ETEK MICROELECTRONICS ET8121
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.24 | $0.24 |
| 15+ | $0.23 | $3.45 |
| 25+ | $0.23 | $5.75 |
| 50+ | $0.21 | $10.50 |
| 100+ | $0.19 | $19.00 |
| N+ | $0.04 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | ETEK MICROELECTRONICS |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 17V |
| Voltage - Output (Min/Fixed) | 0.76V |
| Voltage - Output (Max) | 7V |
| Current - Output | 2A |
| Frequency - Switching | 580kHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SOT-23-6 |
| Supplier Device Package | SOT-23-6 |
| ROHS |  |
The ET8121 is a high-efficiency, synchronous Buck DC-DC converter designed for a wide range of applications. It accepts an input voltage from 4.5V to 17V and provides an adjustable output from 0.76V to 7V, delivering up to 2A of continuous current. Operating at a fixed 580kHz switching frequency, it allows for a compact solution using small external components. The device is available in a space-saving SOT-23-6 package, making it suitable for portable and space-limited designs.
- High Efficiency: Synchronous rectification reduces power loss, improving efficiency and extending battery life in portable applications.
- Wide Input Range: Supports 4.5V to 17V inputs, making it compatible with 5V and 12V system rails.
- Compact Solution: The 580kHz switching frequency enables the use of small inductors and capacitors, saving PCB area.
- Reliable Performance: Fixed frequency operation ensures predictable EMI and stable output regulation.
Battery-Powered Devices
Ideal for portable electronics where extending battery life is critical. The high efficiency of the ET8121 at 580kHz minimizes power loss, allowing devices like handheld scanners and portable instruments to run longer between charges.
Distributed Power Systems
Use the ET8121 to step down a 12V or 5V system rail to lower core voltages (e.g., 3.3V, 1.8V) for local power conversion. Its 4.5V to 17V input range makes it versatile for various intermediate bus voltages.
Networking Equipment
In routers and switches, the ET8121 provides a stable, low-ripple supply for processors and memory. The 580kHz frequency allows for smaller external components, saving valuable board space in dense networking hardware.
Industrial Sensors
For industrial control systems, the ET8121 converts a 12V or 24V supply down to sensor logic levels. Its 2A output capability can power multiple sensors or a single high-current actuator.
Set-Top Boxes and Consumer Electronics
Provides an efficient, cost-effective solution for generating core voltages in STBs, smart speakers, and other consumer devices. The SOT-23-6 package is ideal for space-constrained designs.
- Q: What type of converter is the ET8121?
- A: The ET8121 is a synchronous Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.5V to 17V.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 0.76V to 7V.
- Q: What is the maximum output current?
- A: The ET8121 can deliver up to 2A of continuous output current.
- Q: What is the switching frequency?
- A: It operates at a fixed switching frequency of 580kHz.
- Q: What package is available?
- A: The ET8121 is available in a compact SOT-23-6 package.
ET8121.pdf
- Q: What type of converter is the ET8121?
- A: The ET8121 is a synchronous Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.5V to 17V.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 0.76V to 7V.
- Q: What is the maximum output current?
- A: The ET8121 can deliver up to 2A of continuous output current.
- Q: What is the switching frequency?
- A: It operates at a fixed switching frequency of 580kHz.
- Q: What package is available?
- A: The ET8121 is available in a compact SOT-23-6 package.
