Linear Technology/Analog Devices
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LTC3676IUJ#TRPBF
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LTC3676IUJ#TRPBF

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Quiescent Current, Small Package Size
  • Package: 32-QFN (5mm x 5mm)
  • Essence: Power management IC designed for portable electronic devices
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: Programmable from 0.4V to 3.975V
  • Maximum Output Current: Up to 1A
  • Quiescent Current: 30µA (typical)
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC3676IUJ#TRPBF has a 32-pin QFN package with the following pin configuration:

  1. VIN: Input Voltage
  2. VOUT1: Output Voltage 1
  3. VOUT2: Output Voltage 2
  4. VOUT3: Output Voltage 3
  5. VOUT4: Output Voltage 4
  6. GND: Ground
  7. EN1: Enable Input 1
  8. EN2: Enable Input 2
  9. EN3: Enable Input 3
  10. EN4: Enable Input 4
  11. PG1: Power Good Indicator 1
  12. PG2: Power Good Indicator 2
  13. PG3: Power Good Indicator 3
  14. PG4: Power Good Indicator 4
  15. SS1: Soft-Start Control 1
  16. SS2: Soft-Start Control 2
  17. SS3: Soft-Start Control 3
  18. SS4: Soft-Start Control 4
  19. VREF: Reference Voltage Output
  20. FB1: Feedback Input 1
  21. FB2: Feedback Input 2
  22. FB3: Feedback Input 3
  23. FB4: Feedback Input 4
  24. LDO1: Low Dropout Regulator Output 1
  25. LDO2: Low Dropout Regulator Output 2
  26. LDO3: Low Dropout Regulator Output 3
  27. LDO4: Low Dropout Regulator Output 4
  28. LDO5: Low Dropout Regulator Output 5
  29. LDO6: Low Dropout Regulator Output 6
  30. LDO7: Low Dropout Regulator Output 7
  31. LDO8: Low Dropout Regulator Output 8
  32. VBAT: Battery Input Voltage

Functional Features

  • Integrated power management solution for portable electronic devices
  • Four high-efficiency step-down DC/DC converters
  • Eight low dropout (LDO) linear regulators
  • Programmable output voltages
  • Power good indicators for each output
  • Soft-start control for smooth power-up
  • Enable inputs for individual output control
  • Reference voltage output for external use

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Small package size for space-constrained applications - Wide input voltage range for compatibility with various power sources - Multiple output voltages for versatile power supply requirements

Disadvantages: - Limited maximum output current (up to 1A) - Requires careful thermal management due to small package size

Working Principles

The LTC3676IUJ#TRPBF is designed to efficiently manage power in portable electronic devices. It integrates four step-down DC/DC converters and eight low dropout linear regulators. The step-down converters provide high-efficiency power conversion from the input voltage to programmable output voltages. The linear regulators offer additional voltage regulation for specific components or subsystems.

The device features enable inputs, allowing individual control of each output. Power good indicators provide feedback on the status of each output voltage. Soft-start control ensures a smooth power-up sequence, minimizing inrush current and potential voltage spikes.

Detailed Application Field Plans

The LTC3676IUJ#TRPBF is suitable for a wide range of portable electronic devices, including but not limited to: - Smartphones - Tablets - Wearable devices - Portable gaming consoles - Portable medical devices - Handheld instruments

Its multiple outputs and programmable voltage ranges make it versatile for various power supply requirements in these applications.

Detailed and Complete Alternative Models

  1. LTC3676IUJ#PBF: Similar to LTC3676IUJ#TRPBF, but available in a 32-pin QFN package (non-tape & reel packaging).
  2. LTC3676IUJ#TRMPBF: Similar to LTC3676IUJ#TRPBF, but available in a

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC3676IUJ#TRPBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LTC3676IUJ#TRPBF in technical solutions:

  1. Q: What is LTC3676IUJ#TRPBF? A: LTC3676IUJ#TRPBF is a specific model number for a power management integrated circuit (PMIC) developed by Linear Technology (now part of Analog Devices). It provides multiple power rails and various features for use in technical solutions.

  2. Q: What are the key features of LTC3676IUJ#TRPBF? A: The LTC3676IUJ#TRPBF PMIC offers multiple synchronous buck regulators, LDOs, and other power management functions. It supports a wide input voltage range, has programmable output voltages, and includes fault protection features.

  3. Q: What applications can LTC3676IUJ#TRPBF be used in? A: LTC3676IUJ#TRPBF is commonly used in battery-powered devices, portable electronics, industrial equipment, and other applications that require efficient power management and multiple power rails.

  4. Q: How many power rails does LTC3676IUJ#TRPBF support? A: LTC3676IUJ#TRPBF supports up to six independent power rails, including multiple buck regulators and LDOs.

  5. Q: Can LTC3676IUJ#TRPBF handle different input voltages? A: Yes, LTC3676IUJ#TRPBF can handle a wide input voltage range, typically from 2.7V to 5.5V.

  6. Q: Are the output voltages of LTC3676IUJ#TRPBF programmable? A: Yes, the output voltages of LTC3676IUJ#TRPBF can be programmed through external resistors or via an I2C interface.

  7. Q: Does LTC3676IUJ#TRPBF have any fault protection features? A: Yes, LTC3676IUJ#TRPBF includes various fault protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown.

  8. Q: Can LTC3676IUJ#TRPBF operate in low-power modes? A: Yes, LTC3676IUJ#TRPBF supports different power-saving modes, including a low-power sleep mode and a shutdown mode to minimize power consumption.

  9. Q: Is LTC3676IUJ#TRPBF available in different package options? A: Yes, LTC3676IUJ#TRPBF is available in a 32-lead QFN package, which offers compact size and good thermal performance.

  10. Q: Where can I find more information about LTC3676IUJ#TRPBF? A: You can find detailed information about LTC3676IUJ#TRPBF, including datasheets, application notes, and technical support, on the Analog Devices website or by contacting their customer support team.