G914A(2002) 데이터 시트보기 (PDF) - Global Mixed-mode Technology Inc
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G914A Datasheet PDF : 10 Pages
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Global Mixed-mode Technology Inc.
G914X
Layout Guide
An input capacitance of ≅ 1µF is required between the
G914X 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.
Input capacitor can filter 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
routing 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 1cm from output to a clean analog
ground. Because 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
routing wire. Figure 5 is G914X PCB recommended
layout.
Figure 2. Recommended Minimum Footprint
Safe Operating Area [Power Dissipation Limit]
400
350 Maximum Recommended Output Current
Still air
300
250
200
TA=85°C
150
TA=55°C
TA=25°C
100
1oz Copper on SOT-23-5 Package
50
Mounted on recommended mimimum
footprint (RJA=240°C/W)
0
0.1
0.4
0.7
1.0
1.3
1.6
1.9
2.2
Input-Output Voltage Differential VIN-VOUT (V)
Note: VIN(max) <= 5.5V
Figure 3. Safe Operating Area
Maximum Power Dissipation of SOT-23-5
0.7
Still Air
0.6 1oz Copper on SOT-23-5 Package
Mounted on recommended mimimum footprint (RθJA=240°C/W)
0.5
0.4
0.3
0.2
0.1
0
25 35 45 55 65 75 85 95 105 115 125
Amibent Temperature TA (°C)
Figure 4. Power Dissipation vs. Temperature
Figure 4 Safe Operating Area
Figure 5. Fixed Mode
*Distance between pin & capacitor must no more than 1cm
Ver: 1.2
Jun 30, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
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