SS8047 datasheet(2/11 Pages) SSC

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Rev.2.02 7/06/2004

SS8047

Absolute Maximum Ratings

(Note 1)

Input Voltage…………………………………....................................................................…..…..…7V

Power Dissipation Internally Limited

(Note 2)

Maximum Junction Temperature…..……………............................................................…….…..150°C

Storage Temperature Range….……......................................................................................…..-65°C

≤ T

≤+150°C

Lead Temperature, Time for Wave Soldering

TO 220 Package………………………….........................................................................…………260°C, 10s

TO 252, TO 263, SOT 223 Package…………......................................................................…...260°C, 4s

Continuous Power Dissipation (TA = + 25°C)

SOT 223

(1) ………………………................................................................…….….……….………..0.8W

TO 252

(1) ………..……………................................................................……….……….….………..1.0W

TO 263

(1) ………..……………….………................................................................…….….………..1.6W

Note

(1): See Recommended Minimum Footprint.

Operating Conditions

(Note 1)

Input Voltage…………………………….....................................................................…………….3.3V~6V

Temperature Range………………...............................................................................…………0°C

≤ T

≤125°C

Electrical Characteristics

VIN =5V, IO = 1A, CIN = 1µF, COUT =10 µF, All specifications apply for TA = TJ = 25°C. [Note 3]

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN = 5V, 10mA < IO < 1A

Output Voltage

VIN = 3.3V, 10mA < IO < 500mA

2.475

2.50

2.575

Line Regulation

3.3V < VIN < 6V, IO = 10mA

VIN = 5V, 10mA < IO < 1A

Load Regulation

VIN = 3.3V, 10mA < IO < 500mA

Output Impedance

200mA DC and 100mA AC, fo = 120Hz

Ω

Quiescent Current

VIN = 5V

0.6

Ripple Rejection

fi = 120Hz,Vripple =2VP-P, Io = 100mA

IO = 1A

1.15

IO = 500mA

420

Dropout Voltage

IO = 100mA

200

Short Circuit Current

1.6

Over Temperature

150

°C

Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Con-

ditions are conditions under which the device functions but the specifications might not be guaranteed.

For guaranteed specifications and test conditions see the Electrical Characteristics.

Note 2: The maximum power dissipation is a function of the maximum junction temperature, TJmax ; total thermal

resistance,

JA, and ambient temperature TA. The maximum allowable power dissipation at any ambient

temperature is Tjmax-TA /

JA. If this dissipation is exceeded, the die temperature will rise above 150°C

and IC will go into thermal shutdown. For the SS8047 in SOT 223 package,

JA is 156°C/W; in TO 263

package,

JA is 75°C/W, and in the TO 252 package,

JA is 125°C/W (See recommend minimum foot-

print). The safe operation in SOT 223,TO 252 & TO 263 package, it can see “Typical Performance

Characteristics” (Safe Operating Area).

Note3: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient

as possible.

Note4: The type of output capacitor should be tantalum or aluminum.

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