LTC3562EUD#PBF

LTC3562 is a quad high efficiency monolithic synchronous step-down regulator with an I²C interface. Two regulators are externally adjustable and can have their feedback voltages programmed between 425mV and 800mV in 25mV steps (Type A). The other two regulators are fixed output regulators whose output voltages can be programmed between 600mV and 3.775V in 25mV steps (Type B). All four regulators operate independently and can be put into pulse skip, LDO, Burst Mode operation, or forced Burst Mode operation through I²C control. The Type-A regulators have separate RUN pins that can be enabled if I²C control is unavailable. Switching frequency is internally set to 2.25MHz, allowing the use of small surface mount inductors and capacitors. All regulators are internally compensated. It is used in application like miscellaneous handheld applications with multiple supply rails, personal information appliances, wireless and DSL modems, digital still cameras, MP3 players, portable instruments.

• Programmable modes: pulse skip, LDO, Burst Mode®, forced burst mode operation
• Slew limiting reduces switching noise
• Power-on reset output for regulator R600A
• VIN shutdown current is 1μA max at (TA = 25°C, VIN = 3.8V)
• Fixed 2.25MHz switching frequency (pulse skip mode)
• Maximum duty cycle is 100% min at ( TA = 25°C, VIN = 3.8V)
• Operating temperature is -40°C to +85°C
• Package style is 20-lead plastic QFN

Hinweise

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