LT3460 Datasheet | Linear Technology

Features n 1.3MHz (LT3460) Switching Frequency n 650k Hz (LT3460-1) Switching Frequency n High Output Voltage: Up to 36V n 300m A Integrated Switch (LT3460) n 180m A Integrated Switch (LT3460-1) n Wide Input Range: 2.5V to 16V n Uses Small Surface Mount ponents n Low Shutdown Current: <1μA n Low Profile (1mm) SC70 (LT3460 and LT3460-1), SOT-23 (Thin SOT™) (LT3460) and 2mm × 2mm DFN (LT3460-1) Packages APPLICATIONS n Digital Cameras n CCD Bias Supply n XDSL Power Supply n TFT-LCD Bias Supply n Local 5V or 12V Supply n Medical Diagnostic Equipment n Battery Backup LT3460/LT3460-1 1.3 MHz/650k Hz Step-Up DC/DC Converter in SC70, Thin SOT and DFN DESCRIPTION The LT®3460/LT3460-1 are general purpose step-up DC/ DC converters. The LT3460/LT3460-1 switch at 1.3MHz/ 650k Hz, allowing the use of tiny, low cost and low height capacitors and inductors. The constant frequency results in low, predictable output noise that is easy to filter. The high voltage switches in the LT3460/LT3460-1 are rated at 38V, making the device ideal for boost converters up to 36V. The LT3460 can generate 12V at up to 70m A from a 5V supply. The low 1m A quiescent current and 650k Hz switching frequency of LT3460-1 make it ideal for lower current applications. The LT3460 is available in SC70 and SOT-23 packages. The LT3460-1 is available in SC70 and 2mm × 2mm DFN packages. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Thin SOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION 5V to 12V, 70m A Step-Up DC/DC Converter 22μH VIN 5V 4.7μF OFF ON VIN SW LT3460 SHDN 130k 22p F VOUT 12V 70m A 1μF 15k 3460 F01 EFFICIENCY (%) Efficiency 60 0 20 40 LOAD CURRENT (m A) 3460 F01a Switching...