EP1S40B956C5 Altera, EP1S40B956C5 Datasheet - Page 847
EP1S40B956C5
Manufacturer Part Number
EP1S40B956C5
Description
IC STRATIX FPGA 40K LE 956-BGA
Manufacturer
Altera
Series
Stratix®r
Datasheet
1.EP1S10F484I6N.pdf
(864 pages)
Specifications of EP1S40B956C5
Number Of Logic Elements/cells
41250
Number Of Labs/clbs
4125
Total Ram Bits
3423744
Number Of I /o
683
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
956-BGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Gates
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EP1S40B956C5
Manufacturer:
ALTERA/阿尔特拉
Quantity:
20 000
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Figure 14–4. Adjustable-Output Linear Regulator
Altera Corporation
January 2005
V
IN
+
C
1
IN
Linear Regulator
I
ADJ
Switching Voltage Regulators
Step-down switching regulators can provide 3.3-V-to-1.5-V conversion
with up to 95% efficiencies. This high efficiency comes from minimizing
quiescent current, using a low-resistance power MOSFET switch, and, in
higher-current applications, using a synchronous switch to reduce diode
losses.
Switching regulators supply power by pulsing the output voltage and
current to the load.
of switching regulators compared to linear regulators. For more
information on switching regulators, see Application Note 35: Step Down
Switching Regulators from Linear Technology.
There are two types of switching regulators, asynchronous and
synchronous. Asynchronous switching regulators have one field effect
transistor (FET) and a diode to provide the current path while the FET is
off (see
Highly efficient (typically >80%)
Reduced power dissipation
Smaller heat sink requirements
Wider input voltage range
High power density
ADJ
Table 14–4. Switching Regulator Advantages & Disadvantages
Figure
OUT
Advantages
14–5).
V
Table 14–4
REF
R
R
1
2
+
shows the advantages and disadvantages
C
2
V
Generates EMI
Complex to design
Requires 15 or more supporting
components
Higher cost
Requires more board space
OUT
Stratix Device Handbook, Volume 2
= [V
REF
Designing with 1.5-V Devices
× (1 +
Disadvantages
R
R
1
2
)] + (I
ADJ
× R
1
)
14–7
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