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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 3A
Frequency - Switching 580kHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case SOT-23-6
Supplier Device Package SOT-23-6
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ET8131 is a high-performance synchronous Buck DC-DC converter that delivers up to 3A of output current. It accepts a wide input voltage from 4.5V to 17V and provides an adjustable output from 0.76V to 7V. With a fixed 580kHz switching frequency, it offers an excellent balance between efficiency and external component size. Housed in a compact SOT-23-6 package, the ET8131 is ideal for space-constrained applications requiring higher load currents.

  • 3A Output Capability: Supports higher current loads compared to standard 2A converters, expanding application possibilities.
  • High Efficiency: Synchronous design minimizes power dissipation, improving thermal performance in compact designs.
  • Stable Operation: Fixed 580kHz frequency provides predictable EMI and consistent performance across load conditions.
  • Small Footprint: SOT-23-6 package enables dense PCB layouts for portable and embedded systems.

High-Performance Portable Devices

For devices requiring higher current, the ET8131 delivers up to 3A from a 5V or 12V input. This makes it suitable for powering application processors, FPGAs, and high-power wireless modules in portable equipment.

Point-of-Load (POL) Regulation

In multi-rail systems, the ET8131 can efficiently step down a 12V bus to a lower voltage for local loads. Its 580kHz frequency allows for a compact POL design with minimal external components.

Gaming and Computing Peripherals

Power hungry peripherals like gaming consoles, external GPUs, and high-speed SSDs benefit from the ET8131's 3A capability and high efficiency, reducing thermal stress in enclosed spaces.

Smart Home Hubs

Smart home devices with multiple radios and sensors require stable power. The ET8131 provides a clean, efficient supply from a 12V adapter, ensuring reliable operation of Zigbee, Wi-Fi, and Thread modules.

Test and Measurement Equipment

In bench instruments, the ET8131 offers precise voltage regulation for analog and digital circuits. The low output ripple at 580kHz helps maintain signal integrity in sensitive measurements.

Q: What type of converter is the ET8131?
A: The ET8131 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 ET8131 can deliver up to 3A 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 ET8131 is available in a compact SOT-23-6 package.
Base Product Number : ET8131
3A 4.5V-17V 580kHz Buck DC-DC Converter High-Current POL Portable SOT-23-6 Step-Down
Q: What type of converter is the ET8131?
A: The ET8131 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 ET8131 can deliver up to 3A 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 ET8131 is available in a compact SOT-23-6 package.