Global Mixed-mode Technology Inc.
G916
Layout Guide
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 rout-
ing wire. Figure 5 is adjustable mode of G916 PCB
layout.
An input capacitance of ≅ 1µF is required between the
G916 input pin and ground (the amount of the capaci-
tance may be increased without limit), This capacitor
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 rout-
ing wire. Otherwise, the actual voltage at the IN pin
may exceed the absolute maximum rating.
Safe Operating Area of IOUT=150mA
Safe Operating Area of IOUT=300mA
[Power Dissipation Limit]
[Power Dissipation Limit]
250
400
Still air
1oz copper on SOT-23-5 package
Mounted on recommended foorprint (RθJA=240°C/W)
350
300
250
200
150
100
50
TA = 55°C
200
TA = 85°C
TA = 25°C
TA = 25°C
TA = 55°C
150
100
TA = 85°C
Still Air
50
0
1oz copper on SOT-23-5 Package
Mounted on recommended foorprint (RθJA=240°C/W)
0
0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3
Input-Output Voltage Differential VIN-VOUT (V)
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2
Input-Output Voltage Differential VIN-VOUT (V)
Note: VIN(max) <= 5.5V
Note: VIN (max) <= 5.5V
Figure 3a. Safe Operating Area (IOUT=150mA)
Figure 3b. Safe Operating Area (IOUT=300mA)
Maximum Power Dissipation of SOT-23-5
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Still air
1oz copper on SOT-23-5 package
Mounted on recommended foorprint (RθJA=240°C/W)
25
35
45
55
65
75
85
95 105 115 125
*Distance between pin & capacitor must no more than 1cm
Amibent Temperature TA (°C)
Figure 5. Adjustable Mode
Figure 4. Power Dissipation vs. Ambient Temperature
Recommend Minimum Footprint
TSOT-23-5、SOT-23-5
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
Jan 25, 2006
11
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
