Overview
The LTC3119EUFD#PBF is a high-efficiency synchronous buck-boost DC/DC converter from Analog Devices Inc., designed to meet the needs of demanding power management applications. This monolithic converter can deliver up to 5A of continuous output current and operates over a wide input voltage range of 2.7V to 18V. It features a proprietary 4-switch PWM architecture, which provides seamless and low-noise operation from input voltages above, equal to, or below the output voltage. The device is particularly suited for applications requiring efficient power conversion from various input sources, including single-cell Li-ion and two-cell NiMH batteries or supercaps.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 18 | V |
| Output Voltage Range | 0.8 to 18 | V |
| Maximum Output Current | 5 | A |
| Switching Frequency Range | 400 kHz to 2 MHz | |
| Package Type | 28-Lead QFN (Exposed Pad) | |
| Operating Temperature Range | -40°C to 125°C | |
| VCC Regulation Voltage | 3.55 to 3.85 | V |
| VCC Dropout Voltage | 90 mV | V |
| VCC Current Limit | 180 mA | A |
Key Features
- High-efficiency synchronous buck-boost converter with a proprietary 4-switch PWM architecture for seamless and low-noise operation.
- Wide input voltage range of 2.7V to 18V and output voltage range of 0.8V to 18V.
- Maximum output current of up to 5A.
- External frequency programming and synchronization using an internal PLL, allowing operation over a wide switching frequency range of 400kHz to 2MHz.
- Very low resistance internal power switches to minimize the total solution footprint).
- Fast startup time and persistent low power mode for efficient energy utilization).
- Sophisticated thermal management and reliable autostart capability).
Applications
- Integrated power management in portable electronics and IoT devices).
- Efficient energy utilization in battery-powered applications, including single-cell Li-ion and two-cell NiMH batteries or supercaps).
- Industrial sensors and other applications requiring regulated power supply from various input sources).
Q & A
- Q: What is the input voltage range of the LTC3119EUFD#PBF?
A: The input voltage range is 2.7V to 18V).
- Q: What is the maximum output current of the LTC3119EUFD#PBF?
A: The maximum output current is up to 5A).
- Q: What is the switching frequency range of the LTC3119EUFD#PBF?
A: The switching frequency range is 400 kHz to 2 MHz).
- Q: What package type does the LTC3119EUFD#PBF come in?
A: It comes in a 28-Lead QFN (Exposed Pad) package).
- Q: What is the operating temperature range of the LTC3119EUFD#PBF?
A: The operating temperature range is -40°C to 125°C).
- Q: What are some common applications of the LTC3119EUFD#PBF?
A: Common applications include integrated power management in portable electronics, IoT devices, and industrial sensors).
- Q: Does the LTC3119EUFD#PBF support external frequency programming?
A: Yes, it supports external frequency programming and synchronization using an internal PLL).
- Q: What are the key features of the LTC3119EUFD#PBF's power switches?
A: The power switches have very low resistance, which helps minimize the total solution footprint).
- Q: How can I find detailed information about the LTC3119EUFD#PBF, such as application notes and factory information?
A: You can find comprehensive details on the Analog Devices, Inc. website or through distributors like Ovaga and Digi-Key).
- Q: Are there any equivalent products to the LTC3119EUFD#PBF?
A: Yes, some equivalent products include LTC3119EMSE#PBF, LTC3119EFE#PBF, and LTC3119HFE#PBF).
