Quectel EC25 series

VBAT
D
5.
1
3.6.3. R
e
The power
d
the power
s
voltage dro
p
supply pow
output (VB
A
The followi
n
power sup
p
DC_IN
470uF
E
C1
100uF
+
1
1
V
e
ference
D
d
esign for t
h
s
ource. Th
e
p
between
t
er for mod
u
A
T), a buck
c
n
g figure sh
p
ly is about
3
100nF
E
C25-A_U
s
C2
100nF 3
3
Figur
e
D
esign fo
r
h
e module i
s
e
power su
p
t
he input a
n
u
le. If there
c
onverte
r
is
ows a refer
e
3
.8V and th
e
51K
4.7
VBAT_EN
Figur
e
s
e
r
_Manual
C
1
C3
3
pF
C4
10pF
e
8: Star St
r
Power S
u
s
very impo
r
p
ply is capa
n
d output is
is a big vol
t
preferred t
o
e
nce desig
n
e
maximum
MI
C
IN
EN
2
1
K
47K
e
9: Refere
n
C
onfidenti
a
1
0
+
C5
1
0
0
uF
ructure of
t
u
pply
r
tant, asthe
ble of provi
not too hig
h
t
age differe
n
o
be used a
s
n
for +5V in
p
load curren
t
C
29302WU
O
U
GND
A
D
J
3 5
n
ce Circuit
a
l / Release
C6
00
nF
C7
33pF
t
he Power
S
performanc
ding suffici
e
h
, it is sugg
e
n
ce betwee
s
a power s
u
p
ut power
s
t
is 3A.
UT
A
D
J
4
100K
47K
1%
1%
of Powe
r
S
d 27 /
6
V
B
V
B
C8
10pF
S
upply
e of the mo
d
e
nt current
u
e
sted that
y
n the input
u
pply.
s
ource. The
470R
S
upply
L
EC25-AU
6
9
Mod
u
B
AT _ RF
B
AT_ BB
d
ule largely
u
p to 2A at
y
ou shouldu
s
source and
designed o
470uF
L
TE Modul
e
ser Manu
a
u
le
depends o
n
least. If th
e
s
e a LDO t
o
the desire
d
utput for th
e
VBAT
100nF
e
a
l
n
e
o
d
e