ss8046 Silicon Standard Corporation, ss8046 Datasheet - Page 3

• Manufacturer Part Number: ss8046
• Description: Dropout-voltage 0.5v @ I O = 2a Output Current In Excess Of 2a Output Voltage Accuracy ?2.5% Quiescent Current Typically 5ma Internal Short-circuit Current Limit Internal Over-temperature Protection To-220 4pin Full-mold Package On/off Control
• Manufacturer: Silicon Standard Corporation

Rev.2.01 6/06/2003
Electrical Characteristics
V
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Ripple Rejection
Dropout Voltage
Short Circuit Current
Over Temperature
Disable Voltage High
Disable Voltage Low
Disable Bias Current High
Disable Bias Current Low
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Con-
Note 2: The maximum power dissipation is a function of the maximum junction temperature, T
Note3: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient
Note4: The output capacitor should be a tantalum or aluminum type.
Definitions
Dropout Voltage
The input/output voltage differential at which the regu-
lator output no longer maintains regulation against
further reductions in input voltage. Measured when the
output drops 2% below its nominal value, dropout volt-
age is affected by junction temperature, load current
and minimum input supply requirements.
Line Regulation
The change in output voltage for a change in input
voltage. The measurement is made under conditions
of low dissipation or by using pulse techniques such
that average chip temperature is not significantly a f-
fected.
IN
=5V, I
PARAMETER
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.
resistance,
temperature is T
and the device will go into thermal shutdown. For the TO 220 package,
as possible.
O
= 0.5A, C
IN
JA
, and ambient temperature T
= 4.7µF, C
jmax
SYMBOL
-T
V
V
I
I
disH
disL
disH
disL
A
/
JA
OUT
. If this dissipation is exceeded, the die temperature will rise above 150°C
I
4V < V
50mA < I
V
fi = 120Hz, 1VP-P, I
I
Output Active
Output Disabled
V
V
O
O
www.SiliconStandard.com
=47µF, T
IN
dis
dis
=0.5A
= 2A
= 5V
= 2.7V
= 0.4V
IN
O
< 7V, I
< 2A
A
= T
CONDITIONS
O
= 10mA
A
J
. The maximum allowable power dissipation at any ambient
O
= 25°C unless otherwise specified [Note 3]
= 100mA
Load Regulation
The change in output voltage for a change in load cur-
rent at constant chip temperature. The measurement
is made under conditions of low dissipation or by u s-
ing pulse techniques such that average chip tempera-
ture is not significantly affected.
Maximum Power Dissipation
The maximum total device dissipation for which the
regulator will operate within specifications.
Quiescent Bias Current
Current which is used to operate the regulator chip
and is not delivered to the load.
MIN
3.22
2.0
JA
is 60°C/W (No heat sink).
TYP
150
3.3
0.5
0.5
3.8
45
5
Jmax
MAX
3.38
0.5
0.8
10
20
20
2
2
, total thermal
SS8046
UNITS
mA
µA
µA
dB
%
%
°C
V
V
A
V
V
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