Overview
The LTC3119EUFD#TRPBF is a high-efficiency, monolithic buck-boost DC/DC converter from Analog Devices Inc. This device is designed to deliver up to 5A of continuous output current and operates over a wide input voltage range of 2.5V to 18V. It is particularly suited for applications requiring operation from unregulated power sources, such as battery stacks and backup capacitors. The LTC3119EUFD#TRPBF is available in a thermally enhanced 28-lead QFN package, making it ideal for space-constrained designs.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.5V to 18V |
| Output Voltage Range | 0.8V to 18V |
| Output Current | Up to 5A |
| Switching Frequency | 400kHz to 2MHz |
| Topology | Buck-Boost |
| Package Type | 28-QFN (4x5mm) |
| Operating Temperature Range | -40°C to 125°C |
| Synchronous Rectifier | Yes |
| Control Mode | Current-Mode |
| Control Technique | Pulse Width Modulation (PWM) |
Key Features
- High efficiency buck-boost converter capable of delivering up to 5A of continuous output current.
- Wide input voltage range of 2.5V to 18V, with operation possible down to 250mV after start-up.
- Adjustable output voltage from 0.8V to 18V.
- Thermal overload protection and output short-circuit protection.
- Less than 3µA shutdown current and power good indicator.
- Burst Mode operation and maximum power point control.
- Thermally enhanced 28-lead QFN package.
Applications
The LTC3119EUFD#TRPBF is suitable for a variety of applications, including:
- Power supplies for battery-powered devices.
- Backup power systems using supercapacitors or batteries.
- Industrial control systems requiring wide input voltage ranges.
- Automotive and aerospace systems where robust and efficient power conversion is critical.
- Renewable energy systems, such as solar or wind power, where maximum power point tracking is necessary.
Q & A
- What is the input voltage range of the LTC3119EUFD#TRPBF?
The input voltage range is 2.5V to 18V, with operation possible down to 250mV after start-up. - What is the maximum output current of the LTC3119EUFD#TRPBF?
The maximum output current is up to 5A. - What is the switching frequency range of the LTC3119EUFD#TRPBF?
The switching frequency range is 400kHz to 2MHz. - What type of package does the LTC3119EUFD#TRPBF come in?
The device is available in a 28-lead QFN (4x5mm) package. - What are the key protection features of the LTC3119EUFD#TRPBF?
The device includes thermal overload protection, output short-circuit protection, and less than 3µA shutdown current. - Is the LTC3119EUFD#TRPBF RoHS compliant?
Yes, the LTC3119EUFD#TRPBF is RoHS compliant. - What is the operating temperature range of the LTC3119EUFD#TRPBF?
The operating temperature range is -40°C to 125°C. - Does the LTC3119EUFD#TRPBF support Burst Mode operation?
Yes, the device supports Burst Mode operation. - What is the control mode of the LTC3119EUFD#TRPBF?
The control mode is current-mode with pulse width modulation (PWM). - Is the LTC3119EUFD#TRPBF suitable for renewable energy applications?
Yes, it is suitable for renewable energy systems due to its maximum power point control feature.
