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MAX8901B

Maxim Integrated Products
Part Number MAX8901B
Manufacturer Maxim Integrated Products
Description Highest Efficiency Supply
Published May 4, 2009
Detailed Description 19-0865; Rev 0; 8/07 Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package www.datasheet4u.com ...
Datasheet PDF File MAX8901B PDF File

MAX8901B
MAX8901B

Overview
19-0865; Rev 0; 8/07 Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package www.
datasheet4u.
com KIT ATION EVALU E L B AVAILA General Description ♦ High Efficiency, Up to 91% ♦ 2.
6V to 5.
5V Input Voltage Range ♦ Fixed-Frequency Operation Features MAX8901A/MAX8901B The MAX8901A/MAX8901B step-up converters drive from two to six series-connected white LEDs (WLEDs) with constant current to provide uniform WLED intensity for LCD backlighting in cell phones, PDAs, and other handheld devices.
The MAX8901_ operate at a fixed 750kHz (typ) switching frequency, allowing for tiny external components, and are optimized for the highest possible efficiency over the full 1-cell Li+/Li-Poly battery range.
These converters use a single input (ON) to enable the IC and to control WLED intensity.
The MAX8901A requires a direct PWM input to regulate WLED intensity with the WLED current proportional to the PWM duty cycle.
The MAX8901B uses single-wire, serial-pulse dimming that re...


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