Overview
The LT8640HUDC#TRPBF is a high-efficiency, synchronous step-down regulator produced by Analog Devices, Inc. This regulator features the Silent Switcher 2 architecture, designed to minimize EMI emissions while delivering high efficiency across a wide load range. It is particularly suited for applications requiring low noise and high reliability.
The device supports input voltages from 3.4V to 42V and can adjust the output voltage from 0.97V to 42V, with a maximum output current of 5A. The wide switching frequency range of 210kHz to 2MHz and synchronous rectification contribute to its high efficiency and flexible design options.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage Range | 3.4 | - | 42 | V |
| Output Voltage Range | 0.97 | - | 42 | V |
| Maximum Output Current | - | - | 5 | A |
| Switching Frequency Range | 210kHz | - | 2MHz | - |
| Quiescent Current (VEN/UV = 0V) | 0.75 | 0.75 | 3 | µA |
| Feedback Reference Voltage (VIN = 6V, ILOAD = 0.5A) | 0.958 | 0.970 | 0.982 | V |
| Operating Temperature Range | -40°C | - | 150°C | - |
| Package Type | - | - | 18-Lead (3mm × 4mm) Plastic QFN | - |
Key Features
- High Efficiency: The LT8640HUDC#TRPBF offers high efficiency over a wide load range, making it suitable for various applications.
- Silent Switcher 2 Architecture: This architecture minimizes EMI emissions, providing low noise performance.
- Synchronous Rectification: Ensures high efficiency by using synchronous rectification.
- Wide Switching Frequency Range: The device can operate at frequencies between 210kHz and 2MHz, offering flexible design options.
- Thermally Enhanced Package: The 18-lead QFN package is thermally enhanced for improved power dissipation.
- Adjustable Output Voltage: Output voltage can be adjusted from 0.97V to 42V.
- Stable Operation with Low-ESR Ceramic Output Capacitors: Ensures stable operation even with low-ESR ceramic capacitors.
Applications
- Industrial Equipment: Suitable for various industrial applications due to its high reliability and efficiency.
- Automotive Electronics: Versions of this part are available with controlled manufacturing to support automotive applications.
- Telecommunications Equipment: Ideal for telecommunications equipment requiring low noise and high efficiency.
- Test and Measurement Instruments: Used in test and measurement instruments where precision and reliability are crucial.
Q & A
- What is the input voltage range of the LT8640HUDC#TRPBF?
The input voltage range is from 3.4V to 42V.
- What is the maximum output current of the LT8640HUDC#TRPBF?
The maximum output current is 5A.
- What is the switching frequency range of the LT8640HUDC#TRPBF?
The switching frequency range is from 210kHz to 2MHz.
- What is the Silent Switcher 2 architecture used for in the LT8640HUDC#TRPBF?
The Silent Switcher 2 architecture is used to minimize EMI emissions while delivering high efficiency.
- What type of package does the LT8640HUDC#TRPBF come in?
The device comes in an 18-lead (3mm × 4mm) Plastic QFN package.
- What is the operating temperature range of the LT8640HUDC#TRPBF?
The operating temperature range is from -40°C to 150°C.
- Is the LT8640HUDC#TRPBF ROHS compliant?
Yes, the LT8640HUDC#TRPBF is ROHS3 compliant.
- What are some common applications of the LT8640HUDC#TRPBF?
Common applications include industrial equipment, automotive electronics, telecommunications equipment, and test and measurement instruments.
- How does the LT8640HUDC#TRPBF ensure stable operation with output capacitors?
The device ensures stable operation even with low-ESR ceramic output capacitors).
- Can the LT8640HUDC#TRPBF be used in automotive applications?
Yes, versions of this part are available with controlled manufacturing to support automotive applications).
