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                  开关模式升、降压变换器

                   

                Part No

                Power switching

                Vin(V)

                Vout(V)

                Fosc (KHz)

                Max. duty cycle

                Mode

                Package

                Buck /Boost

                LC3406/ LC3407 /LC3409

                Dual 1.2A

                2.6-7.0

                ADJ Vfb=0.6V

                1500

                100%

                sync. PFM/PWM

                SOT23-5

                Buck

                LC2126

                Dual 2A

                2.5-6.0

                ADJ Vfb=0.6V

                3000

                100%

                sync. PFM/PWM

                SOT23-5

                Buck

                LC2127

                Dual 1.2A

                2.5-6.0

                ADJ Vfb=0.6V

                1500

                100%

                sync. PFM/PWM

                SOT23-5

                Buck

                LC2300

                EXT.

                3.0-18

                ADJ Vfb=1.24V

                500

                100%

                PFM/PWM

                SOT23-5

                Buck

                LC2316

                1.5A NPN

                3.6-20

                ADJ Vfb=1.25V

                500

                88%

                PWM

                SOP8

                Buck

                LC2319

                2A PFET

                3.6-20

                ADJ Vfb=1.25V

                1200

                97%

                PWM

                SOP8

                Buck

                LC2322

                Dual 2A

                3.6-18

                ADJ Vfb=0.923V

                340

                88%

                sync. PFM/PWM

                SOP8/ESOP-8

                Buck

                LC2325

                Dual 1.2A

                4.0-24

                ADJ Vfb=0.81V

                1400

                88%

                PFM/PWM

                SOT23-6

                Buck

                LC3320

                1.8A 20V

                2.0-6.0

                20V

                3000

                N/A

                LINEAR

                SOT23-6

                BOOST

                LC3350

                0.8A 20V

                2.0-5.0

                40V

                600

                N/A

                PFM/PWM

                SOT23-6

                BOOST

                LC3612

                7 MOSFET 3X Charge pump

                3.0-5.5

                12V/50mA

                620

                N/A

                3X Pump

                SOP-8

                Charge Pump

                LC3650

                4 MOSFET 3X Charge pump

                2.5-4.5

                5V/400mA

                500

                N/A

                2X Pump

                SOT23-6

                Charge Pump