TWR-K
W
2
x
Dxxx
T
o
we
r KW2
x
Dxx
x
Hardwa
re Re
fer
e
n
ce Manu
al, Re
v
. 0.2
Fre
e
scale Semico
nductor
3-1
3
3.3
Schematic, Board Layout, and Bill of Material
Figure 3-8. TWR-KW24D512 Schematic
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
3.3V BUCK/BOOST REGULATOR
TO USE TPS63000,
REPLACE RESISTORS WITH
THE FOLLOWING VALUES:
R1 = 100 OHM, R2 = 1.24M
AND POPULATE R5.
OUTPUT VOLTAGE WILL BE 3.6V
POWER SELECTOR
POWER ON
LED VOLTAGE
MCU VOLTAGE
RF VOLTAGE
Power Switch
SCH-27845
SEE NOTE C
External Voltage
P5V_USB
V_MAIN
V_REG
VCC
V_LED
V_MCU
V_RF
V_LED
3V3_ELEV
5V_ELEV
VREG_IN
VREG_IN
V_EXT
V_EXT
V_MAIN
VOUT33
VOUT33
VOUT33_SW
Drawing Title:
Size
Document Number
Rev
Date:
Sheet
of
Page Title:
ICAP Classification:
FCP:
FIUO:
PUBI:
C
TWR- KW24D512
C
Thursday, August 22, 2013
POWER SUPPLY
4
8
X
___
___
Drawing Title:
Size
Document Number
Rev
Date:
Sheet
of
Page Title:
ICAP Classification:
FCP:
FIUO:
PUBI:
C
TWR- KW24D512
C
Thursday, August 22, 2013
POWER SUPPLY
4
8
X
___
___
Drawing Title:
Size
Document Number
Rev
Date:
Sheet
of
Page Title:
ICAP Classification:
FCP:
FIUO:
PUBI:
C
TWR- KW24D512
C
Thursday, August 22, 2013
POWER SUPPLY
4
8
X
___
___
TP12
Q1
SI2305
1
3
2
D2
MBR0520LT1G
A
C
TP10
J3
HDR TH 1X3
1
2
3
J1
HDR 2X3
1
2
3
4
6
5
TP2
TP1
TP507
J28
HDR 1X2
1
2
R7
4.7K
R4
0
R9
10K
TL3
TL1
TL2
R6
0
C1
10UF
SW5
DPDT SWITCH
2
1
3
6
4
5
J2
HDR 2X3
1
2
3
4
6
5
R8
0
C4
0.1UF
TP4
U1
TPS63001
EN
6
GND
9
L1
4
L2
2
PS/SYNC
7
VOUT
1
VIN
5
VINA
8
FB
10
PGND
3
PPAD
11
L1
3.3uH
1
2
C2
10UF
TP6
TP5
D4
GREEN
A
C
R1
0
C3
10UF
TP9
TP7
R2
0
TP3
D1
MBR0520LT1G
A
C
TP11
R10
330
D3
MBR0520LT1G
A
C
R5
200K
DNP
