LT3503 Series

1A, 2.2MHz Step-Down Switching Regulator in 2mm x 3mm DFN

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

1A, 2.2MHz Step-Down Switching Regulator in 2mm x 3mm DFN

Part	Topology	Output Type	Voltage - Output (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Voltage - Input (Min) [Min]	Current - Output	Voltage - Input (Max) [Max]	Package / Case	Function	Mounting Type	Synchronous Rectifier	Frequency - Switching	Voltage - Output (Min/Fixed) [Min]	Number of Outputs	Output Configuration
Analog Devices Inc./Maxim Integrated LT3503EDCB#TRMPBF	Buck	Adjustable	16.2 V	85 C	-40 ¯C	6-DFN (2x3)	3.6 V	1 A	20 V	6-WFDFN Exposed Pad	Step-Down	Surface Mount		2.2 MHz	0.78 V	1	Positive
Analog Devices Inc./Maxim Integrated LT3503EDCB#TRPBF	Buck	Adjustable	16.2 V	85 C	-40 ¯C	6-DFN (2x3)	3.6 V	1 A	20 V	6-WFDFN Exposed Pad	Step-Down	Surface Mount		2.2 MHz	0.78 V	1	Positive

Catalog

1A, 2.2MHz Step-Down Switching Regulator in 2mm x 3mm DFN

Description

The LT3503 is a current mode PWM step-down DC/DC converter with an internal 1.45A power switch. The wide operating input range of 3.6V to 20V makes the LT3503 ideal for regulating power from a wide variety of sources. Its high operating frequency allows the use of tiny, low cost inductors and ceramic capacitors, resulting in low, predictable output ripple.Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. The low current (<2µA) shutdown mode provides output disconnect, enabling easy power management in battery-powered systems.ApplicationsAutomotive Battery RegulationIndustrial Control SuppliesWall Transformer RegulationDistributed Supply RegulationBattery-Powered Equipment