Datasheet

LT3090
28
3090fa
For more information www.linear.com/LT3090
High Efficiency Low Noise Single Inductor Positive-to-Negative Converter with LDO Input-to-Output Control
Typical applicaTions
LT3090
GND
ILIM
SHDN
3090 TA14
–
+
50µA
SET
0.1µF
OUT
IMONN
4.7µF
49.9k
1%
V
OUT
–2.5V
MAX I
OUT
600mA
IN
IMONP
10k
4.7µF
BD
BOOST
SW
FB
LT3480
V
IN
RT
47µF
PG
SYNC
RUN/SS
GND V
C
V
IN
–5V
L: COILCRAFT XAL5050
D: DIODES INC. DFLS230L
M: VN2222
QP: 2N3906
Z: 1N5339B (5.6V)
V
IN
12V
2.2nF
1µF
QP QP
M
Z
D
L
10µH
(500kHz)
68.1k
1%
LDO
OUT
– 2V
MAX: –5V
MIN: –0.8V
1k
5.36k
47µF
1nF
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.