RT8253BH 查看數據表（PDF） - Richtek Technology

零件编号

产品描述 (功能)

生产厂家

RT8253BH

3A, 23V, 1.2MHz Synchronous Step-Down Converter

Richtek Technology 

RT8253B

Parameter

EN Threshold Logic-High

Voltage

Logic-Low

Input Under Voltage Lockout

Threshold

Input Under Voltage Lockout

Hysteresis

Soft-Start Current

Soft-Start Period

Thermal Shutdown

Symbol

VIH

VIL

Test Conditions

VIN Rising

VSS = 0V

CSS = 0.1μF

TSD

Min Typ Max Unit

2.7

--

5.5

V

--

--

0.4

3.8 4.2 4.5

V

--

320

--

mV

--

6

--

μA

-- 13.5 --

ms

--

150

--

°C

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. θJA is measured in natural convection at TA = 25°C on a high effective thermal conductivity four-layer test board of

JEDEC 51-7 thermal measurement standard. The measurement case position of θJC is on the expose pad for

SOP-8 (Exposed Pad) package.

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

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

DS8253B-02 March 2011

www.richtek.com

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