LT3667HMSE#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency step-down DC/DC converter - Wide input voltage range: 4V to 60V - Adjustable output voltage range: 0.8V to 55V - Maximum output current: 2A - Internal compensation network - Low quiescent current: 40µA - Programmable soft-start - Synchronization capability - Fault protection features

Package: MSOP-16E

Essence: The LT3667HMSE#TRPBF is a high efficiency step-down DC/DC converter designed for power management applications. It offers a wide input voltage range, adjustable output voltage, and various fault protection features.

Packaging/Quantity: The LT3667HMSE#TRPBF is available in a MSOP-16E package. The quantity per reel is 2500 units.

Specifications

• Input Voltage Range: 4V to 60V
• Output Voltage Range: 0.8V to 55V
• Maximum Output Current: 2A
• Quiescent Current: 40µA
• Switching Frequency: 1MHz
• Operating Temperature Range: -40°C to 125°C
• Package Type: MSOP-16E

Pin Configuration

The LT3667HMSE#TRPBF has the following pin configuration:

Pin 1: VIN Pin 2: SW Pin 3: FB Pin 4: GND Pin 5: SYNC Pin 6: SS Pin 7: VOUT Pin 8: VCC Pin 9: PGND Pin 10: BST Pin 11: NC Pin 12: NC Pin 13: NC Pin 14: NC Pin 15: NC Pin 16: NC

Functional Features

1. High Efficiency: The LT3667HMSE#TRPBF offers high efficiency conversion, minimizing power losses and maximizing battery life.

2. Wide Input Voltage Range: With an input voltage range of 4V to 60V, the converter can be used in a variety of applications.

3. Adjustable Output Voltage: The output voltage can be adjusted from 0.8V to 55V, providing flexibility for different power requirements.

4. Fault Protection Features: The LT3667HMSE#TRPBF includes various fault protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.

5. Programmable Soft-Start: The soft-start feature allows for controlled startup, reducing inrush current and preventing voltage spikes.

6. Synchronization Capability: The converter can be synchronized to an external clock signal, enabling multiple converters to operate in phase.

Advantages and Disadvantages

Advantages: - High efficiency conversion - Wide input voltage range - Adjustable output voltage - Fault protection features - Programmable soft-start - Synchronization capability

Disadvantages: - Limited maximum output current (2A)

Working Principles

The LT3667HMSE#TRPBF is a step-down DC/DC converter that uses a switching regulator topology to efficiently convert a higher input voltage to a lower output voltage. It employs a pulse-width modulation (PWM) control scheme to regulate the output voltage.

When the input voltage is applied, the internal control circuitry generates a PWM signal that controls the switching of the internal power MOSFET. This switching action converts the input voltage to a series of pulses with a duty cycle determined by the desired output voltage. An LC filter is used to smooth the output voltage and reduce ripple.

The LT3667HMSE#TRPBF also includes various protection features such as overvoltage protection, overcurrent protection, and thermal shutdown. These features ensure safe operation and protect the converter and connected components from damage.

Detailed Application Field Plans

The LT3667HMSE#TRPBF can be used in a wide range of power management applications, including but not limited to: - Industrial equipment - Automotive systems - Telecom infrastructure - Battery-powered devices - LED lighting - Distributed power supplies

Its high efficiency, wide input voltage range, and adjustable output voltage make it suitable for various voltage conversion requirements in different application fields.

Detailed and Complete Alternative Models

1. LT3652: Similar step-down DC/DC converter with integrated power MOSFET and higher maximum output current (3A).
2. LT8610: Step-down DC/DC converter with synchronous rectification and higher switching frequency.
3. LT1763: Low dropout linear regulator with adjustable output voltage and low quiescent current.

These alternative models offer similar functionality and can be considered based