Overview
The LTC3309AIV#TRMPBF is a high-efficiency, low-noise, monolithic synchronous 6A step-down DC/DC converter produced by Analog Devices Inc. This component operates from a 2.25V to 5.5V input supply and is designed for applications requiring compact, high-performance power management. The LTC3309A features a constant frequency, peak current mode control architecture and is part of the Silent Switcher family, which minimizes EMI emissions. It is available in a 2mm x 2mm LQFN package, making it suitable for space-constrained designs.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Supply Operating Voltage (VIN) | 2.25 | 5.5 | V | |
| Output Voltage Range (VOUT) | 0.5 | VIN | V | |
| Output Current | 6 | A | ||
| Switching Frequency | 1 | 3 | MHz | |
| Minimum On-Time | 22 | ns | ||
| Enable Threshold | 0.375 | 0.4 | 0.425 | V |
| Operating Junction Temperature Range | -40 | 125 | °C | |
| Voltage Regulation Accuracy | 1% |
Key Features
- High efficiency with low noise operation
- Synchronous buck switching regulators with internal compensation
- Programmable frequency from 1MHz to 3MHz
- Low ripple Burst Mode operation for high efficiency at light loads
- Silent Switcher architecture for ultralow EMI emissions
- Output overvoltage protection, short-circuit protection, and thermal shutdown
- Clock synchronization and up to 100% duty cycle operation
- Power Good signal and internal soft start
- Pin compatible with LTC3307 and LTC3308
Applications
- Optical networking and telecommunications
- Servers and data centers
- Automotive and industrial systems
- Distributed DC power systems (Point of Load)
- FPGA, ASIC, and processor core supplies
- Battery-operated systems
Q & A
- What is the input voltage range of the LTC3309AIV#TRMPBF?
The input voltage range is from 2.25V to 5.5V. - What is the maximum output current of the LTC3309AIV#TRMPBF?
The maximum output current is 6A. - What is the switching frequency range of the LTC3309AIV#TRMPBF?
The switching frequency range is from 1MHz to 3MHz. - What is the minimum on-time of the LTC3309AIV#TRMPBF?
The minimum on-time is 22ns. - Does the LTC3309AIV#TRMPBF support clock synchronization?
Yes, it supports clock synchronization. - What is the operating junction temperature range of the LTC3309AIV#TRMPBF?
The operating junction temperature range is from -40°C to 125°C. - Does the LTC3309AIV#TRMPBF have built-in protection features?
Yes, it includes output overvoltage protection, short-circuit protection, and thermal shutdown. - Is the LTC3309AIV#TRMPBF suitable for automotive applications?
Yes, versions of this part are available with controlled manufacturing to support automotive applications. - What package type is the LTC3309AIV#TRMPBF available in?
It is available in a 2mm x 2mm LQFN package. - Does the LTC3309AIV#TRMPBF have a Power Good signal?
Yes, it includes a Power Good signal and internal soft start.
