ETA1165

www.ETAsolution.com

Outperform with Efficiency

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1

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

DESCRIPTION

The ETA1165 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 ETA1165 has an OVP protection feature that

prevents the output voltage exceeding the maximum rating

of the ETA1165 and the output cap during open-LED

conditions.

ETA1165 is available in a space-saving SOT23-6 package.

FEATURES



Up to 92% Efficiency



40V OVP protection



True PWM Brightness Control



200mV Feedback Voltage



SOT23-6 Package

APPLICATIONS



LED Backlighting for Tablets, MIDs and Smartphones



LED Driver

ORDERING INFORMATION

PART #

PACKAGE PIN

TOP MARK

ETA1165S2G-T

SOT23-6

DQYW

Date Code

Product Number

TYPICAL APPLICATION

Dimming Control

CTRL

G

FB

SW

ETA1165

2.7V to 6V

4.7μF

22μH

4

5

3

6

38V OVP

1μF

IN

1

2

COMP

70%

72%

74%

76%

78%

80%

82%

84%

86%

88%

90%

1

10

100

ETA1165

TPS61160

VIN=3.6V

10 LEDs