ETA3409 datasheet(1/1 Pages) ETA

Part #	ETA3409

Description	3MHz 1.5A/2A High 흯 Step-Down Converter in SOT23-5 Package

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Manufacturer	ETA [ETA SOLUTIONS CO. LIMITED]

Direct Link	http://www.etasolution.com

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ETA3409

www.ETAsolution.com

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3MHz 1.5A/2A High ŋ Step-Down Converter in SOT23-5 Package

DESCRIPTION

The ETA3409 is a high-efficiency, DC-to-DC step-down

switching regulator, capable of delivering up to 1.5A/2A of

output current. The devices operate from an input voltage

range of 2.6V to 5.5V and provide output voltages from 0.6V

to VIN, making the ETA3409 ideal for low voltage power

conversions. Running ata fixed frequency of 3MHz allows the

use of small inductance value and low DCR inductors,

thereby achieving higher efficiencies. Other external

components, such as ceramic input and output caps, can

also be small due to higher switching frequency, while

maintaining exceptional low noise output voltages. Built-in

EMI reduction circuitry makes this converter ideal power

supply for RF applications. Internal soft-start control

circuitry reduces inrush current. Short-circuitand thermal-

overload protection improves design reliability.

ETA3409 is housed in a tiny SOT23-5L package

FEATURES



ŋ up to 96%



Up to 2A Max output current for ETA3409



3MHz Frequency



Internal Compensation



Clock Dithering



Tiny SOT23-5 Package

APPLICATIONS



USB ports/Hubs



Portable Devices



Cellphones



Tablet PC



Set Top Boxes

ORDERING INFORMATION

PART

PACKAGE PIN

TOP MARK

ETA3409S2F-T SOT23-5

CYYW

Date Code

Product Number

TYPICAL APPLICATION

GND

FB

IN

SW

VOUT

1.8V/2A

VIN 2.6V to 5.5V

1μH

120K

60K

EN

10μF

4

1

3

5

2

0

10

20

30

40

50

60

70

80

90

100

10

100

1000

IOUT (mA)

Efficiency Vs IOUT

Vin=4V

Vin=4.2V

Vin=5V

VOUT=3.3V

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ETA3409 Datasheet(PDF) 1 Page - ETA SOLUTIONS CO. LIMITED

ETA3409 Datasheet(HTML) 1 Page - ETA SOLUTIONS CO. LIMITED

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