Specifications
| Attribute | Value |
| Package | Tube |
| ProductStatus | Obsolete |
| Function | Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck-Boost |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 2.5V |
| Voltage-Input(Max) | 18V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 18V |
| Current-Output | 5A |
| Frequency-Switching | 400kHz ~ 2MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 125°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 28-WFQFN Exposed Pad |
Overview
Description
The LTC3119EUFD is a versatile, highly efficient, monolithic synchronous buck-boost DC/DC converter. Designed by Analog Devices, it can seamlessly deliver a consistent output voltage from input sources that are either above, below, or equal to the output voltage. This feature is particularly beneficial for battery-operated devices where the input voltage may fluctuate.
Operating from an input voltage range of 2.5V to 18V, the LTC3119EUFD can provide an output current of up to 5A and supports an output voltage range from 0.8V to 18V. It boasts a high efficiency of up to 95%, which extends battery life in portable applications. Additionally, the device features a programmable oscillator frequency of up to 2MHz, allowing for compact, low-profile external components.
The LTC3119EUFD also integrates various protection mechanisms, including over-temperature and short-circuit protection, ensuring reliable operation under challenging conditions. Its compact 4mm x 5mm QFN package makes it suitable for space-constrained applications. Overall, the LTC3119EUFD is ideal for applications requiring high efficiency, flexibility, and reliability.
Operating from an input voltage range of 2.5V to 18V, the LTC3119EUFD can provide an output current of up to 5A and supports an output voltage range from 0.8V to 18V. It boasts a high efficiency of up to 95%, which extends battery life in portable applications. Additionally, the device features a programmable oscillator frequency of up to 2MHz, allowing for compact, low-profile external components.
The LTC3119EUFD also integrates various protection mechanisms, including over-temperature and short-circuit protection, ensuring reliable operation under challenging conditions. Its compact 4mm x 5mm QFN package makes it suitable for space-constrained applications. Overall, the LTC3119EUFD is ideal for applications requiring high efficiency, flexibility, and reliability.
Equivalent
The LTC3119EUFD is a buck-boost DC/DC converter produced by Analog Devices. Equivalent products include:
1. Texas Instruments TPS63802: A highly efficient buck-boost converter.
2. Maxim Integrated (now part of Analog Devices) MAX77827: A compact buck-boost converter.
3. Microchip Technology MCP1640: A versatile buck-boost regulator.
4. STMicroelectronics STBB1: A high-efficiency buck-boost converter.
5. Rohm Semiconductor BD83070GWL: A low-power buck-boost converter.
Ensure compatibility in terms of specifications and application requirements before selecting an alternative.
1. Texas Instruments TPS63802: A highly efficient buck-boost converter.
2. Maxim Integrated (now part of Analog Devices) MAX77827: A compact buck-boost converter.
3. Microchip Technology MCP1640: A versatile buck-boost regulator.
4. STMicroelectronics STBB1: A high-efficiency buck-boost converter.
5. Rohm Semiconductor BD83070GWL: A low-power buck-boost converter.
Ensure compatibility in terms of specifications and application requirements before selecting an alternative.
Features
The LTC3119EUFD is a versatile buck-boost DC/DC converter designed to efficiently manage power across a broad range of input voltages from 2.5V to 18V and deliver a regulated output between 2V and 18V. Its key features include:
1. Wide Input and Output Range: Operates from 2.5V to 18V, suitable for various applications.
2. High Efficiency: Delivers up to 95% efficiency, optimizing power use and reducing heat.
3. Output Current: Supports up to 5A continuous output current.
4. Seamless Transition: Provides smooth transitions between buck and boost modes.
5. Low Noise: Features a fixed 800kHz or adjustable frequency operation to minimize noise.
6. Programmable Settings: Adjustable output voltage and switching frequency to meet specific requirements.
7. Built-in Protection: Includes overcurrent, overtemperature, and short-circuit protection.
8. Low Quiescent Current: Offers low standby power consumption, enhancing battery life in portable applications.
9. Compact Package: Available in a 28-lead 4mm × 5mm QFN package, optimizing space.
These features make the LTC3119EUFD suitable for a wide array of applications, including battery-powered devices, portable instruments, and industrial systems.
