Datasheet

 2013-2015 Microchip Technology Inc. DS00001987A-page 55
LAN8740A/LAN8740Ai
3.9.3 POWER SUPPLY DIAGRAM (1.2 V SUPPLIED BY EXTERNAL SOURCE)
FIGURE 3-19: POWER SUPPLY DIAGRAM (1.2 V SUPPLIED BY EXTERNAL SOURCE)
LAN8740A/LAN8740Ai
32-VQFN
RBIAS
VSS
12.1k
VDD2A
C
BYPASS
C
BYPASS
VDD1A
VDDIO
C
BYPASS
C
F
VDDDIO
Supply
1.8 - 3.3 V
Power
Supply
3.3 V
VDDCR
470 pF
LED1/
REGOFF
Core Logic
Internal
Regulator
(Disabled)
Ch.2: 3.3 V
Circuitry
INOUT
Ch.1: 3.3 V
Circuitry
VDDCR
Supply
1.2 V
~270 Ohm
10k
1 uF