LTC3608IWKG

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High Efficiency - Wide Input Voltage Range - Low Quiescent Current - Adjustable Output Voltage - Synchronous Rectification - Overcurrent Protection - Thermal Shutdown

Package: 24-Lead 4mm x 5mm QFN

Essence: The LTC3608IWKG is a high-efficiency, synchronous buck regulator designed for power management applications.

Packaging/Quantity: The LTC3608IWKG is available in a 24-Lead 4mm x 5mm QFN package. The quantity per reel is 2500 units.

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 1A
• Switching Frequency: 2MHz
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC3608IWKG has the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. SW: Switch Node
4. FB: Feedback Voltage
5. EN: Enable Pin
6. SS: Soft-Start Pin
7. PG: Power Good Indicator
8. VOUT: Output Voltage

Functional Features

• High Efficiency: The LTC3608IWKG offers high efficiency due to its synchronous rectification and low quiescent current.
• Wide Input Voltage Range: It can accept input voltages ranging from 2.25V to 5.5V, making it suitable for various applications.
• Adjustable Output Voltage: The output voltage can be adjusted from 0.6V to the input voltage.
• Overcurrent Protection: The LTC3608IWKG includes overcurrent protection to prevent damage to the circuit.
• Thermal Shutdown: It has a thermal shutdown feature that protects the IC from overheating.

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown

Disadvantages: - Limited maximum output current (1A)

Working Principles

The LTC3608IWKG is a synchronous buck regulator that uses pulse-width modulation (PWM) to regulate the output voltage. It operates by switching the input voltage on and off at a high frequency, which is then filtered to provide a stable output voltage. The feedback voltage is compared to a reference voltage, and the duty cycle of the switching signal is adjusted accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The LTC3608IWKG can be used in various power management applications, including but not limited to: - Portable electronic devices - Battery-powered systems - Industrial equipment - Automotive applications - Distributed power systems

Detailed and Complete Alternative Models

Some alternative models to the LTC3608IWKG include: - LTC3608EMSE: 10-Lead MSOP package, 2500 units per reel - LTC3608EUF: 16-Lead 3mm x 3mm QFN package, 3000 units per reel - LTC3608EUFD: 16-Lead 3mm x 3mm DFN package, 3000 units per reel - LTC3608IMSE: 10-Lead MSOP package, 2500 units per reel

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

In conclusion, the LTC3608IWKG is a versatile and efficient power management IC suitable for a wide range of applications. Its high efficiency, adjustable output voltage, and built-in protection features make it a reliable choice for various electronic systems.