LTC3118MPFE#TRPBF

Product Overview

Category

The LTC3118MPFE#TRPBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is commonly used in various electronic devices and systems to efficiently regulate and control power supply voltages.

Characteristics

• High efficiency: The LTC3118MPFE#TRPBF offers high conversion efficiency, minimizing power losses during voltage regulation.
• Wide input voltage range: It can accept a wide range of input voltages, making it suitable for diverse power supply applications.
• Low quiescent current: The device has a low standby current, reducing power consumption when not actively regulating voltage.
• Compact package: The LTC3118MPFE#TRPBF is available in a small form factor package, enabling space-saving designs.
• Robustness: It features built-in protection mechanisms such as overvoltage and overcurrent protection, ensuring reliable operation.

Package and Quantity

The LTC3118MPFE#TRPBF is packaged in a 16-pin QFN (Quad Flat No-Lead) package. It is typically sold in reels containing a specific quantity, usually around 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 18V
• Output Voltage Range: 0.6V to 15V
• Maximum Output Current: 3A
• Switching Frequency: Adjustable up to 4MHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC3118MPFE#TRPBF has a total of 16 pins. Here is the detailed pin configuration:

1. VIN: Input voltage pin
2. SW: Switching node connection
3. GND: Ground reference
4. FB: Feedback pin for output voltage regulation
5. SS: Soft-start capacitor connection
6. VOUT: Output voltage pin
7. PGND: Power ground reference
8. EN: Enable pin for device control
9. SYNC: Synchronization input for external clock
10. RT: External resistor for setting switching frequency
11. VCC: Supply voltage for internal circuitry
12. BST: Boost capacitor connection
13. AGND: Analog ground reference
14. COMP: Compensation pin for stability control
15. SS/TRK: Soft-start/tracking capacitor connection
16. PG: Power good indicator output

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• High efficiency conversion minimizes power losses and maximizes energy utilization.
• Adjustable switching frequency enables optimization for different applications.
• Built-in protection mechanisms safeguard against overvoltage and overcurrent conditions.
• Soft-start feature ensures a controlled startup, preventing excessive inrush current.

Advantages and Disadvantages

Advantages

• High efficiency operation reduces power consumption and extends battery life.
• Compact package enables space-saving designs in portable devices.
• Wide input voltage range provides flexibility in power supply selection.
• Robust protection mechanisms enhance system reliability.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires careful consideration of external components for optimal performance.

Working Principles

The LTC3118MPFE#TRPBF operates based on a switching regulator topology. It utilizes an internal power MOSFET switch to efficiently regulate the output voltage. The input voltage is converted to a high-frequency AC signal, which is then rectified and filtered to obtain the desired DC output voltage. Control circuitry continuously adjusts the duty cycle of the internal switch to maintain the desired output voltage despite variations in input voltage and load conditions.

Detailed Application Field Plans

The LTC3118MPFE#TRPBF finds applications in various fields, including but not limited to: - Portable electronic devices: Smartphones, tablets, and wearable devices benefit from its compact size and high efficiency. - Industrial automation: It can be used in control systems, motor drives, and power supplies for reliable operation. - Automotive electronics: Suitable for powering infotainment systems, lighting modules, and other automotive components. - Renewable energy systems: Can be employed in solar-powered devices and battery charging systems.

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality: - LT8610AB: A synchronous step-down regulator with adjustable output voltage and high efficiency. - LT8645S: A synchronous buck-boost converter with a wide input voltage range and high output current capability. - LT3976: A monolithic buck-boost DC/DC converter with integrated protection features and high efficiency.

These alternative models provide options for different design requirements and can be considered based on specific application needs.

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