Overview
The LT8640EUDC#TRPBF is a high-efficiency, 42V, 5A synchronous step-down regulator produced by Analog Devices Inc. This regulator features the Silent Switcher 2 architecture, which is designed to minimize EMI emissions while delivering high efficiency across a wide load range. It is suitable for a variety of applications, including industrial equipment, automotive electronics, telecommunications equipment, and test and measurement instruments.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage Range | 3.4 | 42 | V | |
| Output Voltage Range | 0.97 | 42 | V | |
| Output Current | 5 | A | ||
| Switching Frequency Range | 210kHz | 2MHz | ||
| Minimum Input Voltage | 2.9 | 3.4 | V | |
| Quiescent Current (VEN/UV = 0V) | 0.75 | 0.75 | 3 | µA |
| Feedback Reference Voltage | 0.958 | 0.964 | 0.970 | V |
| Operating Temperature Range | -40°C | 125°C / 150°C | ||
| Package Type | 18-Lead 3mm × 4mm QFN |
Key Features
- High efficiency over a wide load range
- Silent Switcher 2 architecture for low noise and EMI performance
- Synchronous rectification for high efficiency
- Adjustable output voltage from 0.97V to 42V
- Wide switching frequency range of 210kHz to 2MHz
- Thermally enhanced 18-lead 3mm × 4mm QFN package for improved power dissipation
- Stable operation with low-ESR ceramic output capacitors
- AEC-Q100 qualified for automotive applications
- Output soft-start and tracking capabilities
- Forced Continuous Mode (LT8640-1 only)
- Safely tolerates inductor saturation in overload
Applications
- Industrial equipment
- Automotive electronics
- Telecommunications equipment
- Test and measurement instruments
- GSM power supplies
- General-purpose step-down applications
Q & A
- What is the input voltage range of the LT8640EUDC#TRPBF?
The input voltage range is from 3.4V to 42V.
- What is the maximum output current of the LT8640EUDC#TRPBF?
The maximum output current is 5A.
- What is the switching frequency range of the LT8640EUDC#TRPBF?
The switching frequency range is from 210kHz to 2MHz.
- What architecture does the LT8640EUDC#TRPBF use to minimize EMI emissions?
The Silent Switcher 2 architecture is used to minimize EMI emissions.
- Is the LT8640EUDC#TRPBF AEC-Q100 qualified for automotive applications?
- What type of package does the LT8640EUDC#TRPBF come in?
- What is the operating temperature range of the LT8640EUDC#TRPBF?
- Does the LT8640EUDC#TRPBF support synchronous rectification?
- Is the LT8640EUDC#TRPBF ROHS3 compliant?
- What are some of the key applications of the LT8640EUDC#TRPBF?
