ETA3452中文资料钰泰半导体数据手册PDF规格书

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