Overview
The LT3980IDE#TRPBF is a high-performance, adjustable frequency monolithic buck switching regulator produced by Analog Devices Inc. This device is part of the LT3980 series and is known for its versatility and robust performance. It accepts input voltages up to 58V (with 80V transient capability) and can operate over a wide temperature range of –40°C to 125°C. The LT3980IDE#TRPBF is packaged in a 14-lead (3mm × 4mm) plastic DFN, making it suitable for a variety of applications requiring efficient and reliable voltage regulation.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Voltage | Continuous Operation | - | - | 60 | V |
| Input Voltage | Transient (1 minute) | - | - | 80 | V |
| Output Current | - | - | - | 2 | A |
| Switching Frequency | RT = 8.66k | 1.95 | 2.25 | - | MHz |
| Feedback Voltage | - | 782 | 790 | 798 | mV |
| Quiescent Current | VBD = 3V, Not Switching | 0.01 | 0.5 | 1.15 | µA |
| Operating Temperature Range | - | -40 | - | 125 | °C |
Key Features
- Adjustable Frequency: The LT3980IDE#TRPBF allows for adjustable switching frequencies from 100kHz to 2.4MHz, providing flexibility in design.
- High Input Voltage Capability: It can handle input voltages up to 58V with transient capability of 80V, making it suitable for high-voltage applications.
- Low Quiescent Current: The device features a low quiescent current, which is beneficial for power-efficient designs.
- Multiple Operating Modes: It supports various operating modes including Burst Mode, pulse-skipping mode, and synchronization with an external clock.
- Compact Packaging: Available in a 14-lead (3mm × 4mm) plastic DFN package, which is ideal for space-constrained applications.
Applications
- Industrial Power Supplies: Suitable for high-voltage industrial power supplies where reliability and efficiency are critical.
- Automotive Systems: Can be used in automotive systems due to its ability to handle high input voltages and wide operating temperature range.
- Telecommunications Equipment: Applicable in telecommunications equipment where stable and efficient voltage regulation is necessary.
- Medical Devices: Used in medical devices that require precise voltage regulation and high reliability.
Q & A
- What is the maximum input voltage for the LT3980IDE#TRPBF?
The maximum continuous input voltage is 60V, with a transient capability of 80V for 1 minute.
- What is the operating temperature range of the LT3980IDE#TRPBF?
The operating temperature range is –40°C to 125°C.
- What are the different operating modes supported by the LT3980IDE#TRPBF?
The device supports Burst Mode, pulse-skipping mode, and synchronization with an external clock.
- What is the typical switching frequency of the LT3980IDE#TRPBF?
The typical switching frequency can be adjusted from 100kHz to 2.4MHz, with a typical value of 2.25MHz for RT = 8.66k.
- What is the feedback voltage of the LT3980IDE#TRPBF?
The feedback voltage is typically 790mV.
- What is the quiescent current of the LT3980IDE#TRPBF when not switching?
The quiescent current is typically 0.5µA when VBD = 3V and not switching.
- What are the package options available for the LT3980IDE#TRPBF?
The device is available in a 14-lead (3mm × 4mm) plastic DFN package.
- Is the LT3980IDE#TRPBF suitable for high-voltage applications?
Yes, it is suitable for high-voltage applications due to its ability to handle input voltages up to 58V.
- Can the LT3980IDE#TRPBF be used in automotive systems?
Yes, it can be used in automotive systems due to its high input voltage capability and wide operating temperature range.
- What is the typical error amp gain of the LT3980IDE#TRPBF?
The typical error amp gain is 1800.
