LT3503EDCB#TRMPBF

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Analog Devices Inc./Maxim Integrated

1A, 2.2MHZ STEP-DOWN SWITCHING REGULATOR IN 2MM X 3MM DFN

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LT3503EDCB#TRMPBF

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Analog Devices Inc./Maxim Integrated

1A, 2.2MHZ STEP-DOWN SWITCHING REGULATOR IN 2MM X 3MM DFN

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT3503 Series

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

Technical Specifications

Parameters and characteristics for this part

Specification	LT3503EDCB#TRMPBF

Current - Output	1 A
Frequency - Switching	2.2 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	6-WFDFN Exposed Pad
Package Length	2 mm
Package Name	6-DFN
Package Width	3 mm
Synchronous Rectifier	No
Topology	Buck
Voltage - Input (Max)	20 V
Voltage - Input (Min)	3.6 V
Voltage - Output (Max)	16.2 V
Voltage - Output (Min/Fixed)	0.78 V

LT3503 Series

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

Part	Output Configuration	Number of Outputs	Voltage - Output (Min/Fixed)	Frequency - Switching	Synchronous Rectifier	Mounting Type	Function	Package / Case	Voltage - Input (Max)	Current - Output	Voltage - Input (Min)	Package Width	Package Name	Package Length	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Output (Max)	Output Type	Topology
Analog Devices Inc./Maxim Integrated LT3503EDCB#TRMPBF	Positive	1	0.78 V	2.2 MHz	No	Surface Mount	Step-Down	6-WFDFN Exposed Pad	20 V	1 A	3.6 V	3 mm	6-DFN	2 mm	85 °C	-40 °C	16.2 V	Adjustable	Buck
Analog Devices Inc./Maxim Integrated LT3503EDCB#TRPBF	Positive	1	0.78 V	2.2 MHz	No	Surface Mount	Step-Down	6-WFDFN Exposed Pad	20 V	1 A	3.6 V	3 mm	6-DFN	2 mm	85 °C	-40 °C	16.2 V	Adjustable	Buck

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R530 Reliability Data

LT3503EDCB#TRMPBF | Datasheet