LT3472
U
TYPICAL APPLICATIO S
V
IN
3V TO 4.2V
C
IN
2.2µF
C
NF
L
L
P
N1
47µH
1µF
22µH
SWP
V
SWN
DN
V
IN
POS
15V
V
POS
R
FBP
550k
20mA
L
N2
LT3472
GND
FBP
47µH
R
C
, 4.7pF
FBP
FBN
V
320k
NEG
–8V
FBN
50mA
C
FBN
10pF
SHDN
SHDN
SSP
SSN
C
C
C
C
OP
2.2µF
SSP
100nF
SSN
100nF
ON
2.2µF
3472 TA02
C
C
C
C
: TAIYO YUDEN JMK107BJ225
IN
: TAIYO YUDEN EMK316BJ225
OP
NF
ON
: TAIYO YUDEN EMK212BJ105
: TAIYO YUDEN LMK212BJ225
L : MURATA LQH32CN220
P
L
, L : MURATA LQH32CN470
N1 N2
VPOS Load Step Response
VNEG Load Step Response
15mA
25mA
I
POS
–20mA
–30mA
I
NEG
V
V
POS
NEG
20mV/DIV
10mV/DIV
3472 TA04
3472 TA05
20µs/DIV
50µs/DIV
3472f
10
Linear [ Linear ]
