Datasheet > ETA3515

ETA3515

更新时间： 2024-09-18 17:01:31

品牌	Logo	应用领域
钰泰 - ETA		/
页数	文件大小	规格书
10页	943K
描述
5.5V/3A Sync. Buck

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ETA3515 数据手册

ETA3515

2MHz, 3A, COT Synchronous Step-down Converter in SOT563

DESCRIPTION

FEATURES

The ETA3515 is a high-efficiency, DC-to-DC step-down

switching regulator, capable of delivering up to 3A of output

current. The device operates from an input voltage range of

2.5V to 5.5V and provides output voltages from 0.6V to V_IN,

making the ETA3515 ideal for low voltage power

conversions. ETA3515 adopts an adaptive COT control

scheme that enables very fast transient response and

provides a very smooth transition when the output varies

from light load to heavy load. During light load, ETA3515

goes into a PFM mode that saves switching loss to achieve

a high efficiency. The adaptive COT control also maintains a

constant switching frequency across line and load. Running

at a fixed frequency of 2MHz allows the use of small

inductance value and low DCR inductors, thereby achieving

a higher efficiency. 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. Internal soft-start control circuitry

reduces inrush current. Short-circuit and thermal-overload

protection improves design reliability.



Up to 96% Efficiency

Up to 3A Max Output Current

Adaptive COT Control

Ultra-fast Load Transient Response

Output Discharge

2MHz Switching Frequency

High Efficiency PFM Mode at Light Load

50uA Quiescent Current

1% Feedback Accuracy

Adjustable Output Voltage from 0.6V

Cycle-by-cycle Over Current Protection

Short Circuit Protection with Hiccup Mode

Stable with Low-ESR Output Ceramic

Capacitors



Available in SOT563 Package

RoHS Compliant

APPLICATIONS



LCD TV

Set Top Box

IP Camera

ETA3515 is available in a tiny SOT563 package.

TYPICAL APPLICATION

1uH

VIN

VOUT

OUT

22pF

10uF

ETA3515

Enable

R1+R2

GND

VOUT =

0.6(V)

PART No.

PACKAGE

TOP MARK

Pcs/Reel

ORDERING INFORMATION

ETA3515FSG

SOT563

MqYW

5000

www.etasolution.com

ETA3515 Rev 1.1

Empower, Transcend, Achieve!

12 3 4 5 6 7...10

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