LTC3806EDE#PBF

Product Overview

Category

LTC3806EDE#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is primarily used in various power management systems, including but not limited to voltage regulators, battery chargers, and DC-DC converters.

Characteristics

• High efficiency: The LTC3806EDE#PBF offers excellent power conversion efficiency, ensuring minimal energy loss during operation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Adjustable output voltage: The output voltage can be easily adjusted according to the specific requirements of the system.
• Compact package: The LTC3806EDE#PBF comes in a compact package, allowing for space-efficient integration into electronic devices.
• Low quiescent current: It has a low quiescent current, reducing power consumption when the device is in standby mode.

Package and Quantity

The LTC3806EDE#PBF is available in a 16-pin DFN (Dual Flat No-Lead) package. Each package contains one unit of the IC.

Specifications

• Input Voltage Range: 4.5V to 36V
• Output Voltage Range: 0.8V to 34V
• Maximum Output Current: 20A
• Switching Frequency: Up to 2MHz
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC3806EDE#PBF features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. FB: Feedback pin for output voltage regulation
4. SS: Soft-start capacitor connection pin
5. SYNC: Synchronization input pin
6. VCC: Supply voltage pin
7. VCC2: Secondary supply voltage pin
8. PGND: Power ground reference pin
9. SW: Switching node connection pin
10. BST: Bootstrap capacitor connection pin
11. SS/TRK: Soft-start and tracking control pin
12. RT/CLKOUT: External resistor connection for frequency setting or clock output
13. CLKIN: External clock input pin
14. COMP: Compensation pin for stability control
15. PGOOD: Power good indicator output pin
16. EN/UVLO: Enable and undervoltage lockout control pin

Functional Features

• High-efficiency synchronous buck regulator
• Adjustable output voltage through feedback pin
• Programmable soft-start and tracking capability
• Synchronization with an external clock source
• Overvoltage and overcurrent protection
• Thermal shutdown protection

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and heat generation.
• Wide input voltage range allows for versatile applications.
• Compact package enables space-efficient integration.
• Adjustable output voltage provides flexibility in system design.
• Comprehensive protection features enhance reliability.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• External components required for proper operation, increasing overall system complexity.

Working Principles

The LTC3806EDE#PBF operates as a synchronous buck regulator, converting a higher input voltage to a lower output voltage efficiently. It utilizes pulse-width modulation (PWM) techniques to regulate the output voltage accurately. The IC incorporates a high-side and low-side MOSFET switch, which alternately connect the input voltage to the output load, controlled by an internal oscillator. By adjusting the duty cycle of the switches, the desired output voltage is achieved. Feedback control ensures stable and accurate regulation.

Detailed Application Field Plans

The LTC3806EDE#PBF finds applications in various power management systems, including: - Voltage regulators for electronic devices - Battery chargers for portable devices - DC-DC converters for efficient power conversion

Detailed and Complete Alternative Models

1. LTC3806EFE#PBF: Similar to LTC3806EDE#PBF but available in a 20-pin TSSOP package.
2. LTC3806EGN#PBF: Similar to LTC3806EDE#PBF but available in a 16-pin SSOP package.
3. LTC3806EMSE#PBF: Similar to LTC3806EDE#PBF but available in a 16-pin MSOP package.

These alternative models offer similar functionality and characteristics, providing options for different packaging requirements.

In conclusion, the LTC3806EDE#PBF is a highly efficient integrated circuit designed for power management applications. Its adjustable output voltage, wide input voltage range, and compact package make it suitable for various electronic devices. While it has limitations in terms of maximum output current and external component requirements, its advantages outweigh the disadvantages. With comprehensive protection features and reliable performance, the LTC3806