LTC3619BIMSE#PBF

Product Overview

Category

LTC3619BIMSE#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

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

Characteristics

• High efficiency: The LTC3619BIMSE#PBF offers excellent power conversion efficiency, 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.
• Low quiescent current: The device has a low quiescent current, ensuring minimal power consumption during standby or idle modes.
• Compact package: LTC3619BIMSE#PBF is available in a small form factor package, enabling space-saving designs.
• Robustness: This IC is designed to withstand harsh operating conditions, ensuring reliable performance in demanding environments.

Package and Quantity

The LTC3619BIMSE#PBF is packaged in a 10-pin MSOP (Mini Small Outline Package). It is typically sold in reels containing a specified quantity of units.

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 3A
• Switching Frequency: Adjustable up to 4MHz
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 60µA (typical)

Pin Configuration

The LTC3619BIMSE#PBF features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. SW: Switching node connection
4. FB: Feedback pin for output voltage regulation
5. EN: Enable pin for turning the device on/off
6. VOUT: Output voltage pin
7. PGND: Power ground reference pin
8. SS: Soft-start capacitor connection
9. BST: Boost capacitor connection
10. VCC: Supply voltage pin

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• Adjustable output voltage enables flexibility in meeting specific system requirements.
• Integrated power switches simplify circuit design and reduce external component count.
• Soft-start feature prevents excessive inrush current during startup, enhancing system reliability.
• Overcurrent and overtemperature protection mechanisms ensure safe operation under abnormal conditions.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and longer battery life.
• Compact package facilitates space-constrained designs.
• Wide input voltage range enhances versatility across different applications.
• Robustness ensures reliable performance in challenging environments.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Higher switching frequencies can introduce electromagnetic interference (EMI) concerns.

Working Principles

The LTC3619BIMSE#PBF operates as a synchronous buck-boost DC-DC converter. It utilizes a combination of inductors, capacitors, and integrated power switches to efficiently regulate the input voltage to the desired output voltage level. The device employs pulse-width modulation (PWM) techniques to control the duty cycle of the switches, achieving the desired voltage conversion.

Detailed Application Field Plans

The LTC3619BIMSE#PBF finds applications in various fields, including but not limited to: - Portable electronic devices (e.g., smartphones, tablets, portable media players) - Battery-powered systems (e.g., wireless sensors, IoT devices) - Industrial equipment and automation systems - Automotive electronics - Medical devices

Alternative Models

For those seeking alternative options, the following models provide similar functionality to the LTC3619BIMSE#PBF: - LTC3619AIMSE#PBF - LTC3619EMSE#PBF - LTC3619HMSE#PBF

These alternative models offer comparable specifications and pin configurations, allowing for seamless substitution in relevant applications.

In conclusion, the LTC3619BIMSE#PBF is a highly efficient integrated circuit designed for power management applications. Its wide input voltage range, compact package, and robustness make it suitable for various electronic devices and systems. With its functional features, advantages, and detailed application field plans, this IC provides an effective solution for voltage regulation and power conversion needs.