LAN9218I_12 Datasheet, PDF (128/134 Pages) SMSC Corporation – High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX and Industrial Temperature Support

High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX and Industrial Temperature Support
Datasheet
7.5
Worst Case Current Consumption
This section details the worst case current consumption for each device power supply. These values
are provided to assist system designers with proper power supply design. These values cannot be
used to determine typical power consumption of the device.
Note: The current measurements listed below were taken under the following conditions:
Temperature: .................................................................................................................... -40^oC to +85^oC
Device VDD:.................................................................................................................. +3.30 V +/- 10%
Note: Current consumption is determined by operating frequency, temperature, and supply voltage,
as well as external source/sink requirements.
Table 7.3 Maximum Supply Current Characteristics
PARAMETER
SUPPLY NAME
MAX
UNITS
NOTES
Internal Regulator Supply Current
+3.3V I/O Supply Current
+3.3V Analog Supply Current
Reference Supply Current
VREG
69
mA
VDD_IO
13
mA
VDD_A
40
mA
VDD_REF
31
mA
Note: Above values do not include the supply current for the magnetics. Based on the recommended
implementation, the maximum supply current needed for the magnetics is 108mA.
Revision 2.9 (03-01-12)
128
DATASHEET
SMSC LAN9218i