Datasheet > A7404E6VR

A7404E6VR

更新时间： 2024-11-27 01:15:03

品牌	Logo	应用领域
创瑞 - AITSEMI		DC-DC转换器
页数	文件大小	规格书
9页	467K
描述
DC-DC CONVERTER/BUCK STEP-DOWN CONVERTER

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A7404E6VR 数据手册

A7404

DC-DC CONVERTER/BUCK (STEP-DOWN)

AiT Semiconductor Inc.

www.ait-ic.com

42V INPUT STANDOFF VOLTAGE, 0.4A STEP-DOWN CONVERTER

DESCRIPTION

FEATURES

The A7404 is a wide input range, high-efficiency, and

high frequency DC-to-DC step-down switching

regulator, capable of delivering up to 0.4A of output

current. With a fixed switching frequency of 750kHz,

this current mode PWM controlled converter allows

the use of small external components, such as

ceramic input and output caps, as well as small

inductors. A7404 also employs a proprietary control

scheme that switches the device into a power save

mode during light load, thereby extending the range

of high efficiency operation. An OVP function protects

the IC itself and its downstream system against input

voltage surges. With this OVP function, the IC can

stand off input voltage as high as 42V, making it an

ideal solution for industrial applications such as smart

meters as well as automotive applications.

In automotive systems, power comes from the

battery, with its voltage typically between 9V and 24V.

Including cold crank and double battery jump-starts,

the minimum input voltage may be as low as 4V and

the maximum up to 36V, with even higher transient

voltages. With these high input voltages, linear

regulators cannot be used for high supply currents

without overheating the regulator. Instead, high

efficiency switching regulators such as A7404 must

be used to minimize thermal dissipation.



Wide Input Operating Range from 4V to 38V

Standoff Input Voltage: 42V

High Efficiency at 20V In 12V Out Up to 95%

High Efficiency PFM mode at light load

Capable of Delivering 0.4A of output current.

No External Compensation Needed

Current Mode control

Logic Control Shutdown

Thermal shutdown and UVLO

Available in SOT-26 Package

APPLICATION



Smart Meters

Industrial Applications

Automotive Applications

TYPICAL APPLICATION

The A7404 is available in SOT-26 package.

ORDERING INFORMATION

Package Type

SOT-26

Part Number

A7404E6R

A7404E6VR

V: Halogen free Package

R: Tape & Reel

Note

AiT provides all RoHS products

Suffix ꢀ V ꢀ means Halogen free Package

REV1.0

- DEC 2015 RELEASED -

- 1 -

12 3 4 5 6 7...9

中文翻译

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