SS8014-18GTR SSC [Silicon Standard Corp.], SS8014-18GTR Datasheet - Page 9

• Manufacturer Part Number: SS8014-18GTR
• Description: 300mA Low-Noise LDO Regulators
• Manufacturer: SSC [Silicon Standard Corp.]

1/12/2005 Rev.2.10
Layout Guide
An input capacitance of ~1µF is required between the
SS8014 input pin and ground (the amount of the ca-
pacitance may be increased without limit), This ca-
pacitor must be located a distance of not more than
1cm from the input and return to a clean analog
ground.
The input capacitor filters out the input voltage spike
caused by the surge current due to the inductive effect
of the package pin and the printed circuit board’s rout-
Note: V
400
350
300
250
200
150
100
50
0
0.1
Safe Operating Area [Power Dissipation Limit]
Maximum Recommended Output Current
I N
1oz Copper on SOT-23-5 Package
Mounted on recommended mimimum
footprint (R
(max) <= 5.5V
Input-Output Voltage Differential VIN-VOUT (V)
0.4
Figure 3. Safe Operating Area
JA
T
=240°C/W)
A
0.7
=85 ° C
T
1.0
A
=55 ° C
1.3
T
A
=25 ° C
1.6
www.SiliconStandard.com
Still air
Figure 2. Recommended Minimum Footprint
1.9
*Distance between pin & capacitor must be no more than 1cm
2.2
Figure 4 Safe Operating Area
Figure 5. Fixed Mode
ing wire. Otherwise, the actual voltage at the IN pin
may exceed the absolute maximum rating.
The output capacitor also must be located a distance
of not more than 1c m from output to a clean analog
ground, so that it can filter out the output spike
caused by the surge current due to the inductive effect
of the package pin and the printed circuit board’s rout-
ing wire. Figure 5 is the SS8014 PCB recommended
layout.
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Figure 4. Power Dissipation vs. Temperature
25
Still Air
1oz Copper on SOT-23-5 Package
Mounted on recommended mimimum footprint (R
Maximum Power Dissipation of SOT-23-5
35
45
Amibent Temperature T
55
65
75
85
A
( °C)
95
? JA
SS8014-xxG
=240°C/W)
105
115
125
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