Datasheet

LT3598
19
3598fb
TYPICAL APPLICATIONS
L1
10μH
D1
C2
4.7μF
3598 TA02a
LT3598
V
O_SW
FB
OPENLED
PWM
SHDN
SYNC
LED1
LED2
LED3
LED4
LED5
LED6
V
OUT
SWV
IN
R4
2.4M
R5
140k
R3
14.7k
R7
178k
C1: MURATA GRM21BR71E225K
C2: MURATA GRM32ER71H475K
C3: TAIYO YUDEN LMK212BJ225MG
D1: DIODES, INC. SBR140S3
L1: TOKO 1123AS-100M
R9
10k
R6
100k
PWM
SHDN
SYNC
C1
2.2μF
PV
IN
11.4V TO 12.6V
C3
2.2μF
V
IN
3.2V TO 5.5V
R
C
2k
C
C
10nF
RT
CTRL
V
REF
V
C
SS GND
T
SET
I
SET
C4
0.1μF
C5
47pF
R1
21.5k
R8
107k
20mA
C6
100pF
2 MHz LED Driver for 20 White LEDs
PWM Dimming (3000:1)
PWM
5V/DIV
I
L
200mA/DIV
I
LED, total
50mA/DIV
3598 TA07a
PV
IN
= 12V, V
IN
= 3.3V
1μs/DIV