LT3667HUDD#PBF

Product Overview

Category

The LT3667HUDD#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used for voltage regulation and power conversion purposes in various electronic devices and systems.

Characteristics

• High efficiency: The LT3667HUDD#PBF offers high efficiency power conversion, minimizing energy loss during voltage regulation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Compact package: The IC is available in a compact package, ensuring space-saving integration into electronic devices.
• Low quiescent current: It features low quiescent current consumption, enhancing overall power efficiency.

Package and Quantity

The LT3667HUDD#PBF is packaged in a small outline dual in-line package (SOIC) with 16 pins. It is typically sold in reels containing a specific quantity, usually around 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V - 36V
• Output Voltage Range: 1.24V - 34V
• Maximum Output Current: 1.5A
• Switching Frequency: Adjustable up to 2MHz
• Operating Temperature Range: -40°C to 125°C
• Efficiency: Up to 95%
• Quiescent Current: 60µA

Pin Configuration

The LT3667HUDD#PBF has 16 pins arranged as follows:

1. VIN: Input voltage pin
2. SW: Switching node connection
3. GND: Ground reference
4. FB: Feedback pin for output voltage regulation
5. VOUT: Output voltage pin
6. SS/TR: Soft-start/tracking pin
7. SYNC/SS: Synchronization/soft-start pin
8. VCC: Supply voltage for internal circuitry
9. PGND: Power ground reference
10. BST: Boost capacitor connection
11. LX: Inductor connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• Adjustable output voltage enables flexibility in meeting specific device requirements.
• Integrated soft-start and synchronization features enhance system stability during power-up and operation.
• Overcurrent protection safeguards the IC and connected devices from excessive current flow.
• Thermal shutdown protection prevents overheating and potential damage to the IC.

Advantages and Disadvantages

Advantages

• High efficiency power conversion reduces energy loss.
• Compact package facilitates space-saving integration.
• Wide input voltage range enhances versatility.
• Low quiescent current consumption improves overall power efficiency.

Disadvantages

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

Working Principles

The LT3667HUDD#PBF operates as a step-down (buck) switching regulator. It utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage. The input voltage is stepped down to the desired output voltage by controlling the duty cycle of the internal power switch. This regulated output voltage is then supplied to the load.

Application Field Plans

The LT3667HUDD#PBF finds application in various fields, including but not limited to: - Portable electronic devices - Automotive systems - Industrial equipment - Telecommunications - Renewable energy systems

Alternative Models

For similar power management applications, alternative models to the LT3667HUDD#PBF include: - LT3652HUDD#PBF - LT3680EDD#PBF - LT1763CS8-3.3#PBF

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

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