Overview
The LT8614EUDC#TRPBF is a high-performance step-down (buck) switching regulator IC produced by Analog Devices Inc. This regulator is designed with the Silent Switcher architecture, which minimizes EMI emissions while delivering high efficiency across a wide range of frequencies. It is suitable for applications requiring low noise and high reliability.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Units |
|---|---|---|---|---|
| Input Voltage | 3.4 | - | 42 | V |
| Output Voltage | 0.79 | - | 41.8 | V |
| Maximum Output Current | - | - | 4 | A |
| Switching Frequency | 200 kHz | - | 3 MHz | - |
| Minimum Operating Temperature | -40 | - | - | °C |
| Maximum Operating Temperature | - | - | 125 | °C |
| Package Type | - | - | 18-Lead QFN | - |
| Quiescent Current (VEN/UV = 0V) | 1.0 | 1.0 | 3 | µA |
Key Features
- Silent Switcher Architecture: Minimizes EMI emissions and delivers high efficiency.
- Adjustable Output Voltage: From 0.79V to 41.8V.
- High Output Current: Up to 4A.
- Wide Input Voltage Range: 3.4V to 42V.
- Programmable Switching Frequency: From 200 kHz to 3 MHz using an external resistor.
- Output Tracking and Soft-Start: Allows user control of output voltage ramp rate during start-up.
- Low Quiescent Current: As low as 1.0 µA when VEN/UV = 0V.
- Automotive Grade: Versions available with controlled manufacturing to support automotive applications.
Applications
- Automotive Systems: Suitable for automotive applications due to its robust design and automotive-grade versions.
- Industrial Power Supplies: Ideal for high-reliability industrial power supply systems.
- Communication Equipment: Used in communication devices requiring low noise and high efficiency.
- Medical Devices: Applicable in medical equipment where high reliability and low EMI are crucial.
- Consumer Electronics: Suitable for various consumer electronic devices needing efficient power management.
Q & A
- What is the input voltage range of the LT8614EUDC#TRPBF?
The input voltage range is from 3.4V to 42V.
- What is the maximum output current of the LT8614EUDC#TRPBF?
The maximum output current is up to 4A.
- What is the switching frequency range of the LT8614EUDC#TRPBF?
The switching frequency can be programmed from 200 kHz to 3 MHz.
- What is the operating temperature range of the LT8614EUDC#TRPBF?
The operating temperature range is from -40°C to 125°C.
- Does the LT8614EUDC#TRPBF support automotive applications?
Yes, versions of this part are available with controlled manufacturing to support automotive applications.
- How does the Silent Switcher architecture benefit the LT8614EUDC#TRPBF?
The Silent Switcher architecture minimizes EMI emissions while delivering high efficiency.
- Can the output voltage of the LT8614EUDC#TRPBF be adjusted?
Yes, the output voltage is adjustable from 0.79V to 41.8V.
- What is the quiescent current of the LT8614EUDC#TRPBF when VEN/UV = 0V?
The quiescent current is as low as 1.0 µA when VEN/UV = 0V.
- How is the switching frequency programmed in the LT8614EUDC#TRPBF?
The switching frequency is programmed using an external resistor tied between the RT pin and ground.
- Does the LT8614EUDC#TRPBF have a soft-start feature?
Yes, it has an output tracking and soft-start feature controlled by the TR/SS pin.
