LT3667IMSE#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency step-down DC/DC converter - Wide input voltage range - Adjustable output voltage - Low quiescent current - Internal compensation - Synchronous rectification - Soft-start and tracking capability

Package: MSOP-16E

Essence: The LT3667IMSE#TRPBF is a high efficiency step-down DC/DC converter designed for power management applications. It provides an adjustable output voltage from a wide input voltage range, making it suitable for various electronic devices.

Packaging/Quantity: The LT3667IMSE#TRPBF is available in a MSOP-16E package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.5V to 40V
• Output Voltage Range: 1.24V to VIN
• Maximum Output Current: 2A
• Switching Frequency: 1MHz
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3667IMSE#TRPBF has the following pin configuration:

1. SW: Switch Node Connection
2. GND: Ground
3. FB: Feedback Voltage Input
4. VCC: Supply Voltage Input
5. SS/TRK: Soft-Start/Tracking Control
6. SYNC: External Clock Synchronization
7. PG: Power Good Indicator
8. EN: Enable Pin
9. VOUT: Output Voltage
10. VOUT: Output Voltage
11. VOUT: Output Voltage
12. VOUT: Output Voltage
13. VOUT: Output Voltage
14. VOUT: Output Voltage
15. VOUT: Output Voltage
16. VOUT: Output Voltage

Functional Features

• High efficiency step-down DC/DC conversion
• Adjustable output voltage for flexibility
• Internal compensation simplifies design
• Synchronous rectification improves efficiency
• Soft-start and tracking capability for controlled startup
• Power good indicator for system monitoring
• Enable pin for power management control

Advantages and Disadvantages

Advantages: - High efficiency operation - Wide input voltage range - Adjustable output voltage - Low quiescent current - Compact MSOP-16E package - Internal compensation for simplified design - Synchronous rectification for improved efficiency - Soft-start and tracking capability for controlled startup

Disadvantages: - Limited maximum output current (2A) - Requires external clock synchronization for synchronous operation

Working Principles

The LT3667IMSE#TRPBF is a step-down DC/DC converter that uses a high frequency switching technique to efficiently convert a higher input voltage to a lower output voltage. It employs a synchronous rectification scheme to minimize power losses and improve overall efficiency.

The device operates by controlling the duty cycle of the internal switch to regulate the output voltage. The feedback voltage is compared to a reference voltage, and the duty cycle is adjusted accordingly to maintain the desired output voltage.

The LT3667IMSE#TRPBF also features soft-start and tracking capability, allowing for controlled startup and voltage tracking in multi-rail systems. It has an enable pin for power management control and a power good indicator for system monitoring.

Detailed Application Field Plans

The LT3667IMSE#TRPBF is suitable for a wide range of power management applications, including but not limited to: - Portable electronic devices - Battery-powered systems - Industrial equipment - Automotive electronics - Telecommunications equipment - LED lighting systems

Detailed and Complete Alternative Models

• LT3667IMSE#PBF: Same specifications, different package (MSOP-16)
• LT3667HMSE#TRPBF: Higher maximum output current (3A), same package (MSOP-16E)
• LT3667IMSE#TRMPBF: Same specifications, tape and reel packaging (reel of 2500 units)

These alternative models offer similar functionality and can be considered as substitutes for the LT3667IMSE#TRPBF depending on specific requirements and availability.

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