Overview
The LT8641IUDC#TRPBF is a high-performance synchronous step-down switching regulator from Analog Devices Inc. This device is part of the Silent Switcher architecture, designed to minimize EMI emissions while delivering high efficiency across a wide range of frequencies. It is particularly suited for applications requiring low noise and high reliability.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Units |
|---|---|---|---|---|
| Input Voltage (VIN) | 3.0 | 65 | V | |
| Output Voltage Range | 0.782 | 64 | V | |
| Maximum Output Current | 3.5 | A | ||
| Switching Frequency Range | 200 kHz | 3 MHz | ||
| Quiescent Current (VEN/UV = 0V) | 0.75 | 0.75 | 3 | µA |
| Operating Junction Temperature Range | -40 | 125 | °C | |
| Package Type | 18-Lead QFN |
Key Features
- Silent Switcher Architecture: Designed to minimize EMI emissions, ensuring high efficiency and low noise operation.
- High Efficiency: Achieves high efficiency across a wide range of frequencies.
- Adjustable Output Voltage: Output voltage can be adjusted from 0.782V to 64V.
- Low Quiescent Current: Quiescent current as low as 0.75µA when VEN/UV = 0V.
- Multiple Operating Modes: Supports Burst Mode, pulse-skipping mode, and other modes via the SYNC/MODE pin.
- Overtemperature Protection: Includes overtemperature protection to safeguard the device during overload conditions.
- Tracking Function: The TR/SS pin allows for tracking the output voltage to an external voltage source.
Applications
The LT8641IUDC#TRPBF is ideal for various power management applications, including:
- Industrial power supplies
- Automotive systems (with appropriate temperature and reliability specifications)
- Telecommunications equipment
- High-reliability medical devices
- Any application requiring high efficiency, low noise, and adjustable output voltage.
Q & A
- What is the input voltage range of the LT8641IUDC#TRPBF?
The input voltage range is from 3V to 65V.
- What is the maximum output current of the LT8641IUDC#TRPBF?
The maximum output current is 3.5A.
- What are the operating modes supported by the LT8641IUDC#TRPBF?
The device supports Burst Mode, pulse-skipping mode, and other modes via the SYNC/MODE pin.
- How does the TR/SS pin function in the LT8641IUDC#TRPBF?
The TR/SS pin allows for tracking the output voltage to an external voltage source and also programs the output voltage slew rate.
- What is the quiescent current of the LT8641IUDC#TRPBF when VEN/UV = 0V?
The quiescent current is 0.75µA when VEN/UV = 0V.
- Does the LT8641IUDC#TRPBF have overtemperature protection?
Yes, it includes overtemperature protection to safeguard the device during overload conditions.
- What is the package type of the LT8641IUDC#TRPBF?
The device is packaged in an 18-Lead QFN.
- What is the operating junction temperature range of the LT8641IUDC#TRPBF?
The operating junction temperature range is from -40°C to 125°C.
- Is the LT8641IUDC#TRPBF suitable for automotive applications?
Yes, versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications.
- What is the switching frequency range of the LT8641IUDC#TRPBF?
The switching frequency range is from 200 kHz to 3 MHz.
