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ZXLB1600X10TA Datasheet(PDF) 1 Page - Zetex Semiconductors |
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ZXLB1600X10TA Datasheet(HTML) 1 Page - Zetex Semiconductors |
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1 / 16 page  DESCRIPTION The ZXLB1600 inductive switching boost converter accepts an input voltage of between 1.6V and 5.5V and provides an adjustable output voltage of up to 28V for LCD and OLED bias. The device contains an output switch and a second switch to isolate the coil from the input to provide true isolation in shutdown mode. The output can be adjusted by means of an externally applied dc voltage, a PWM control signal, or external feedback resistors and can supply typically 10mA of output current at maximum output voltage. Higher current is available at lower output voltages. The input voltage range accepts a number of battery solutions, including dual dry cell and single Li-Ion cells and PFM operation mode allows the output to be regulated with high efficiency under light or no load conditions. The switching frequency range permits the use of miniature surface mount inductors. A low battery comparator is provided to indicate when the input voltage has fallen to within ±2% of a preset threshold. This threshold is set internally , but can be adjusted externally to any voltage within the supply voltage range. FEATURES • Wide input voltage range: 1.6 to 5.5V • Adjustable output voltage up to 28V, using PWM or analog control voltage • Internal PWM filter • True shutdown (output isolated from input) • Internal output switch and current sense • Low quiescent current: (75 A max) • 5 A (max) shutdown current (including low battery comparator) • Up to 500kHz switching frequency • High efficiency • Small MSOP10 package • Low external component count APPLICATIONS • PDAs • Mobile phones - OLED sub displays • Digital cameras • Portable internet appliances • Palmtop computers • GPS terminals ZXLB1600 ISSUE 3 - SEPTEMBER 2003 SEMICO NDUC TORS 1 LCD AND OLED BIAS BOOST CONVERTER - STN, CSTN SCREENS TYPICAL APPLICATION CIRCUIT |
Similar Part No. - ZXLB1600X10TA |
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Similar Description - ZXLB1600X10TA |
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