LT3580
TYPICAL APPLICATIONS
High Voltage Negative Power Supply Uses Tiny 5.8mm × 5.8mm × 3mm Transformer and Switches at 200kHz
Danger High Voltage! Operation by High Voltage Trained Personnel Only
T1
1:10.4
D1
V
IN
3.3V TO 5V
7, 8
4.7μH
5, 6
1
4
•
•
C2
68nF
FOR ANY V
BETWEEN –50V TO
FB
OUT
D2
–350V, CHOOSE R ACCORDING TO
V
OUT
R
=
FB
V
SW
IN
83.3μA
SHDN
GND
FOR 5V INPUT, KEEP MAXIMUM
OUTPUT POWER AT 1.58W
FOR 3.3V INPUT, KEEP MAXIMUM
OUTPUT POWER AT 0.88W
*MAY REQUIRE MULTIPLE SERIES
RESISTORS TO COMPLY WITH
MAXIMUM VOLTAGE RATINGS
R
4.22M*
FB
LT3580
V
OUT
RT
FB
–350V
VC
4.5mA (V = 5V)
2.5mA (V = 3.3V)
IN
IN
SYNC
SS
10k
100pF
C1
2.2μF
464k
0.47μF
10nF
3580 TA06
C1: 2.2μF, 25V, X5R, 1206
C2: TDK C3225X7R2J683M
D1: VISHAY GSD2004S DUAL DIODE CONNECTED IN SERIES
D2: ON SEMICONDUCTOR MBR0540
T1: TDK LDT565630T-041
3580fc
23
Linear [ Linear ]
