LTC3613IWKH

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency - Wide input voltage range - Low quiescent current - Adjustable output voltage - Small package size

Package: WKH Package (example: 20-Lead 4mm x 5mm QFN)

Essence: The LTC3613IWKH is a power management IC designed for efficient voltage regulation in various electronic devices.

Packaging/Quantity: Available in tape and reel packaging. Quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 3A
• Switching Frequency: Up to 4MHz
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC3613IWKH has a 20-lead QFN package with the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. SW: Switch node connection
4. FB: Feedback voltage input
5. VOUT: Output voltage
6. EN: Enable pin
7. SS: Soft-start capacitor connection
8. PGND: Power ground
9. AGND: Analog ground
10. BST: Boost capacitor connection
11. LX: Inductor connection 12-20. NC: No connect

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• High efficiency conversion minimizes power loss.
• Adjustable output voltage provides flexibility for different applications.
• Low quiescent current ensures energy efficiency during standby mode.
• Fast transient response for sudden load changes.
• Overcurrent and overtemperature protection for safe operation.

Advantages

• High efficiency results in longer battery life.
• Wide input voltage range allows for versatile applications.
• Small package size saves board space.
• Adjustable output voltage meets different system requirements.
• Low quiescent current reduces power consumption during idle periods.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Higher switching frequency may introduce more noise in sensitive circuits.

Working Principles

The LTC3613IWKH utilizes a synchronous buck-boost topology to regulate the output voltage. It employs a high-frequency switching technique to efficiently step up or step down the input voltage, depending on the required output voltage. The integrated control circuitry ensures stable and accurate voltage regulation.

Detailed Application Field Plans

The LTC3613IWKH is commonly used in various electronic devices, including but not limited to: - Portable electronic devices (e.g., smartphones, tablets) - Battery-powered systems - Industrial equipment - Automotive applications - IoT devices

Detailed and Complete Alternative Models

1. LTC3613EUD: 20-Lead 4mm x 5mm QFN package, similar specifications
2. LTC3613IMS: 16-Lead MSOP package, similar specifications
3. LTC3613HDD: 12-Lead DFN package, similar specifications

These alternative models offer similar functionality and can be considered as substitutes for the LTC3613IWKH in various applications.

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