ETA3406 ETA | Alldatasheet
Document overview
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Technical content
www.ETAsolution.com Outperform with Efficiency Proprietary Information DO NOT Distribute 1 1.5MHz 1.2A Step-Down Converter in SOT23-5 Package
DESCRIPTION
The ETA3406 is a high -efficiency, DC -to-DC step -down switching regulator, capable of delivering up to 1.2A of output current. The devices operate from an input voltage range of 2.6V to 5.5V and provide output voltages from 0.6V to VIN, making the ETA3406 ideal for lo w voltage power conversions. Running at a fixed frequency of 1.5MHz allows the use of small inductance value and low DCR inductors, thereby achieving higher efficiencies. Other external components, such as ceramic input and output caps, can also be small d ue to higher switching frequency, while maintaining exceptional low noise output voltages. Built-in EMI reduction circuitry makes this converter ideal power supply for RF applications. Internal soft -start control circuitry reduces inrush current. Short -circuit and thermal-overload protection improves design reliability. ETA3406 is housed in a tiny SOT23-5L package
FEATURES
Up to 1.2A Max Output Current 1.5MHz Frequency Light Load operation Internal Compensation Tiny SOT23-5L Package
APPLICATIONS
USB ports/Hubs Hot Swaps Cellphones Tablet PC Set Top Boxes
ORDERING INFORMATION
1.8V/1.2A VIN 2.6V to 5.5V 2.2μH 100K 50K 1.8V/1.2A 1.5MHz Step-Down Converter EN 10μF 10μF 22pF Optional 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100% 0.01 0.1 1 ŋ IOUT (A) Efficiency Vs IOUT VIN=2.7V VIN=3.6V VIN=5VVOUT=1.8V