1. Wide Input and Output Range: Operates from 2.5V to 18V, suitable for various applications.
2. High Efficiency: Delivers up to 95% efficiency, optimizing power use and reducing heat.
3. Output Current: Supports up to 5A continuous output current.
4. Seamless Transition: Provides smooth transitions between buck and boost modes.
5. Low Noise: Features a fixed 800kHz or adjustable frequency operation to minimize noise.
6. Programmable Settings: Adjustable output voltage and switching frequency to meet specific requirements.
7. Built-in Protection: Includes overcurrent, overtemperature, and short-circuit protection.
8. Low Quiescent Current: Offers low standby power consumption, enhancing battery life in portable applications.
9. Compact Package: Available in a 28-lead 4mm × 5mm QFN package, optimizing space.
These features make the LTC3119EUFD suitable for a wide array of applications, including battery-powered devices, portable instruments, and industrial systems.
Pinout
The LTC3119EUFD is a high-efficiency, monolithic buck-boost DC/DC converter. It comes in a 4mm × 5mm 28-lead plastic QFN package. The device is designed to provide a regulated output voltage across a wide range of input voltages, making it suitable for applications where the input voltage can be above, below, or equal to the output voltage.
Key features include:
- Pin Count: 28 pins
- Wide Input Voltage Range: 2.5V to 18V
- Output Voltage: Adjustable from 2V to 18V
- Output Current: Up to 5A
- High Efficiency: Up to 95%
- Quiescent Current: As low as 30µA in Burst Mode operation
The LTC3119EUFD is useful in various applications such as battery-operated devices, portable instruments, and backup power systems. Its wide input and output voltage ranges, combined with high-efficiency performance, make it versatile for a variety of power supply designs.
Key features include:
- Pin Count: 28 pins
- Wide Input Voltage Range: 2.5V to 18V
- Output Voltage: Adjustable from 2V to 18V
- Output Current: Up to 5A
- High Efficiency: Up to 95%
- Quiescent Current: As low as 30µA in Burst Mode operation
The LTC3119EUFD is useful in various applications such as battery-operated devices, portable instruments, and backup power systems. Its wide input and output voltage ranges, combined with high-efficiency performance, make it versatile for a variety of power supply designs.
Manufacturer
The LTC3119EUFD is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Their products are used in a wide range of electronic equipment, serving various industries such as communications, healthcare, industrial automation, and consumer electronics. The company is known for its innovative solutions and high-performance products that enable customers to interpret the world around us by intelligently bridging the physical and digital domains with unmatched technologies that sense, measure, and connect.
Application
The LTC3119EUFD is a versatile buck-boost DC/DC converter commonly used in various applications due to its wide input voltage range and high efficiency. Key application areas include:
1. Battery-Powered Devices: It efficiently manages power in devices running on battery, ensuring extended battery life through its low quiescent current.
2. Portable Electronics: Ideal for portable gadgets requiring stable power supply over a range of input voltages.
3. Industrial and Automotive Systems: Its robustness and reliability make it suitable for powering industrial and automotive electronics.
4. Energy Harvesting Systems: It can efficiently convert harvested energy into usable power, supporting renewable energy applications.
5. Backup Power Solutions: Useful in systems requiring seamless transition between power sources.
1. Battery-Powered Devices: It efficiently manages power in devices running on battery, ensuring extended battery life through its low quiescent current.
2. Portable Electronics: Ideal for portable gadgets requiring stable power supply over a range of input voltages.
3. Industrial and Automotive Systems: Its robustness and reliability make it suitable for powering industrial and automotive electronics.
4. Energy Harvesting Systems: It can efficiently convert harvested energy into usable power, supporting renewable energy applications.
5. Backup Power Solutions: Useful in systems requiring seamless transition between power sources.
Package
The LTC3119EUFD is housed in a 28-lead (4mm x 5mm) plastic DFN (Dual Flat No Leads) package, which is designed for enhanced thermal performance and compact size.
