LTC3676HUJ#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency - Low quiescent current - Wide input voltage range - Multiple output channels - Flexible power sequencing - Programmable power-up and power-down sequences

Package: 40-Lead QFN (Quad Flat No-Lead) package

Essence: The LTC3676HUJ#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 LTC3676HUJ#PBF is available in a 40-Lead QFN package. The quantity per reel is typically 2500 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Programmable from 0.8V to 3.3V
• Number of Outputs: 6
• Maximum Output Current: Up to 1A per channel
• Quiescent Current: 35µA (typical)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC3676HUJ#PBF has a total of 40 pins. Here is a brief description of some important pins:

• VIN: Input voltage pin
• VOUT1 to VOUT6: Output voltage pins
• EN1 to EN6: Enable pins for each output channel
• PGOOD1 to PGOOD6: Power good pins indicating the status of each output channel
• GND: Ground pin

For a complete pin configuration diagram, please refer to the datasheet.

Functional Features

1. Multiple Output Channels: The LTC3676HUJ#PBF provides six independent output channels, allowing it to power different components of the device simultaneously.

2. Flexible Power Sequencing: The IC supports flexible power sequencing, enabling controlled power-up and power-down sequences for various components.

3. Programmable Voltage Output: The output voltage of each channel can be programmed within a range of 0.8V to 3.3V, providing flexibility in powering different components.

4. Low Quiescent Current: The IC has a low quiescent current of only 35µA, minimizing power consumption when the device is in standby or idle mode.

Advantages and Disadvantages

Advantages: - High efficiency power management - Wide input voltage range - Multiple output channels for simultaneous powering of different components - Flexible power sequencing for controlled operation - Low quiescent current for reduced power consumption

Disadvantages: - Limited maximum output current per channel (up to 1A)

Working Principles

The LTC3676HUJ#PBF integrates various power management functions into a single IC. It utilizes switching regulators, LDOs (low-dropout regulators), and other circuitry to efficiently convert the input voltage to multiple regulated output voltages required by the device's components.

The IC incorporates control logic to enable flexible power sequencing and programmable voltage outputs. It also includes protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe operation.

Detailed Application Field Plans

The LTC3676HUJ#PBF is widely used in portable electronic devices that require efficient power management. Some common application fields include:

1. Smartphones and Tablets: The IC powers various components such as processors, memory, display panels, and wireless modules in smartphones and tablets.

2. Portable Gaming Devices: It provides regulated voltages to power gaming consoles, screens, audio systems, and other components in portable gaming devices.

3. Wearable Devices: The IC is suitable for powering wearable devices like smartwatches, fitness trackers, and augmented reality glasses.

4. Portable Medical Devices: It can be used in portable medical devices such as patient monitors, infusion pumps, and handheld diagnostic tools.

Detailed and Complete Alternative Models

1. LTC3676EUJ#PBF: Similar to LTC3676HUJ#PBF but available in a different package (32-Lead QFN).
2. LTC3676IUJ#PBF: Similar to LTC3676HUJ#PBF but with extended temperature range (-40°C to 125°C).
3. LTC3676CUJ#PBF: Similar to LTC3676HUJ#PBF but with a lower quiescent current (25µA typical).

These alternative models offer similar functionality and can be considered based on specific requirements and preferences.

*Note: The content provided above is a sample structure for an encyclopedia entry and may not reflect the actual specifications or details of the LTC3676HUJ#PBF.