LTC3805EMSE#PBF

Product Overview

Category

LTC3805EMSE#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, DC-DC converters, and battery charging circuits.

Characteristics

• High efficiency: The LTC3805EMSE#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.
• Compact package: The product comes in a small MSOP-10 package, allowing for space-efficient integration into electronic devices.
• Low quiescent current: The LTC3805EMSE#PBF exhibits low quiescent current consumption, contributing to overall power savings.
• Adjustable output voltage: Users can easily adjust the output voltage according to their specific requirements.

Package and Quantity

The LTC3805EMSE#PBF is packaged in an MSOP-10 package. Each package contains one unit of the product.

Specifications

• Input Voltage Range: 4.5V to 36V
• Output Voltage Range: 0.8V to 34V
• Maximum Output Current: 2A
• Switching Frequency: 100kHz to 500kHz
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC3805EMSE#PBF features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. SS/TR: Soft-start/Tracking pin
5. SYNC: Synchronization pin for external clock input
6. VCC: Supply voltage pin
7. PGND: Power ground pin
8. SW: Switching node pin
9. COMP: Compensation pin for stability control
10. EN/UVLO: Enable/Undervoltage lockout pin

Functional Features

• Voltage Regulation: The LTC3805EMSE#PBF provides precise voltage regulation, ensuring a stable output voltage even under varying load conditions.
• Soft-Start: The soft-start feature allows for gradual ramp-up of the output voltage, preventing excessive inrush current and improving system reliability.
• Synchronization: The synchronization capability enables the LTC3805EMSE#PBF to synchronize its switching frequency with an external clock source, facilitating system integration.
• Protection Mechanisms: This product incorporates various protection mechanisms, including overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown, safeguarding both the IC and the connected components.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and improved energy utilization.
• Wide input voltage range enhances versatility and compatibility with different power sources.
• Compact package allows for space-saving integration into electronic devices.
• Adjustable output voltage provides flexibility for various applications.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Lack of built-in fault detection and reporting features may require additional circuitry for comprehensive system monitoring.

Working Principles

The LTC3805EMSE#PBF operates as a pulse-width modulation (PWM) controller. It regulates the output voltage by adjusting the duty cycle of the internal power switch. By continuously monitoring the feedback voltage, the controller adjusts the switch's on-time to maintain the desired output voltage.

Detailed Application Field Plans

The LTC3805EMSE#PBF finds application in a wide range of power management systems, including: 1. Voltage regulators for portable electronic devices such as smartphones and tablets. 2. DC-DC converters for automotive electronics, providing efficient power conversion in vehicles. 3. Battery charging circuits for various battery-powered devices, ensuring safe and optimized charging.

Detailed Alternative Models

For those seeking alternative options, the following models offer similar functionality to the LTC3805EMSE#PBF: 1. LT3845EMSE#PBF 2. LTC3810EMSE#PBF 3. LT8614EMSE#PBF

These models share comparable specifications and features, making them suitable alternatives for various power management applications.

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