Linear Technology/Analog Devices
Bild kan vara representation.
Se specifikationer för produktinformation.
LTC1435CG
Visa detalj Datablad

LTC1435CG

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
  • Package: Ceramic Grid Array (CGA)
  • Essence: Voltage Regulator
  • Packaging/Quantity: 1 piece per package

Specifications

  • Input Voltage Range: 2.7V to 16V
  • Output Voltage Range: 1.25V to 14V
  • Quiescent Current: 30µA
  • Switching Frequency: 500kHz
  • Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC1435CG has a total of 20 pins. The pin configuration is as follows:

  1. VIN: Input Voltage
  2. GND: Ground
  3. SW: Switch Node
  4. FB: Feedback Pin
  5. SS: Soft-Start Pin
  6. SYNC: Synchronization Pin
  7. VCC: Control Supply Voltage
  8. PGND: Power Ground
  9. VOUT: Output Voltage
  10. EN: Enable Pin
  11. COMP: Compensation Pin
  12. RT: Timing Resistor Pin
  13. CT: Timing Capacitor Pin
  14. AGND: Analog Ground
  15. ITH: Current Sense Threshold Pin
  16. BST: Bootstrap Pin
  17. LX: Inductor Connection
  18. PGOOD: Power Good Indicator
  19. VREF: Reference Voltage Output
  20. ADJ: Adjustable Output Voltage Pin

Functional Features

  • High efficiency voltage regulation
  • Low quiescent current consumption
  • Wide input voltage range for versatile applications
  • Synchronization capability for multi-phase operation
  • Soft-start feature for controlled startup
  • Power good indicator for system monitoring

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power dissipation - Low quiescent current extends battery life - Wide input voltage range allows for flexibility in power source selection - Synchronization capability enables multi-phase operation for higher power applications - Soft-start feature prevents excessive inrush current during startup - Power good indicator provides system status information

Disadvantages: - Limited output voltage range (1.25V to 14V) - Requires external components for proper operation - Higher cost compared to non-integrated solutions

Working Principles

The LTC1435CG is a voltage regulator IC that operates by converting an input voltage into a regulated output voltage. It utilizes a switching regulator topology to achieve high efficiency and low power dissipation. The device employs a feedback mechanism to continuously monitor the output voltage and adjust the duty cycle of the internal switch accordingly. This feedback loop ensures a stable and accurate output voltage despite variations in the input voltage and load conditions.

Detailed Application Field Plans

The LTC1435CG is commonly used in various applications where efficient power management is required. Some typical application fields include:

  1. Battery-powered devices: Portable electronics, handheld instruments, and wireless communication devices benefit from the low quiescent current and wide input voltage range of the LTC1435CG.
  2. Industrial equipment: The high efficiency and synchronization capability make it suitable for powering industrial control systems, motor drives, and automation equipment.
  3. Automotive electronics: The wide input voltage range and robust design of the LTC1435CG make it ideal for automotive applications such as infotainment systems, lighting controls, and powertrain modules.
  4. Telecommunications: The LTC1435CG can be used in telecom infrastructure equipment, base stations, and network switches to provide efficient power conversion and regulation.

Detailed and Complete Alternative Models

  1. LM2576-ADJ: Adjustable Output Voltage, Buck Converter
  2. LT1763-5: Fixed 5V Output Voltage, Low Dropout Regulator
  3. TPS54331: Synchronous Buck Converter, Wide Input Voltage Range

These alternative models offer similar functionality and can be considered as substitutes for the LTC1435CG in various applications.

Word count: 520 words

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LTC1435CG i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of LTC1435CG in technical solutions:

  1. Q: What is LTC1435CG? A: LTC1435CG is a specific model of a high-efficiency synchronous buck-boost DC/DC converter.

  2. Q: What is the input voltage range of LTC1435CG? A: The input voltage range of LTC1435CG is typically between 2.7V and 10V.

  3. Q: What is the output voltage range of LTC1435CG? A: The output voltage range of LTC1435CG can be adjusted from 2.7V to 10V, depending on the application.

  4. Q: What is the maximum output current of LTC1435CG? A: The maximum output current of LTC1435CG is typically around 1.5A.

  5. Q: Can LTC1435CG be used for both step-up and step-down applications? A: Yes, LTC1435CG is designed to work as a synchronous buck-boost converter, making it suitable for both step-up and step-down applications.

  6. Q: Does LTC1435CG have built-in protection features? A: Yes, LTC1435CG includes various protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout.

  7. Q: What is the efficiency of LTC1435CG? A: The efficiency of LTC1435CG can reach up to 95% under certain operating conditions.

  8. Q: Can LTC1435CG operate in a wide temperature range? A: Yes, LTC1435CG is designed to operate in a wide temperature range, typically from -40°C to 85°C.

  9. Q: Is LTC1435CG suitable for battery-powered applications? A: Yes, LTC1435CG is commonly used in battery-powered applications due to its high efficiency and low quiescent current.

  10. Q: What are some typical applications of LTC1435CG? A: LTC1435CG is often used in portable devices, IoT applications, battery chargers, and other power management solutions where a wide input voltage range and high efficiency are required.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.