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ETA1466: High-Efficiency Wide Input Range DC/DC Step-Down Converter


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Introducing the ETA1466 DC-DC step down regulator

The ETA1466 is a high-efficiency and high-frequency DC-to-DC step-down switching regulator that can deliver up to 2A of output current. It has a wide input range of up to 18V and is capable of providing very fast transient response and a smooth transition when the output varies from light load to heavy load. The ETA1466 adopts an Adaptive COT control scheme that enables very fast transient response and provides a very smooth transition when the output varies from light load to heavy load.


The ETA1466 has several advantages such as high efficiency, low power consumption, small size, and low cost. It has an efficiency of up to 95% which makes it ideal for use in battery-powered systems where power consumption is critical. The ETA1466 also has a small size which makes it easy to integrate into various applications. It is available in a SOT23-6 package which has a small footprint of only 2.9mm x 2.8mm x 1.0mm.


Another advantage of the ETA1466 is its wide input range. It can handle input voltages ranging from 4.5V to 18V, making it an ideal solution for industrial applications such as LCD TV, Set Top Box, Portable TV, etc.


The ETA1466 is also very easy to use. To adjust the output voltage, a resistor divider is used as is common practice. Additionally, 4 capacitors are recommended. Due to the small SOT23-6 package, very space-saving designs are possible.


The ETA1466 is suitable for use in various applications such as automotive, industrial, and consumer electronics. It can be used in applications such as power supplies for microprocessors, FPGAs, DSPs, and other digital circuits. It can also be used in battery-powered systems such as portable instruments, wireless communication devices, and other battery-powered equipment.


In terms of specifications, the ETA1466 operates with a switching frequency of 700kHz and requires an inductance of 2.2µH. Depending on the input voltage, the efficiency of the converter reaches its maximum between 500mA and 1A. At VIN=5V, more than 95% is reached (VOUT=3.3V). However, due to its PFM mode, the efficiency is still above 80% even at light loads (>20mA). An overvoltage protection (OVP), a “hiccup” mode for restart in case of under voltage, and an automatic shutdown in case of over-temperature are integrated. The controller can be switched on and off via the enable pin.


The specifications of the ETA1466 are as follows:

Input voltage range: 4.5V to 18V

Output voltage range: 0.8V to VIN

Maximum output current: 2A

Efficiency: up to 95%

Operating temperature range: -40°C to +85°C

Package: SOT23-612.


Overall, the ETA1466 is a high-efficiency, wide input range, and easy-to-use synchronous DC/DC step-down converter that is suitable for a wide range of applications in the industry, consumer devices, or battery-powered devices powered by multiple cells.


If you would like more information about the ETA1466 or would like to request samples and pricing information, you can contact Ineltek directly here.


Download ETA1466 Data Sheet

Download the ETA1466 Step Down Converter Data Sheet

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