Overview
The LT8646SEV#PBF is a high-performance synchronous step-down regulator from Analog Devices Inc., featuring the second-generation Silent Switcher architecture. This regulator is designed to minimize EMI emissions, making it suitable for applications requiring low noise and high efficiency. The LT8646SEV#PBF operates over a wide input voltage range of 3.4V to 42V and can deliver an output voltage from 0.97V to 41.58V. It is available in a 32-lead LQFN package, which has a compact footprint of 6mm x 4mm x 0.94mm, enhancing thermal performance and reducing board space.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage | 3.4 | 42 | V | |
| Output Voltage | 0.97 | 41.58 | V | |
| Maximum Output Current | 8 | A | ||
| Quiescent Current in Shutdown | 0.9 | 3 | µA | |
| Switching Frequency | 200 kHz | 3 MHz | ||
| Operating Junction Temperature Range | -40 | 125 | °C | |
| Package Type | LQFN-32 | |||
| RoHS Compliance | Yes |
Key Features
- Second-generation Silent Switcher architecture to minimize EMI emissions.
- Wide input voltage range: 3.4V to 42V.
- Output voltage adjustable from 0.97V to 41.58V.
- High efficiency with low quiescent current in shutdown mode (0.9µA to 3µA).
- Compact 32-lead LQFN package with a footprint of 6mm x 4mm x 0.94mm.
- Operating junction temperature range: -40°C to 125°C.
- RoHS and WEEE compliant.
Applications
The LT8646SEV#PBF is suitable for a variety of applications requiring high efficiency, low noise, and compact design. These include:
- Automotive systems: The regulator is available in automotive-grade versions, supporting the quality and reliability requirements of automotive applications.
- Industrial power supplies: Ideal for high-efficiency step-down conversion in industrial power systems.
- Telecommunications: Used in telecom equipment where low EMI and high reliability are crucial.
- Medical devices: Suitable for medical equipment requiring low noise and high efficiency.
Q & A
- What is the input voltage range of the LT8646SEV#PBF?
The input voltage range is from 3.4V to 42V. - What is the adjustable output voltage range of the LT8646SEV#PBF?
The output voltage can be adjusted from 0.97V to 41.58V. - What is the quiescent current in shutdown mode for the LT8646SEV#PBF?
The quiescent current in shutdown mode is between 0.9µA and 3µA. - What is the switching frequency range of the LT8646SEV#PBF?
The switching frequency range is from 200 kHz to 3 MHz. - Is the LT8646SEV#PBF RoHS compliant?
Yes, the LT8646SEV#PBF is RoHS and WEEE compliant. - What is the operating junction temperature range of the LT8646SEV#PBF?
The operating junction temperature range is from -40°C to 125°C. - What package type is the LT8646SEV#PBF available in?
The LT8646SEV#PBF is available in a 32-lead LQFN package. - Is the LT8646SEV#PBF suitable for automotive applications?
Yes, the LT8646SEV#PBF is available in automotive-grade versions. - What are some common applications for the LT8646SEV#PBF?
Common applications include automotive systems, industrial power supplies, telecommunications, and medical devices. - How does the Silent Switcher architecture benefit the LT8646SEV#PBF?
The Silent Switcher architecture minimizes EMI emissions, making the regulator suitable for applications requiring low noise.
