lt3580ems8e-trpbf Linear Technology Corporation, lt3580ems8e-trpbf Datasheet - Page 23

• Manufacturer Part Number: lt3580ems8e-trpbf
• Description: Boost/inverting Dc/dc Converter With 2a Switch, Soft-start, And Synchronization
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
3.3V TO 5V
High Voltage Negative Power Supply Uses Tiny 5.8mm × 5.8mm × 3mm Transformer and Switches at 200kHz
V
IN
C1: 2.2μF , 25V, X5R, 1206
C2: TDK C3225X7R2J683M
D1: VISHAY GSD2004S DUAL DIODE CONNECTED IN SERIES
T1: TDK LDT565630T-041
C1
2.2μF
Danger High Voltage! Operation by High Voltage Trained Personnel Only
464k
SHDN
RT
V
SYNC
IN
LT3580
4.7μH
7, 8
5, 6
SS
SW
GND
1:10.4
VC
•
FB
0.47μF
T1
•
R
1
4
FB
4.22M*
10k
D1
10nF
100pF
3580 TA06
C2
68nF
V
–350V
4.5mA (V
2.5mA (V
OUT
IN
IN
= 5V)
= 3.3V)
FOR ANY V
–350V, CHOOSE R
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
FB
=
83.3μA
V
OUT
OUT
BETWEEN –50V TO
FB
ACCORDING TO
LT3580
23
3580fa