Update: 29 September, 2023
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.
File format: PDF
Size: -
MD5 Checksum: 7F6FDD0A2222D230BD12AA674AFAF0A0
Publication date: 03 May, 2012
Downloads: -