STW41411/T ST-Ericsson Inc, STW41411/T Datasheet - Page 25
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STW41411/T
Manufacturer Part Number
STW41411/T
Description
IC CONV DC/DC STPDN 16-TFBGA
Manufacturer
ST-Ericsson Inc
Type
Step-Down (Buck)r
Datasheet
1.STW41411.pdf
(31 pages)
Specifications of STW41411/T
Internal Switch(s)
Yes
Synchronous Rectifier
Yes
Number Of Outputs
2
Voltage - Output
1.2V, 1.8V
Current - Output
200mA, 400mA
Frequency - Switching
900kHz
Voltage - Input
2.7 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-TFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STW41411/T
Manufacturer:
SANYO
Quantity:
1 000
Part Number:
STW41411/T
Manufacturer:
ST-ERICSSON
Quantity:
20 000
Application information
4.7.1
4.7.2
24/30
Figure 16. Demoboard top layer
PCB layout
Figure 16
board.
TFBGA16 internal bumps access
Pad centers are at 500 µm distance. Pad diameter is 275 µm. The distance between two
adjacent pad edges is only 225 µm. We recommend a distance for lead-out signals from the
center of pad matrix by 75 µm wide trace. Isolation distance in this case is 75 µm (see
Figure 18
Figure 18. TFBGA16 ball pad spacing and track parameters to internal pads
and
and
Figure 17
Figure 19
Grid dot distance :
).
show the PCB layout. All components are on the top side of the
Figure 17. Demoboard assembled with 22 µF
output capacitor
with
A = 500µm
B = 275µm
C = 75µm
STw4141