LT3580

21

3580fg

TYPICAL APPLICATIONS

High Voltage Positive Power Supply Uses Tiny 5.8mm × 5.8mm × 3mm Transformer and Switches at 200kHz

Danger High Voltage! Operation by High Voltage Trained Personnel Only

Start-Up Waveforms

Switching Waveforms

C2

68nF

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

350V

T1

1:10.4

D1

3.3V TO 5V

SW

3580 TA05a

LT3580

D2

464k

10k

SHDN

GND

7, 8

5, 6

1

4

FB

VC

SYNC

SS

RT

10nF

100pF

0.47μF

C1

2.2μF

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

•

•

83.3μA

4.7μH

1A/DIV

50V/DIV

2ms/DIV

5V INPUT

NO LOAD

3580 TA05b

1A/DIV

2V/DIV

AC COUPLED

2μs/DIV

5V INPUT

4.5mA LOAD

3580 TA05c