Diodes ZXLD1615 User Manual

SEMICONDUCTORSDESCRIPTIONThe ZXLD1615 is a PFM inductive boost converterdesigned to provide output voltages of up to 28Vfrom a 2.5V to 5.5V input supp

REFERENCE DESIGNSGeneral Boost ConverterVIN=2.5V to 5.5V, VOUTup to 28VSee page 7 in datasheet for R1 and R2 values for various output voltages.1 Cell

1 Cell Li-Ion to 5V Sepic ConverterTriple Output Boost Converter for LCD or OLED BiasNote: For all manufacturers listing please refer to application s

ZXLD1615SEMICONDUCTORS12ISSUE 3 - AUGUST 2004EuropeZetex GmbHStreitfeldstraße 19D-81673 MünchenGermanyTelefon: (49) 89 45 49 49 0Fax: (49) 89 45 49 49

ABSOLUTE MAXIMUM RATINGS(Voltages to GND unless otherwise stated)Input voltage (VIN)7VLX output voltage (VLX) 30VSwitch output current (ILX) 500mAPowe

ZXLD1615SEMICONDUCTORSISSUE 3 - AUGUST 20043Pin No. Name Description1LX Output of NDMOS switch2GND Ground (0V)3FB Feedback pin for voltage control loo

Device DescriptionThe device is a PFM flyback dc-dc boost converter,working in discontinuous mode.With reference to the chip block diagram and typical

ZXLD1615SEMICONDUCTORSISSUE 3 - AUGUST 20045TYPICAL CHARACTERISTICS

ZXLD1615SEMICONDUCTORSISSUE 3 - AUGUST 20046TYPICAL PERFORMANCE GRAPHS(For typical applications circuit at 22␮H Murata LQH32CN series, TA=25 °C unless

APPLICATIONSSetting output voltageThe ZXLD1615 has an adjustable output voltageallowing the end user maximum flexibility. To set theoutput voltage a p

Capacitor selectionA ceramic capacitor grounded close to the GND pinof the package is recommended at the output of thedevice. Surface mount types offe

Diode selectionThe rectifier diode (D1) should be a fast lowcapacitance schottky diode with low reverse leakageat the working voltage. It should also