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DC-DC converter IC, White LED driver IC (The following is a product of ASAHI KASEI TOKO POWER DEVICES CORPORATION.)   * Depending on external transistor. Type Specification P/N [ Package ] DC-DC converter White LED driver Vop Top PD fop Application manual  Bipolar Step-up DC-DC converter IC / White LED driver IC TK11840L TK11840LTL-GH [ SOT23L-8 ] Catalog (180kB) PWM Step- up External Adjus table   Series 2 or more * Inductive External schottky 80% 1.8∼ 10.0V -20 +85 °C 400 mW 1.0 MHz GC3- H004 (220kB) GC3- I015C (230kB) TK11851L TK11851LTL-GH [ SOT23L-8 ] (170kB) Pulse skip Step- up Internal Adjus table 400 mA Series 2 to 4 Inductive External schottky 80% 2.3 10.0V -30 +85 °C 400 mW 800 kHz GC3- H043A (500kB) GC3- H032B (410kB) TK11855F TK11855FTL-GH [ SON3024-8 ] (170kB) PWM Step- up Internal Adjus table 600 mA Series 2 to 4 Inductive External schottky 85% 2.65 16.0V -30 +85 °C 600 mW 570 kHz GC3- N013 (420kB) GC3- K003A (250kB) TK11859F TK11859FTL-GH [ SON3024-8 ] (170kB) PWM Step- up Internal Adjus table 360 mA Series 2 to 4 Inductive External schottky 83% 2.30 16.0V -30 +85 °C 600 mW 1.2 MHz GC3- N015 (400kB) GC3- L024 (220kB) TK11880F TK11880FTL-GH [ SON3024-8 ] (170kB) PWM Step- up Internal Adjus table 1.3A Series 2 to 6 Inductive External schottky 80% 2.65 10.0V -30 +85 °C 600 mW 1.0 MHz GC3- M010 (170kB) GC3- K015 (330kB) TK11890AB1 TK11890AB1G0B [ FC-9 ] (180kB) PWM Step- up Internal Adjus table 1.0A Series 2 to 4 Inductive External schottky 80% 2.65 8.0V -30 +85 °C 600 mW 2.0 MHz     TK11891F TK11891FTL-GH [ SON3024-8 ] (170kB) PWM Step- up Internal Adjus table 1.4A Series 2 to 4 Inductive External schottky 80% 2.65 16.0V -30 +85 °C 600 mW 2.0 MHz GC3- N018 (390kB) GC3- J022B (330kB) TK11892F TK11892FTL-GH [ SON3024-8 ] (170kB) PWM Step- up Internal Adjus table 1.4A Series 2 to 4 Inductive External schottky 80% 2.65 8.0V -30 +85 °C 600 mW 2.0 MHz GC3- M009 (370kB) GC3- L011B (460kB) TK11894AM8 TK11894AM8G0B [ HSON3030B-10 ] (170kB) PWM Step- up+ constant current source Internal Adjus table 2.0A Series 2 to 4 Inductive External schottky 80% 2.5 6.0V -30 +85 °C 1000 mW 2.0 MHz     TK11895AB6 TK11895AB6GHB [ FC-9 ] (180kB) PWM Step- up+ constant current source Internal Adjus table 1.0A Series 2 to 4 Inductive External schottky 80% 2.65 8.0V -30 +85 °C 600 mW 2.0 MHz GC3- O001 (370kB)   TK11898AB6 TK11898AB6GHB [ FC-16 ] (230kB) PWM Step- up+ constant current source Internal Adjus table 2.0A Series or 2 Inductive External schottky 80% 2.5 5.5V -30 +85 °C 1000 mW 1.8 MHz     Type Specification P/N [ Package ] DC-DC converter White LED driver Vop Top PD fop Application manual  CMOS Step-up DC-DC converter IC / White LED driver IC TK61220AQ4 TK61220AQ4G0B [ HQFN4040-24 ] (180kB) PWM Step- up External Adjus table - - Inductive External schottky 83% 2.65 16.5V -40 +105 °C 2500 mW 2.2 MHz GC3- N007A (347kB) GC3- N008B (343kB) TK61222CQ6 TK61222CQ6GHB [ HQFN4040-24 ] (180kB) PWM Step- up Internal Adjus table 2.3A Series 10 to 6 Inductive External schottky 83% 4.25 25V -40 +105 °C TBD 2.0 MHz     TK61224BQ5 TK61224BQ5GHB [ HQFN5050-32 ] (210kB) PWM Step- up Internal Adjus table 2.3A Series 10 to 6 Inductive External schottky 83% 4.25 25V -40 +85 °C 2.5W 2.0 MHz     TK65604AB6 TK65604AB6GHB [ FC3050A-8 ] (220kB) PWM Step- up Internal Adjus table 400 mA Series 1 to 4 Inductive External schottky 84% 2.7 5.5V -30 +85 °C 660 mW 1.3 MHz     These products are compliant to RoHS direction. ↑TOP Type Specification P/N [ Package ] Vop Top PD fop Application manual 　Step down DC-DC converter IC TK6015XAB6 TK6015XAB6GHB [ FC-8 ] (180kB) PWM Step down Internal 1.2 3.3V 500 mA 90% With the synchronous rectifier & LDO regulator (alternately active). 2.8 5.5V -40 +85 °C 560 mW (mounted on PCB) 1.2 MHz     TK82596AU3 TK82596AU3G0L [ TO252-5 ] (180kB) PWM Step down Internal Adjus table (1.23 37V) 3.0A 79% Wide output voltage range. 4.5 40V -40 +125 °C 800 mW 150 kHz     TK86901AM1 TK86901AM1GHL [ SOP-8 ] (170kB) PWM Step down External - Adjus table - Analog dimming & PWM dimming can be applied. 8.0 12.0V -45 +105 °C 600 mW 30k 300 kHz     These products are compliant to RoHS direction. ↑TOP