Datasheet > ADT7221

ADT7221

更新时间： 2022-10-09 10:37:42

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描述
power supply chip with 5V regulated output

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ADT7221 数据手册

ADT7221

Absolute Maximum Ratings

Parameter

Power supply voltage

Symbol

V_IN

Min.

Typ.

Max.

Unit

Power dissipation (Ta=70℃) (Note1)

Storage temperature

P_Dmax

T_STG

T_Jmax

Θ_JA

265

+150

℃

-65

Junction temperature

℃

Thermal resistance

301.2

℃/W

Note1. derate 301℃/W above +70℃.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.

These are stress ratings only, and 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 affect device reliability.

Operating Ratings

Parameter

Power supply voltage^*2

Symbol

V_IN

Min.

7.0

-20

Typ.

Max.

15.0

+85

Unit

12.0

Operating temperature

T_OPR

T_J

℃

Junction temperature

+125

180

Max. power dissipation (Ta=70℃)^*1

P_D

*1 This spec. indicates that junction temperature of the device is under 125℃. In specific applications ,

this is recommended under this power dissipation specification.

*2 Maximum V_INoperating range can be extended. In this case, maximum drive current is limited.

For using V_INover 15V, refer to the Table B.

Table B : Maximum drive current as maximum V_INoperating voltage.

V_IN(V)

Drive current (㎃)

330

310

290

270

250

230

210

Electrical Characteristics (Ta=25℃, VIN=12V, unless otherwise noted)

Parameter

Condition

Min.

Typ.

Max.

Unit

Note

I_O=0mA

Supply current, operating

I_O=300mA

PWM controller

Efficiency

I_O=300mA

Oscillator frequency

350

500

625

kHz

I_O=300mA

Output voltage

5.25

5.5

5.75

(measured at FB pin voltage)

LDO

Output voltage

Output drive current

Load regulation

Line regulation

I_O=300mA

4.75

5.0

300

150

5.25

350

I_O=0 to 350mA

V_IN=7V to 15V, I_O=350mA

* This specifications are subject to be changed without notice

http://www.ad-tech.co.kr

Jun. 16. 2008 / Rev. 0.1

4/6

1 2 345 6

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