LT3758AIMSE#PBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Voltage, High Efficiency, Synchronous Buck-Boost DC/DC Converter
• Package: MSOP-16E
• Essence: The LT3758AIMSE#PBF is a versatile and high-performance IC designed for power management applications. It offers a wide input voltage range and can efficiently regulate the output voltage in both step-up and step-down modes.
• Packaging/Quantity: The LT3758AIMSE#PBF is available in a MSOP-16E package and is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 3V to 40V
• Output Voltage Range: 1.2V to 40V
• Switching Frequency: Up to 500kHz
• Maximum Output Current: Up to 4A
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3758AIMSE#PBF has a total of 16 pins. Here is the detailed pin configuration:

1. VIN: Input Voltage
2. SW: Switch Node Connection
3. PGND: Power Ground
4. FB: Feedback Voltage Input
5. COMP: Compensation Node
6. SS: Soft-Start Capacitor Connection
7. VCC: Supply Voltage for Internal Circuitry
8. GND: Ground
9. SYNC/MODE: External Clock Synchronization or Mode Selection
10. RT/CLKOUT: Timing Resistor or Clock Output
11. ITH: Current Sense Threshold Setting
12. BST: Bootstrap Capacitor Connection
13. LX: Inductor Connection
14. VOUT: Output Voltage
15. SS/TRK: Soft-Start/Tracking Control
16. EN/UVLO: Enable/Input Undervoltage Lockout

Functional Features

• Wide Input Voltage Range allows for versatile applications.
• High Efficiency ensures minimal power loss and heat generation.
• Synchronous Buck-Boost Architecture enables step-up and step-down voltage regulation.
• Adjustable Switching Frequency provides flexibility in design.
• Integrated Soft-Start and Tracking Control simplifies startup and sequencing.
• Comprehensive Protection Features including overvoltage, undervoltage, and overcurrent protection.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for compatibility with various power sources. - High efficiency results in reduced power consumption and longer battery life. - Synchronous buck-boost architecture provides flexibility in voltage regulation. - Comprehensive protection features ensure safe operation and system reliability.

Disadvantages: - Requires careful consideration of external components for optimal performance. - Limited maximum output current compared to some other ICs in the same category.

Working Principles

The LT3758AIMSE#PBF operates based on a synchronous buck-boost architecture. It utilizes an internal high-frequency switch to regulate the output voltage efficiently. The IC continuously monitors the feedback voltage and adjusts the duty cycle of the switch to maintain the desired output voltage. This allows the IC to operate in both step-up and step-down modes, making it suitable for a wide range of applications.

Detailed Application Field Plans

The LT3758AIMSE#PBF is commonly used in various power management applications, including but not limited to:

1. Battery-powered devices: Enables efficient power conversion and extends battery life.
2. Automotive electronics: Provides stable power supply for automotive systems.
3. Industrial equipment: Facilitates voltage regulation in industrial machinery.
4. Telecommunications: Supports power management in communication systems.
5. LED lighting: Enables efficient power conversion for LED drivers.

Detailed and Complete Alternative Models

1. LT3758AEMSE#PBF: Similar to LT3758AIMSE#PBF but with extended temperature range (-40°C to 150°C).
2. LT3758HMS#PBF: Higher maximum output current (up to 6A) compared to LT3758AIMSE#PBF.
3. LT3758IMSE#PBF: Lower maximum output current (up to 2A) compared to LT3758AIMSE#PBF.

These alternative models offer similar functionality with slight variations in specifications to cater to different application requirements.

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