Bx600 Series of Breakout Boards for BL600 module
User Guide
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All BL600 breakout board versions will require modifications, through the use of an LDO regulator, U3, to
interface to an external supply of greater than 3.6V.
Remove R2(0R, 0402) and fit R3(0R, 0402)
Fit LDO regulator U3 (SOT-553 package, for example Toshiba TCR2EE33)
Fit regulator input capacitor C8 (2.2uF, 0603 body size)
Fit regulator output capacitors C6 (15pF, 0402 body size) and C7 (2.2uF, 0603 body size)
R6 should NOT be fitted (DNF) for operation of the Toshiba TCR2EE33, U3, regulator
Figure 26: External system greater than 3.6V on J2
http://www.digikey.com/product-detail/en/TCR2EE33,LM(CT/TCR2EE33LM(CTTR-ND/4965705
Manufacturer
Toshiba Semiconductor and Storage
Manufacturer Part Number TCR2EE33,LM(CT
Description
IC REG LDO 3.3V 0.2A ESV
Datasheets
TCR2EF,EE Series -
Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Current - Output
200mA
Voltage - Dropout (Typical) 0.15V @ 150mA
Voltage - Input
Up to 5.5V
Current - Limit (Min)
-
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-553
Supplier Device Package
ESV
J3
HEADER 6
1
2
3
4
5
6
GND
BT_RTS_S23
BT_RX_S22
GND
BT_TX_S21
BT_CTS_S24
GND
2.5mm pitch 6-way
connector
GND
3.3V
D1
DIODE
0.1V drop accross
D1[BAT60A]
C8
DNF
GND
GND
GND
J2
C
R
1
6
3
2
B
a
tt
e
ry
H
o
ld
e
r
+
1
-
2
C3
47uF
1
2
GND
R2
0R
U3
DNF
VIN
3
GND
2
CONT
1
NC
5
VOUT
4
R3
DNF
VCC
R6
DNF
NOPOP (PIN HEADER,2.0mm 1X2P,)
J4
1
1
2
2
C6
DNF
C7
DNF
