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ETA3452 Datasheet

Part Number ETA3452
Manufacturers ETA
Logo ETA
Description Adaptive COT Step-Down Converter
Datasheet ETA3452 DatasheetETA3452 Datasheet (PDF)

ETA3452 6V/3A, Fast Response, Adaptive COT Step-Down Converter in SOT23-6 DESCRIPTION ETA3452 belongs to a new breed of high frequency synchronous Step-Down converters that combines the advantages of voltage mode control and Constant-On-Time control. Its adaptive Constant-On-Time control dynamically changes switch on time to achieve a constant switching frequency. It does not have the minimum on-time constrain normally a fixed-frequency current mode Step-down requires, allowing it to go down to.

  ETA3452   ETA3452






Adaptive COT Step-Down Converter

ETA3452 6V/3A, Fast Response, Adaptive COT Step-Down Converter in SOT23-6 DESCRIPTION ETA3452 belongs to a new breed of high frequency synchronous Step-Down converters that combines the advantages of voltage mode control and Constant-On-Time control. Its adaptive Constant-On-Time control dynamically changes switch on time to achieve a constant switching frequency. It does not have the minimum on-time constrain normally a fixed-frequency current mode Step-down requires, allowing it to go down to very low duty ratio without affecting loop stability. The voltage mode nature of ETA3452 also provides more superior load transient response and a seamless transition from PFM to PWM modes. ETA3452 is capable of supplying output with current up to 3A at 1.2V output. All these features make ETA3452 an excellent choice for ARM based CPU power supply. ETA3452 is in a SOT23-6 package. FEATURES  Adaptive COT control  Up to 95% Efficiency  Up to 91% Efficiency for low output voltage  Up to 3A Max Output current  Feedback voltage 0.45V  Excellent load transient response  SOT23-6 Package APPLICATIONS  ARM based CPUs  Tablet, MID  Smart Phone  Smart Set-Top Box, OTT ORDERING INFORMATION PART ETA3452S2G PACKAGE PIN SOT23-6 TOP MARK FLYW FL: Product Code YW: Date Code TYPICAL APPLICATION VIN 2.6V to 5.5V 22uF VIN SW EN ETA3452 VOS FB GND 1uH VOUT 1.2V 400K 100pF 240K 22uF Typical Application Circuit of 1.2V Output www.etasolution.com 1 Powering Minds of the Smart ET.


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