ETA ETA8111
ETA8111 is a wide input range, high-efficiency and high- frequency DC-to-DC step-down switching regulator, capable of delivering up to 2A output current. It 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 adaptive COT control also maintains a constant switching frequency across line and load.DESCRIPTION
FEATURES
ETA8111 is a wide input range, high-efficiency and high-● frequency DC-to-DC step-down switching regulator,
● capable of delivering up to 2A output current. It 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
● adaptive COT control also maintains a constant
● switching frequency across line and load.
● ETA8111 is available in SOT23-6 package.
●
APPLICATIONS
●● LCD TV
● Set Top Box
●
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● IP CAM Wide Input Voltage Range: 3.5V-18V Adaptive COT Control Forced PWM Mode Capable of Delivering 2A Output Ultra-fast Load Transient Response High Efficiency Synchronous Operation Low Rdson Internal Power FETs No External Compensation Needed Thermal Shutdown and UVLO Available in SOT23-6 Package RoHS Compliant TYPICAL APPLICATION 10nF VIN 12V 10uF EN 5 IN 1 BST SW 6 ETA8111 4 EN FB 3 GND 2 * R2 has to be between 1KOhm to 70KOhm 2.2uH R1 110K 47pF Optional VOUT 5V 22uF R2 15K Vout= R1+R2 x0.6(V) R2 ORDERING INFORMATION PART No.