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19-1621; Rev 2; 2/07
High-Efficiency Step-Up Current Regulator for LEDs
General Description
The MAX1698 and MAX1698A are efficient drivers for white or color LEDs.
They are ideal for large LED backlit displays in PDAs and laptop computers.
Numerous benefits include greater simplicity, lower cost, higher efficiency, longer bulb life, and greater reliability when compared to fluorescent (CCFL) and electroluminescent (EL) lamps.
The MAX1698/MAX1698A are switch-mode boost controllers in which LED current, rather than output
voltage, is regulated The devices drive series-connected LEDs with a controlled current that is measured with a typically 15Ω sense resistor, not an expe...