Datasheet > ETA3457

ETA3457

更新时间： 2024-04-09 19:00:54

品牌	Logo	应用领域
钰泰 - ETA		/
页数	文件大小	规格书
9页	596K
描述
5.5V/2.5A Sync. Buck

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ETA3457 数据手册

ETA-M-3457FSM

2MHz, 2.5A, DC/DC Step-Down Power Module with Integrated Inductor

DESCRIPTION

FEATURES

The ETA-M-3457FSM is a high-density power module for

space sensitive applications.It is a very compact solution

to offer 2.5A of continuous output current. The module

operates from an input voltage range of 2.5V to 5.5V and

provides output voltages from 0.6V to VIN, making the

ETA-M-3457FSM ideal for low voltage power

conversions. ETA-M-3457FSM adopts an adaptive COT

control scheme that enables a very fast transient

response and provides a very smooth transition when

the output varies from light load to heavy load. During

light load, ETA-M-3457FSM goes into a PFM mode that

saves switching loss, achieving high efficiency. The

adaptive COT control also maintains a constant

switching frequency across line and load.



Integrated Controller, Switches, Inductor

Up to 2.5A Max Output Current

Adaptive COT Control

Ultra-fast Load Transient Response

Low Radiated Emissions(EMI) Complies with

EN55022 Class B standard



2MHz Frequency

High Efficiency PFM Mode at Light Load

50uA Quiescent Current

1% Feedback Accuracy

Adjustable Output from 0.6V

Cycle-by-cycle Over Current Protection

Short Circuit Protection with Hiccup Mode

Stable with Low-ESR Output Ceramic Capacitors

Only 4 External Components Needed: 2 Ceramic

Capacitors and FB Divider Resistors

Available in QFN-12 Package

The ETA-M-3457FSM offers standard features: internal

soft-start control circuitry reduces inrush current. Short-

circuit and thermal-overload protection improves design

reliability.



The ETA-M-3457FSM integrates an inductor, power

switches and a switching controller, running at a fixed

frequency of 2MHz allows the use of small capacitors,

thereby this compact solution is ideal for space sensitive

systems.

APPLICATIONS



Portable Products

Space-Limited Applications

Storage (SSD/HDD)

ETA-M-3457FSM is available in a QFN-12 package.

TYPICAL APPLICATION

VIN

OUT

VIN

VOUT

47pF

optional

22uF

ETA3457

GNDGNDGND

R1+R2

x 0.6(V)

Vout=

PART No.

PACKAGE

TOP MARK

Pcs/Reel

ORDERING INFORMATION

ETA-M-3457FSM QFN-12

ETA3457

5000

YWW2L

www.etasolution.com

Empower, Transcend, Achieve!

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