBF operates as a synchronous buck regulator, converting the input voltage to a lower, regulated output voltage. The integrated control circuitry ensures efficient power conversion by adjusting the duty cycle of the internal switches. This regulation process maintains a stable output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

LTC3445EUF#PBF finds application in various electronic devices, including but not limited to: - Portable consumer electronics - Battery-powered devices - IoT (Internet of Things) devices - Wearable devices - Industrial automation systems

Detailed and Complete Alternative Models

1. LTC3445EUF#TRPBF: Similar to LTC3445EUF#PBF, but available in tape and reel packaging.
2. LTC3445EUF#5TRMPBF: Variant with extended temperature range (-40°C to 125°C).
3. LTC3445EUF#3.3PBF: Model specifically designed for 3.3V output voltage applications.

These alternative models offer similar functionality and characteristics, providing flexibility for different design requirements.

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