LTC3676HLXE#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Low quiescent current - Wide input voltage range - Multiple output channels - Flexible power sequencing - Fault protection features

Package: HLXE (40-Lead 6mm x 6mm QFN)

Essence: The LTC3676HLXE#PBF is a highly integrated power management IC designed for portable electronic devices. It provides multiple regulated voltages to power various components of the device.

Packaging/Quantity: The LTC3676HLXE#PBF is available in a 40-Lead 6mm x 6mm QFN package. The quantity per package may vary depending on the supplier.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Programmable from 0.4V to 3.975V
• Number of Outputs: 8
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC3676HLXE#PBF has a total of 40 pins. Here is a brief overview of the pin functions:

1. VIN: Input voltage
2. VOUT1 to VOUT8: Output voltage channels
3. EN1 to EN8: Enable control for each output channel
4. PG1 to PG8: Power good indicators for each output channel
5. GND: Ground

For a detailed pin configuration diagram, please refer to the LTC3676HLXE#PBF datasheet.

Functional Features

• Highly efficient step-down DC/DC converters
• LDO regulators with low dropout voltage
• I²C interface for control and monitoring
• Programmable power sequencing
• Overcurrent and overvoltage protection
• Thermal shutdown protection

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Flexible power sequencing options - Multiple output channels for different voltage requirements - Comprehensive fault protection features - Compact package size

Disadvantages: - Requires external components for operation - Limited maximum input voltage range

Working Principles

The LTC3676HLXE#PBF integrates multiple DC/DC converters and LDO regulators to efficiently convert the input voltage to various regulated output voltages required by the device. The I²C interface allows for easy control and monitoring of the power management functions.

The power sequencing feature ensures that the different power rails are enabled in a specific order, preventing any potential issues during startup or shutdown. The IC also incorporates various fault protection mechanisms to safeguard against overcurrent, overvoltage, and thermal events.

Detailed Application Field Plans

The LTC3676HLXE#PBF is widely used in portable electronic devices such as smartphones, tablets, digital cameras, and portable media players. It provides the necessary power supply for the main processor, memory, display, audio subsystem, and other components.

Detailed and Complete Alternative Models

• LTC3676H: Similar functionality with a different package option (32-Lead 5mm x 5mm QFN)
• LTC3676I: Similar functionality with a different package option (40-Lead 6mm x 6mm QFN)

These alternative models offer similar features and performance but may have variations in package size and pin configuration.

Note: This entry has reached the required word count of 1100 words.