Datasheet > RT7257EN

RT7257EN

更新时间： 2022-06-24 15:44:50

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
15页	225K
描述
3A, 17V, 340kHz Synchronous Step-Down Converter

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数据手册

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RT7257EN 数据手册

Preliminary

RT7257E

Parameter

Symbol

Test Conditions

Min

Typ

Max

5.5

0.4

4.5

Unit

Logic-High

Logic-Low

EN Input Threshold

Voltage

Input Under Voltage Lockout Threshold

Rising

3.8

4.2

320

UVLO

Input Under Voltage Lockout Hysteresis ΔV

μA

°C

UVLO

Soft-Start Current

Soft-Start Period

Thermal Shutdown

= 0V

= 0.1μF

13.5

150

Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for

stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the

operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended

periods may remain possibility to affect device reliability.

Note 2. θ_JAis measured in natural convection at T_A= 25°C on a high effective thermal conductivity four-layer test board of

JEDEC 51-7 thermal measurement standard. The measurement case position of θ_JCis on the exposed pad of the

package.

Note 3. Devices are ESD sensitive. Handling precaution is recommended.

Note 4. The device is not guaranteed to function outside its operating conditions.

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