KSZ9031MNX Datasheet, PDF (27/73 Pages) Micrel Semiconductor – The KSZ9031MNX is a completely integrated triple-speed (10Base-T/100Base-TX/1000Base-T) Ethernet physicallayer transceiver for transmission and reception of data on standard CAT-5 unshielded twisted pair (UTP) cable.

KSZ9031MNX
3.19 Typical Current/Power Consumption
Table 3-9, Table 3-10, Table 3-11, and Table 3-12 show the typical current consumption by the core (DVDDL, AVDDL,
AVDDL_PLL), transceiver (AVDDH) and digital I/O (DVDDH) supply pins, and the total typical power for the entire
KSZ9031MNX device for various nominal operating voltage combinations.
TABLE 3-9: TYPICAL CURRENT/POWER CONSUMPTION
TRANSCEIVER (3.3V), DIGITAL I/O (3.3V)
Condition
1.2V Core
(DVDDL, AVDDL,
AVDDL_PLL)
3.3V Transceiver
(AVDDH)
1000BASE-T Link-Up (no traffic)
1000BASE-T Full-Duplex at
100% Utilization
100BASE-TX Link-Up (no traffic)
100BASE-TX Full-Duplex at
100% Utilization
10BASE-T Link-Up (no traffic)
10BASE-T Full-Duplex at
100% Utilization
Software Power-Down Mode
(Reg. 0h.11 = 1)
211 mA
221 mA
60.6 mA
61.2 mA
7.0 mA
7.7 mA
0.9 mA
66.6 mA
65.6 mA
28.7 mA
28.7 mA
17.0 mA
29.3 mA
4.1 mA
3.3V Digital I/O
(DVDDH)
26.0 mA
53.8 mA
13.3 mA
18.0 mA
5.7 mA
11.1 mA
7.1 mA
Total
Chip Power
560 mW
660 mW
211 mW
228 mW
83 mW
143 mW
38 mW
TABLE 3-10: TYPICAL CURRENT/POWER CONSUMPTION
TRANSCEIVER (3.3V), DIGITAL I/O (1.8V)
Condition
1.2V Core
(DVDDL, AVDDL,
AVDDL_PLL)
3.3V Transceiver
(AVDDH)
1000BASE-T Link-Up (no traffic)
1000BASE-T Full-Duplex at
100% Utilization
100BASE-TX Link-Up (no traffic)
100BASE-TX Full-Duplex at
100% Utilization
10BASE-T Link-Up (no traffic)
10BASE-T Full-Duplex at
100% Utilization
Software Power-Down Mode
(Reg. 0h.11 = 1)
211 mA
221 mA
60.6 mA
61.2 mA
7.0 mA
7.7 mA
0.9 mA
66.6 mA
65.6 mA
28.7 mA
28.7 mA
17.0 mA
29.3 mA
4.1 mA
1.8V Digital I/O
(DVDDH)
14.2 mA
29.3 mA
7.3 mA
10.0 mA
3.1 mA
6.0 mA
3.7 mA
Total
Chip Power
498 mW
534 mW
181 mW
186 mW
70 mW
117 mW
21 mW
 2016 Microchip Technology Inc.
DS00002096C-page 27