Reed Semiconductor Corp. RS53319LR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $7.92 | $7.92 |
| 15+ | $7.67 | $115.05 |
| 25+ | $7.51 | $187.75 |
| 50+ | $7.09 | $354.50 |
| 100+ | $6.26 | $626.00 |
| N+ | $1.25 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Reed Semiconductor Corp. |
| Product Series | |
| Packaging | Cut Tape (CT) | |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.85V |
| Voltage - Input (Max) | 16V |
| Voltage - Output (Min/Fixed) | 0.6V |
| Voltage - Output (Max) | 5.5V |
| Current - Output | 20A |
| Frequency - Switching | 600kHz, 800kHz, 1MHz ~ 2.2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 21-QFN |
| Supplier Device Package | 21-QFN (3x4) |
| ROHS |
The RS53319LR from Reed Semiconductor is a high-current synchronous buck converter designed for demanding power delivery applications. It accepts inputs from 2.85V to 16V and provides an adjustable output from 0.6V to 5.5V, with a continuous current rating of 20A. The device features programmable switching frequencies of 600kHz, 800kHz, or 1MHz to 2.2MHz, allowing designers to balance efficiency and component size. Housed in a compact 21-QFN package, it is suitable for space-constrained industrial, telecom, and computing systems.
- High Current Density: 20A output in a 21-QFN package reduces board space for high-power applications.
- Flexible Frequency Selection: Multiple switching frequency options allow optimization for efficiency or EMI.
- Wide Input Range: 2.85V to 16V input supports 5V and 12V bus architectures.
- Low Output Voltage: 0.6V reference enables powering advanced low-voltage digital loads.
High-Current FPGA/ASIC Power
The 20A output capability and 0.6V minimum output make it ideal for powering high-performance FPGAs, GPUs, and ASICs that require low-voltage, high-current rails with tight regulation.
Telecom and Networking Equipment
With a 16V maximum input, it can operate from 12V intermediate bus rails in telecom switches, routers, and base stations, delivering efficient point-of-load conversion for line cards.
Industrial Robotics and Automation
The wide 2.85V-16V input range accommodates 5V and 12V industrial supply rails. High current supports servo drives, motor controllers, and PLC I/O modules.
Automotive Infotainment
Operating from 12V automotive batteries (with transients up to 16V), it provides stable power for infotainment processors, ADAS compute modules, and camera systems.
Data Center Servers
For server motherboards, the RS53319LR converts 12V to core voltages for CPUs and memory, with high efficiency and selectable frequency to optimize for EMI or efficiency.
Battery-Powered High-Performance Devices
In 2-4 cell Li-ion battery systems (7.2V-16V), it efficiently steps down to 5V or lower for high-drain portable equipment like power tools and medical devices.
- Q: What type of converter is the RS53319LR?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.85V to 16V.
- Q: What is the maximum output current?
- A: It can deliver up to 20A of continuous output current.
- Q: What switching frequencies are supported?
- A: It supports 600kHz, 800kHz, and 1MHz to 2.2MHz configurations.
- Q: What package does it come in?
- A: It is available in a 21-QFN package.
- Q: What is the output voltage range?
- A: The output is adjustable from 0.6V to 5.5V.
- Q: What type of converter is the RS53319LR?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.85V to 16V.
- Q: What is the maximum output current?
- A: It can deliver up to 20A of continuous output current.
- Q: What switching frequencies are supported?
- A: It supports 600kHz, 800kHz, and 1MHz to 2.2MHz configurations.
- Q: What package does it come in?
- A: It is available in a 21-QFN package.
- Q: What is the output voltage range?
- A: The output is adjustable from 0.6V to 5.5V.

RS53319LR.pdf