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60V Step-Down LED Driver
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LT3596
60V Step-Down LED Driver
Features Description 300mA Buck Regulator, Drives Up to 10 LEDs per
Channel with Fast NPN Current Sources
n Fast Current Sources for VLED1-3 LED1-3 Pin Leakage Current VLED1-3 = 42V, PWM1-3 = 0V 1 V
µA 1.0 V 540 mV
200 nA 100
100 102
103 mA
mA ±0.35
±0.35 ±1.5
±2 %
% 1.07 V 0.29 V 10 LED1-3 Short Protection Threshold (from VOUT) V 1000
2.2 l kHz
kHz
V 240 Maximum VREF Current LED Pin Voltage mV 1.0 1.6 SYNC Frequency Range LED String Current Matching %
% 0.8 SYNC Input Low ISET1-3 Pin Voltage V 3 SYNC Input High UNITS 55 330 DA Pin Current to Stop OSC
VSW = 0V MAX 0.4 90
80 Switch Current Limit
Switch Leakage TYP 6 15
1.2 V 1.6 V 200 nA
3596fa LT3596
Electrical …