ETA3452

www.etasolution.com

1

Powering Minds of the Smart

6V/3A, Fast Response, Adaptive COT Step-Down Converter in SOT23-6

DESCRIPTION

FEATURES

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.



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

PACKAGE PIN

TOP MARK

ETA3452S2G

SOT23-6

FLYW

FL: Product Code

YW: Date Code

TYPICAL APPLICATION

VOUT 1.2V

VIN 2.6V to 5.5V

1uH

ETA3452

22uF

400K

240K

22uF

VIN

EN

GND

FB

SW

VOS

100pF

Typical Application Circuit of 1.2V Output