LTC3530 Series

Wide Input Voltage Synchronous Buck-Boost DC/DC Converter

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Wide Input Voltage Synchronous Buck-Boost DC/DC Converter

Part	Voltage - Output (Max) [Max]	Current - Output	Output Configuration	Package / Case	Voltage - Input (Max) [Max]	Output Type	Voltage - Input (Min) [Min]	Frequency - Switching [Min]	Frequency - Switching [Max]	Function	Number of Outputs	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Supplier Device Package	Voltage - Output (Min/Fixed)	Mounting Type
Analog Devices Inc./Maxim Integrated LTC3530EDD#TRPBF	5.25 V	600 mA	Positive	10-WFDFN Exposed Pad	5.5 V	Adjustable	1.8 V	300 kHz	2 MHz	Step-Up/Step-Down	1	85 C	-40 ¯C	Buck-Boost	10-DFN (3x3)	1.8 V	Surface Mount
Analog Devices Inc./Maxim Integrated LTC3530EMS#PBF	5.25 V	600 mA	Positive	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	5.5 V	Adjustable	1.8 V	300 kHz	2 MHz	Step-Up/Step-Down	1	85 C	-40 ¯C	Buck-Boost	10-MSOP	1.8 V	Surface Mount
Analog Devices Inc./Maxim Integrated LTC3530EDD#PBF	5.25 V	600 mA	Positive	10-WFDFN Exposed Pad	5.5 V	Adjustable	1.8 V	300 kHz	2 MHz	Step-Up/Step-Down	1	85 C	-40 ¯C	Buck-Boost	10-DFN (3x3)	1.8 V	Surface Mount
Analog Devices Inc./Maxim Integrated LTC3530EMS#TRPBF	5.25 V	600 mA	Positive	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	5.5 V	Adjustable	1.8 V	300 kHz	2 MHz	Step-Up/Step-Down	1	85 C	-40 ¯C	Buck-Boost	10-MSOP	1.8 V	Surface Mount

Catalog

Wide Input Voltage Synchronous Buck-Boost DC/DC Converter

Description

The LTC3530 is a wide VINrange, highly efficient, fixed frequency, buck-boost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium-ion, two-cell alkaline or NiMH applications where the output voltage is within the battery voltage range.The LTC3530 is pin compatible with the LTC3440 buckboost DC/DC converter but adds programmable automatic Burst Mode operation and extends the VIN/VOUTrange to 1.8V. Switching frequencies up to 2MHz are programmed with an external resistor. Automatic Burst Mode operation allows the user to program the load current threshold for Burst Mode operation using a single resistor from the BURST pin to GND.Other features include 1µA shutdown, short circuit protection, programmable soft-start control, current limit and thermal shutdown. The LTC3530 is available in a thermally enhanced 10-lead (3mm × 3mm) DFN or MSOP package.ApplicationsMP3 PlayersHandheld InstrumentsDigital CamerasSmart PhonesPortable GPS UnitsMiniature Hard Disk Drive Power