Overview
The LT8643SIV#PBF is a high-efficiency synchronous step-down regulator produced by Analog Devices Inc. This component is part of the LT8643S series and is designed to provide a compact and efficient power management solution for modern electronic devices and systems. It features the second-generation Silent Switcher architecture, which minimizes EMI emissions, making it suitable for a wide range of applications, including those requiring low noise and high efficiency.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Series | LT8643S |
| Topology | Buck |
| Package / Case | LQFN-24 |
| Mounting Style | SMD/SMT |
| Output Voltage | Adjustable 0.97 V to 41.58 V |
| Output Current | 6 A |
| Number of Outputs | 1 Output |
| Input Voltage, Min | 3.4 V |
| Input Voltage, Max | 42 V |
| Quiescent Current | 2.5 µA |
| Switching Frequency | 200 kHz to 3 MHz |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +125°C |
| RoHS | Compliant |
| Moisture Sensitive | Yes |
Key Features
- Second-generation Silent Switcher architecture to minimize EMI emissions.
- High efficiency synchronous step-down converter.
- Adjustable output voltage from 0.97 V to 41.58 V.
- High output current capability of up to 6 A.
- Wide input voltage range from 3.4 V to 42 V.
- Low quiescent current of 2.5 µA.
- External synchronization and frequency adjustment range from 200 kHz to 3 MHz.
- Burst mode operation and tracking capabilities.
- Internal bypass capacitors for reduced noise.
- Compact 4mm × 4mm LQFN package.
Applications
The LT8643SIV#PBF is versatile and can be used in a variety of applications, including:
- Automotive systems requiring high reliability and low EMI.
- Industrial power supplies where efficiency and compactness are crucial.
- Consumer electronics needing high-performance power management solutions.
- Medical devices that require low noise and high efficiency power conversion.
- Telecommunication equipment and networking devices.
Q & A
- What is the output voltage range of the LT8643SIV#PBF?
The output voltage is adjustable from 0.97 V to 41.58 V.
- What is the maximum output current of the LT8643SIV#PBF?
The maximum output current is 6 A.
- What is the input voltage range of the LT8643SIV#PBF?
The input voltage range is from 3.4 V to 42 V.
- What is the quiescent current of the LT8643SIV#PBF?
The quiescent current is 2.5 µA.
- What is the switching frequency range of the LT8643SIV#PBF?
The switching frequency range is from 200 kHz to 3 MHz.
- Is the LT8643SIV#PBF RoHS compliant?
Yes, the LT8643SIV#PBF is RoHS compliant.
- What is the operating temperature range of the LT8643SIV#PBF?
The operating temperature range is from -40°C to +125°C.
- What is the package type of the LT8643SIV#PBF?
The package type is LQFN-24.
- Does the LT8643SIV#PBF support external synchronization?
Yes, it supports external synchronization.
- What are some key features of the Silent Switcher architecture in the LT8643SIV#PBF?
The Silent Switcher architecture minimizes EMI emissions, includes internal bypass capacitors, and supports burst mode operation and tracking.
