
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Locate near
DUT power pin
LABEL ON EACH RESPECTIVE PIN OF
HEADERS: 1.8V, 2.5V, 3.3V
LABEL AS INDICATED FOR 3-PIN HEADERS
VDDA_REG
VDDD_REG
Tantalum
preferred
3mm
L
L
2.0 oz
Copper
L = 5mm is more
than enough
PCB Copper Decal
Recommandations for LM317LD
SO-8
VDDD_J
VDDA_J
Header Alignment:
Single pin header above
and below the center pin
of 3-pin header so that
center pin can be jumped
with the surrounding 4
pins, shown as left
VDDO_J
VDDO_J
VDDO_J
GND_J
VDD_J
USB_5V VDDO_1.8V
VDDO_2
VDDO_0
VDDO_1
VDDA_REG
VDDD_REG
USB_5V
USB_5V VDDO_2.5V
USB_5V VDDO_3.3V
VDDD_REG
VDDA_REG
GND
VDDO_2.5V
VDDO_3.3V
VDDO_1.8V
VDDO_2.5V
VDDO_3.3V
VDDO_1.8V
VDDO_2.5V
VDDO_3.3V
VDDO_1.8V
VDDO_J
GND GND
GND
VDD_J VDDA
VDDD
GND GND
GND
GND
VDDO0
VDDO1
VDDO2
GND
GND
GNDGND
GND
GND
GND
GND
USB_5V
VDDD_REG
VDDA_REG
Title
Size Document Number Rev
Date: Sheet of
305-PD-15-XXXX 1
IDT_5P49V5943_44_EVAL_BOARD_REV1
B
34Thursday, March 05, 2015
Title
Size Document Number Rev
Date: Sheet of
305-PD-15-XXXX 1
IDT_5P49V5943_44_EVAL_BOARD_REV1
B
34Thursday, March 05, 2015
Title
Size Document Number Rev
Date: Sheet of
305-PD-15-XXXX 1
IDT_5P49V5943_44_EVAL_BOARD_REV1
B
34Thursday, March 05, 2015
FB4
BLM18BB221SN1D
J16 FB2
BLM18BB221SN1D
JP4
Header_3Pin
U3
LM317LBD
VIN
1
VOUT_2
2
VOUT_3
3
Adjust
4
NC_8 8
VOUT_7 7
VOUT_6 6
NC_5 5
J15
R59 402_1%
JP5
Header_3Pin
R58
243_1%
J17
TP2
C17
0.1uF
C18
0.1uF
R56 107_1%
VDDO_1
C19
10uF
C46
10uF
VDDD_1
GND1
C30
10uF
VDDO_0
VDDA_1
GND2
U5
LM317LBD
VIN
1
VOUT_2
2
VOUT_3
3
Adjust
4
NC_8 8
VOUT_7 7
VOUT_6 6
NC_5 5
C34
0.1uF
C24
10uF
R53 2.2
C25
10uF
C31
0.1uF
C22
0.1uF
C32
0.1uF
C38
10uF
C36
10uF
C20
0.1uF
TP5
C29
0.1uF
R57 243_1%
R55
243_1%
C21
0.1uF
C28
0.1uF
TP6
FB1
BLM18BB221SN1D
C37
0.1uF
R54
243_1%
C27
10uF
TP1
C45
0.1uF
C15
0.1uF
JP6
Header_3Pin
C35
0.1uF
C26
0.1uF
C16
10uF
VDDO_2
TP3
FB5
BLM18BB221SN1D
C33
10uF
JP3
Header_3Pin
C23
0.1uF
TP4
JP2
Header_3Pin
U4
LM317LBD
VIN
1
VOUT_2
2
VOUT_3
3
Adjust
4
NC_8 8
VOUT_7 7
VOUT_6 6
NC_5 5
FB3
BLM18BB221SN1D