ST3M01
TEST CIRCUIT C (Iq)Ia=(Iin)Ia-(Iout)Ia
(Iin)la
(Vin)DC/DC Floating
(Vout)DC/DC=3.5V
A
47 µF
15 µH
Lx
DC/DC
IN_SW
OUT DC/DC
(Iout)la
1 µF
OUT LA
Linear A
DC/DC
(Vin)Lin=2.24V
IN_Linear
47 µF
OUT LB
Linear B
1 µF
Virtual GND
LBO
-
SHDN=HIGH
+
Vref
Ref
Ref
0.1 µF
1 KΩ
GND_SW
GND_Signal
TEST CIRCUIT D (Iq)Ib=(Iin)Ib-(Iout)Ib
(Vin)DC/DC Floating
47 µF
150 µF
15 µH
IN_SW
(Vin)Lin=3.3V
Lx
DC/DC
OUT DC/DC
OUT LA
(Iin)lb
A
Linear A
DC/DC
1 µF
(Iout)lb
1 µF
IN_Linear
OUT LB
Linear B
47 µF
Virtual GND
LBO
-
SHDN=LOW
+
Vref
Ref
Ref
0.1 µF
Ω
1 K
GND_SW
GND_Signal
7/11
STMICROELECTRONICS [ ST ]
