Datasheet MAX1698, MAX1698A (Maxim) - 3

High-Efficiency Step-Up Current Regulator for LEDs MAX1698/MAX1698A ELECTRICAL CHARACTERISTICS
(VCC = +3.3V,
TA = -40°C to +85°C
, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN MAX UNITS
Supply Voltage VCC 2.7 5.5 V Quiescent Supply Current ICC VFB = 0.3V 500 µA Undervoltage Lockout Rising edge 2.20 2.65 V ADJ = REF 280 320 FB Regulation Voltage VFB mV VADJ = 100mV 13 35 MAX1698A 2.0 3.0 CS Trip Current FB = GND A MAX1698 0.8 3.0 Minimum Off Time tOFF(MIN) FB = GND, ADJ = REF 0.6 1.4 µs Maximum On Time tON(MAX) FB = GND, ADJ = REF, CS = GND 9 21 µs ADJ Start Threshold 25 75 mV FB Input Bias Current IFB VFB = 300mV -20 20 nA ADJ Input Bias Current IADJ ADJ = REF -50 50 nA Shutdown Supply Current SHDN = GND 1 µA REF Output Voltage VREF IREF = 0 1.17 1.33 V REF Load Regulation ∆VREF IREF = 0 to 150µA -30 mV REF Short-Circuit Current REF = GND 1 mA REF Power-Supply Rejection PSRR V Ratio CC = 2.7V to 5.5V +2 mV/V EXT On-Resistance VCC = 5V 8 Ω SHDN Input High Voltage VIH VCC = 2.7V to 5.5V 2 V SHDN Input Low Voltage VIL VCC = 2.7V to 5.5V 0.8 V SHDN Input Bias Current ISHDN VCC = 2.7V to 5.5V -1 1 µA
Note 1:
Specifications to -40°C are guaranteed by design, not production tested.
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