MAX1553ETA+T
Analog Devices Inc.
Price range: $3.33
The MAX1553/MAX1554 drive white LEDs in series witha constant current to provide efficient display backlightingin cellular phones, PDAs, and other hand-helddevices. The step-up converter includes an internal40V, low RDSON, N-channel MOSFET switch for highefficiency and maximum battery life. The MAX1553 hasa current limit of 480mA for driving two to six whiteLEDs, while the MAX1554 has a current limit of 970mAfor driving up to 10 white LEDs.A single analog/PWM Dual Mode™ input provides twosimple means of brightness adjustment. A separateenable input provides on/off control. Soft-start minimizesinrush current during startup.The MAX1553/MAX1554 are available in space-saving8-pin TDFN 3mm x 3mm packages.ApplicationsCell PhonesColor Display BacklightPDA, Palmtop, and Wireless Handhelds
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by: Analog Devices Inc.
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