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YB1520
High Power Step-up DC-DC Converter, White LED Driver
Description
The YB1520 is a step-up DC-DC converter; operates as current source to drive up to 9 white LEDs in series or 30 white LEDs in parallel/series configuration.
Series connecting of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors.
The light intensity of these LEDs is proportional to the current passing through them.
The YB1520 switches at a fixed frequency of 700KHz, allowing the use of tiny, low profile inductors and
capacitors to minimize footprint and cost in space consideration applications for cellular phone backlighting or oth...