LT3494EDDB#TRM

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High efficiency, compact size, wide input voltage range
• Package: DFN-10
• Essence: Step-up DC/DC converter
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: Up to 34V
• Switching Frequency: 1MHz
• Maximum Output Current: 1A
• Efficiency: Up to 92%
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3494EDDB#TRM IC has the following pin configuration:

1. VIN: Input voltage pin
2. SW: Switching node connection for inductor
3. GND: Ground reference pin
4. FB: Feedback pin for output voltage regulation
5. EN: Enable pin for turning on/off the IC
6. VOUT: Output voltage pin
7. SS: Soft-start capacitor connection pin
8. PGND: Power ground reference pin
9. LX: Inductor connection pin
10. BST: Boost capacitor connection pin

Functional Features

• Wide input voltage range allows flexibility in power supply design
• High efficiency ensures minimal power loss
• Compact size enables space-saving designs
• Integrated soft-start feature prevents excessive inrush current
• Overcurrent protection safeguards against load faults
• Thermal shutdown protection prevents overheating

Advantages and Disadvantages

Advantages: - High efficiency results in longer battery life - Wide input voltage range accommodates various power sources - Compact size allows for versatile applications - Integrated protection features enhance reliability

Disadvantages: - Limited maximum output current may restrict certain high-power applications - Higher cost compared to non-integrated power management solutions

Working Principles

The LT3494EDDB#TRM is a step-up DC/DC converter that converts a lower input voltage to a higher output voltage. It utilizes a switching regulator topology to efficiently transfer power from the input source to the load. The IC incorporates a high-frequency oscillator, control circuitry, and power switches to regulate the output voltage.

When the input voltage is applied, the internal oscillator generates a high-frequency signal that controls the switching of the power switches. This switching action allows energy to be transferred from the input to the output through an inductor and a boost capacitor. The feedback pin monitors the output voltage and adjusts the duty cycle of the switches to maintain a stable output voltage.

Detailed Application Field Plans

The LT3494EDDB#TRM is widely used in various applications requiring efficient power management. Some of the common application fields include:

1. Battery-powered devices: Portable electronics, handheld instruments, wireless sensors
2. Automotive systems: LED lighting, infotainment systems, dashboard displays
3. Industrial equipment: Control systems, motor drives, instrumentation
4. Lighting applications: LED backlighting, flashlights, emergency lighting
5. Communication systems: Wireless routers, base stations, satellite communication

Detailed and Complete Alternative Models

1. LT3494EDCB#TRM: Similar specifications but different package (DFN-12)
2. LT3494EEDDB#TRM: Enhanced version with higher maximum output current (1.5A)
3. LT3494HEDDB#TRM: High-temperature variant for extended operating temperature range (-40°C to 150°C)
4. LT3494MPEDDB#TRM: Military-grade version with enhanced ruggedness and reliability

(Note: The above alternative models are provided as examples and may not represent an exhaustive list of available alternatives.)

This entry provides an overview of the LT3494EDDB#TRM IC, including its product details, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models. With its high efficiency, compact size, and wide input voltage range, the LT3494EDDB#TRM is a versatile power management solution suitable for various electronic systems.