ECL2119 Datasheet | E-CMOS

Description The ECL2119 Series is a fixed frequency, constant current step-up DC/DC converter ideal for driving OLED. Output voltage of up to 22V can be derived, and from a li-ion battery supply ,the output voltage can be 12V drive OLED. A 2 ohm resistance of NMOS is integrated in the circuit , withstand voltage can support 22V, with a small SOT23-5 package saves PCB space and BOM cost. Features - Input voltage range 2.7V- 5.5V - Output voltage range up to 22V - Oscillation frequency 1.0MHz±20% - Efficiency 88% - Control PWM control - Stand-by Current ISTB=1.0u A(MAX) - Load capacitor 10u F,ceramic - LX limit Current 600m A Applications - Mobil phones, PHS - PDAs - Digital still cameras Package - SOT23-5L Typical Application Circuit Note: R1 and R2 can be adjusted by the voltage of VOUT and FB Pin; (when vout is equal to 12V,remended resistor R1 = 875K, R2 = 100K,CP=100p F) E-CMOS Corp. (.ecmos..tw) 1/6 8K01N-Rev. F001 PWM Control Step-up DC/DC Converter ECL2119 Ordering Information ECL2119 X XX X Denotes Oscillation Frequency： B：1.0MHZ Embossed Tape : R：Standard Feed S：Reverse Feed Package Type： B2：SOT23-5L Marking Information Part No Package ECL2119BB2X SOT23-5L Mark Information ① ECL2119=Z ② The output voltage of FB pin (V)：C=1.23 ③ Package Type ：3 ④ Assembly lot No： 0-9 ， A-Z; 0-9 ， A-Z mirror writing ， repeated （ G ， I ， J ， O ， Q ， W...