ETA1168

www.ETAsolution.com

Outperform with Efficiency

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1

40V Step-Up Regulator for White LED Driver with PWM Dimming

DESCRIPTION

The ETA1168 is a high efficiency step-up converter with an

internally integrated 40V power MOSEFT. It runs with a

optimal 600KHz frequency that enables the use of small

external components while still providing the best

efficiency. It can drive up to 10 to 12 LEDs in series and also

in parallel combinations. The incorporated true

PWM-Diming feature through CTRL pin does not generate

audible noise on the output capacitor during diming

because it does not burst the LED current. For maximum

protection, the ETA1168 has an OVP protection feature that

prevents the output voltage exceeding the maximum rating

of the ETA1168 and the output cap during open-LED

conditions.

ETA1168 is available in a space-saving DFN22-6 package.

FEATURES



Up to 92% Efficiency



40V OVP protection



True PWM Brightness Control



200mV Feedback Voltage



DFN2x2-6 Package

APPLICATIONS



LED Backlighting for Tablets, MIDs and Smartphones



LED Driver

ORDERING INFORMATION

PART #

PACKAGE PIN

TOP MARK

ETA1168D2G-T

DFN2x2-6

DGYW

Date Code

Product Number

TYPICAL APPLICATION

Dimming Control

CTRL

G

FB

SW

ETA1168

2.7V to 6V

1μF

22μH

3

2

4

1

38V OVP

1μF

IN

6

5

COMP

10nF

have least influence to the RF system

70%

72%

74%

76%

78%

80%

82%

84%

86%

88%

90%

1

10

100

ETA1168

TPS61160

VIN=3.6V

10 LEDs

Same Board, same everything else, ETA1168 beats TI’s

TPS61160 in Efficiency handily across the board