july 2014 docid026653 rev 1 1 / 9 for further information contact your local stmicroelectronics sales office. www.st.com stod32a 300 ma triple dc - dc converter for powering amoled displays data brief features ? operating input voltage range from 2.5 v to 4.5 v ? 300 ma output current for step - up and inverting converters (v in > 2.9 v) ? 55 ma output current for an auxiliary step - up converter (v in > 2.9 v) ? 4.6 v positive step - up converter ? programmable negative voltage from - 0.8 v to - 4.8 v default - 4.0 v ? auxiliary step - up converter positive voltage programmable step from 5.8 v to 7.9 v default 7.6 v ? soft - start with inrush current protection ? overtemperature protection ? true - shutdown mode ? short - circuit protection ? package qfn16 (3.0x3.0 mm), 0.5 mm pitch applications ? active matrix oled power supply in portable devices ? cellular phones, multimedia players, camcorders and digital still cameras description the stod32a is a triple dc - dc converter for amoled display panels. it integrates 300 ma step - up and inverting dc - dc converters plus auxiliary step - up converter. this device is particularly suitable for battery - operated products, in which the major concern is overall system efficiency. output voltages can be programmed by a dedicated pin, which implements s wire protocol. soft - start with controlled inrush current limit, thermal shutdown and short - circuit protection are integrated functions of the devi ce.
application schematic stod32a 2 / 9 docid026653 rev 1 1 application schematic figure 1 : application schematic table 1: typical external components component manufacturer value size l 1 , l 2 , l 3 toko alps coilcraft 4.7 h 2.5x2.0x1.2 2.5x2.0x1.2 4.0x4.0x1.2 c ina , c inp , c o2 , c o3 murata semco 22 f 10 f 0805 0402 0603
stod32a package mechanical data docid026653 rev 1 3 / 9 2 package mechanical data in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com. ecopack ? is an st trademark.
qfn16 ( 3.0x3.0 mm) package mechanical data stod32a 4 / 9 docid026653 rev 1 3 qfn16 (3.0x3.0 mm) package mechanical data figure 2 : qfn16 (3.0x3.0 mm) drawings
stod32a qfn16 ( 3.0x3.0 mm) package mechanical d ata docid026653 rev 1 5 / 9 table 2: qfn16 (3.0x3.0 mm) mechanical data dim. mm min. typ. max. a 0.49 0.55 0.61 a1 0.17 0.20 0.23 a2 0.27 0.30 0.33 b 0.23 0.26 0.29 d 1.68 1.71 1.74 d1 1.20 e 1.588 1.618 1.648 e1 0.80 e 0.40 fd 0.255 fe 0.409 sd 0.20 ccc 0.08 $ 0.05
qfn16 ( 3.0x3.0 mm) package mechanical data stod32a 6 / 9 docid026653 rev 1 figure 3 : qfn16 (3.0x3.0 mm) recommended footprint all dimensions are in mm
stod32a ordering information docid026653 rev 1 7 / 9 4 ordering information table 3: ordering information order code positive voltage negative voltage auxiliary positive voltage package packing STOD32ATPQR 4.6 v - 0.8 to 4.8 v 5.8 to 7.9 v qfn16 3x3 mm 3000 samples per reel
revision history stod32a 8 / 9 docid026653 rev 1 5 revision history table 4: document revision history date revision changes 16 - jul - 2014 1 initial release.
stod32a docid026653 rev 1 9 / 9 important notice C please read carefully stmicroelectronics nv and its subsidiaries (st) reserve the right to make changes, corrections, enhancements, modifications , and improvements to st products and/or to this document at any time without notice. purchasers should obtain the latest relevant information on st products before placing orders. st products are sold pursuant to sts terms and conditions of sale in place at the time of or der acknowledgement. purchasers are solely responsible for the choice, selection, and use of st products and s t assumes no liability for application assistance or the design of purchasers products. no license, express or implied, to any intellectual property right is granted by st herein. resale of st products with provisions different from the information se t forth herein shall void any warranty granted by st for such product. st and the st logo are trademarks of st. all other product or service names are the property of their respective owners. information in this document supersedes and replaces information previously supplied in any prior versions of this document. ? 2014 stmicroelectronics C all rights reserved
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