LTC3814IFE-5#TRPBF

Product Overview

Category

The LTC3814IFE-5#TRPBF 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 efficiently regulate and control power supply voltages.

Characteristics

• High efficiency: The LTC3814IFE-5#TRPBF offers high conversion efficiency, minimizing power losses during voltage regulation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Precise output voltage regulation: The IC provides accurate and stable output voltage regulation, ensuring reliable performance of the powered device.
• Fast transient response: It exhibits excellent transient response characteristics, enabling quick adaptation to load changes.
• Low quiescent current: The LTC3814IFE-5#TRPBF has low quiescent current consumption, reducing power wastage during idle periods.

Package and Quantity

The LTC3814IFE-5#TRPBF is available in a small form factor package, typically a 16-pin TSSOP (Thin Shrink Small Outline Package). It is usually supplied in tape and reel packaging, with a standard quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 5A
• Switching Frequency: Adjustable up to 1MHz
• Operating Temperature Range: -40°C to 125°C
• Control Interface: PWM (Pulse Width Modulation)
• Protection Features: Overcurrent protection, overvoltage protection, undervoltage lockout

Pin Configuration

The LTC3814IFE-5#TRPBF features a 16-pin TSSOP package with the following pin configuration:

1. VIN: Input voltage
2. GND: Ground reference
3. FB: Feedback pin for output voltage regulation
4. SS: Soft-start capacitor connection
5. SYNC: Synchronization input for external clock
6. VCC: Supply voltage for internal control circuitry
7. PGND: Power ground
8. SW: Switching node connection
9. SW: Switching node connection
10. COMP: Compensation pin for stability optimization
11. RT/CLK: External resistor or clock frequency selection
12. RT/CLK: External resistor or clock frequency selection
13. EN: Enable pin for device operation control
14. VCC: Supply voltage for internal control circuitry
15. VCC: Supply voltage for internal control circuitry
16. VCC: Supply voltage for internal control circuitry

Functional Features

• Voltage Regulation: The LTC3814IFE-5#TRPBF provides precise and adjustable output voltage regulation, ensuring stable power supply to the load.
• Current Limiting: It incorporates overcurrent protection, preventing excessive current flow and protecting both the IC and the load from damage.
• Soft-Start: The soft-start feature allows gradual ramp-up of the output voltage during startup, minimizing inrush currents and improving system reliability.
• Synchronization: The SYNC pin enables synchronization with an external clock source, facilitating coordination with other components in the system.

Advantages and Disadvantages

Advantages

• High efficiency operation reduces power losses.
• Wide input voltage range enhances versatility.
• Accurate output voltage regulation ensures reliable performance.
• Fast transient response enables quick adaptation to load changes.
• Low quiescent current minimizes power wastage during idle periods.

Disadvantages

• Limited maximum output current (5A) may not be suitable for high-power applications.
• Requires external components for proper operation, increasing system complexity.

Working Principles

The LTC3814IFE-5#TRPBF operates as a synchronous step-down DC-DC converter. It utilizes a pulse width modulation (PWM) control scheme to regulate the output voltage. The input voltage is stepped down to the desired output voltage using high-frequency switching techniques. The IC incorporates various control and protection features to ensure stable and reliable power delivery to the load.

Application Field Plans

The LTC3814IFE-5#TRPBF finds applications in a wide range of electronic devices and systems, including but not limited to: - Portable electronic devices: Smartphones, tablets, portable media players - Industrial equipment: Power supplies, motor drives, LED lighting - Automotive electronics: Infotainment systems, advanced driver-assistance systems (ADAS) - Telecommunications: Network routers, base stations, communication modules

Alternative Models

For those seeking alternative options, the following models can be considered: - LTC3814IFE-3.3#TRPBF: Similar to LTC3814IFE-5#TRPBF, but with a fixed output voltage