Overview
The LT3995IMSE#TRPBF, produced by Analog Devices Inc., is an adjustable frequency monolithic buck switching regulator. This regulator is designed to accept a wide input voltage range up to 60V, making it versatile for various power management applications. The LT3995 features a low quiescent current design, which enhances efficiency and reduces power consumption. It is available in a 16-lead MSOP package, suitable for space-constrained designs.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Units |
|---|---|---|---|---|
| Minimum Input Voltage | 4 | 4.3 | - | V |
| Dropout Comparator Threshold (VIN – OUT) | 430 | 500 | 570 | mV |
| Quiescent Current from VIN (VEN Low, VSYNC Low) | 0.7 | 1.6 | 2.7 | µA |
| Feedback Voltage (FB Pin) | 1.173 | 1.197 | 1.222 | V |
| Output Current | - | - | 3 | A |
| Switching Frequency | - | - | Up to 2MHz | - |
Key Features
- Adjustable Frequency: The LT3995 allows for adjustable switching frequencies up to 2MHz, providing flexibility in design.
- Low Quiescent Current: Designed with low quiescent current, this regulator minimizes power consumption and enhances efficiency.
- Wide Input Voltage Range: Accepts input voltages up to 60V, making it suitable for a variety of applications.
- Current Limit Foldback: Features a current limit foldback mechanism to throttle back the current limit during overload conditions, reducing power dissipation.
- Thermal Shutdown: Includes thermal shutdown protection to prevent excessive power dissipation in elevated ambient temperatures.
- Power Good Comparator: Equipped with a power good comparator that trips when the FB pin is at 91.6% of its regulated value.
Applications
- Automotive Systems: Versions with the #W suffix are available to support the quality and reliability requirements of automotive applications.
- Industrial Power Supplies: Suitable for industrial power supply designs due to its wide input voltage range and high efficiency.
- Telecommunications: Can be used in telecommunications equipment where reliable and efficient power management is crucial.
- Consumer Electronics: Applicable in consumer electronics requiring compact and efficient power regulation.
Q & A
- What is the maximum input voltage the LT3995 can handle?
The LT3995 can handle a maximum input voltage of up to 60V.
- What is the typical feedback voltage of the LT3995?
The typical feedback voltage is 1.197V.
- What is the maximum output current of the LT3995?
The LT3995 can provide up to 3A of output current.
- Does the LT3995 have thermal shutdown protection?
Yes, the LT3995 includes thermal shutdown protection to prevent excessive power dissipation.
- What is the purpose of the power good comparator in the LT3995?
The power good comparator trips when the FB pin is at 91.6% of its regulated value, indicating that the output voltage is within the specified range.
- How does the LT3995 handle overload conditions?
The LT3995 features a current limit foldback mechanism to throttle back the current limit during overload conditions, reducing power dissipation.
- What is the minimum off-time of the LT3995?
The minimum off-time is approximately 200ns.
- Can the LT3995 be used in automotive applications?
Yes, versions with the #W suffix are available to support the quality and reliability requirements of automotive applications.
- What is the typical quiescent current of the LT3995?
The typical quiescent current is 1.6µA when VEN is low and VSYNC is low.
- What package type is the LT3995IMSE#TRPBF available in?
The LT3995IMSE#TRPBF is available in a 16-lead MSOP package.
