Datasheet ZXLD381 (Diodes) - 3

A Product Line of
Diodes Incorporated
ZXLD381 Absolute Maximum Ratings Parameter Rating Unit
Supply Voltage (VCC) -0.6 to 10 V Output Voltage (VOUT) -0.6 to 20 V Supply Current 20 mA Output Switch Current 800 mA Power Dissipation SOT23-3 450 mW Power Dissipation Die 1 W Operating Temperature Range 0 to 85 °C Storage Temperature Range -55 to 150 °C
Electrical Characteristics
Measured at TAMB = 25°C, L = 4.7µH and VCC = 1.5V unless otherwise specified.
Limits Parameter Conditions Units Min Typ. Max
Supply Voltage Operating Range L = 10μH 0.9 2.2 V Minimum Supply Start-up Voltage L = 10μH 0.8 0.9 V Switch Current At turn-off 250 320 400 mA Switch Saturation Voltage IOUT = 200mA 100 300 mV Switch Leakage Current VOUT = 20V 40 70 120 µA Mean LED Current VLED = 3.5V 40 55 70 mA Efficiency VLED = 3.5V 85 % Operating Frequency VLED = 3.5V 350 kHz Discharge Pulse Width 0.7 1.5 2.5 µs ZXLD381 3 of 9 May 2010 Document number: DS32188 Rev. 3 - 2
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