ETA1459

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DESCRIPTION

The ETA1459 is a wide input range, high-efficiency,

DC-to-DC step-down switching regulator, capable of

delivering up to 2.5A of output current. Its output can be

control allows the use of small external components, such

as ceramic input and output caps, as well as small

inductors, while still providing low output ripples. On top of

the integrated internal synchronous rectifier that

eliminates external Schottky diode, ETA1459 also employs a

proprietary control scheme that switches the device into a

power save mode during light load, thereby extending the

range of high efficiency operation. Therefore, ETA1459 is a

much superior solution in comparison to other

competitions in terms of efficiency and cost.

Cycle-by-cycle current limit provides output short-circuit

protection and an input OVP function guards ETA1459

against possible input voltage surge. Overall, ETA1459 is a

highly efficient and robust solution for DC-DC step-down

applications that requires wide input ranges.

ETA1459 is housed in an ESOP8 Package.

FEATURES





Wide Input Operating Range from 4.2V to 18V



High Efficiency:



Up to 90%at Light Load



Up to 95% at Heavy Load



Capable of Delivering 2.5A



Input OVP at 20V



No External Schottky Diode Needed



Thermal shutdown and UVLO

APPLICATIONS



Smart TVs, Smart Set Top Box



Tablet computer, MID

ORDERING INFORMATION

PART

PACKAGE PIN

TOP MARK

ETA1459

ESOP8

ETA1459

YWPPL

TYPICAL APPLICATION

EN

GND

BST

ETA1459

IN

SW

FB

SCL

10nF

5kΩ

20kΩ

1

3

8

4

5

6

2

22μF

22μF

X2

6.8μH

SDA

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