Schematic

BAT60A
BAT60A
LD1117S33
100nF
+3,3V
+5V
FPF2123
1k
BAT60A
BAT60A
100nF
100nF
LD1117S33
10uF
1k
NO FIT
D3
D4
IC5
GND
IN OUT
K
C13
VIN
1
GND
2
ON
3
ISET
4
VOUT
5
IC3
R14
D1
D2
C11
C10
IC4
GND
IN OUT
K
C12
R15
R13
VBATTERY
VBUS
VIN
VBAT
EXT_3V3
mbed-005.1
26/08/2010 16:42:39
2/5
Project-Version:
Date / Time:
Sheet:
mbed
Rset = 460 / Ilim
1k = 460mA
0.1uF decoupling caps to be as close to VIn and Vout as possible
Power Supply Circuits
1k Resistor to load leakage