LT3502LT3502A Series

1.1MHz/2.2MHz, 500mA Step-Down Regulators in 2mm × 2mm DFN and MS10

Catalog

1.1MHz/2.2MHz, 500mA Step-Down Regulators in 2mm × 2mm DFN and MS10

Part	Voltage - Input (Min) [Min]	Voltage - Output (Max)	Number of Outputs	Function	Mounting Type	Topology	Current - Output	Output Type	Supplier Device Package	Voltage - Output (Min/Fixed)	Output Configuration	Frequency - Switching	Package / Case	Package / Case [x]	Package / Case [x]	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Max) [Max]
Analog Devices LT3502IMS#PBF	3 V	36 V	1	Step-Down	Surface Mount	Buck	500 mA	Adjustable	10-MSOP	0.8 V	Positive	1.1 MHz	10-MSOP 10-TFSOP	3 mm	0.118 in	-40 °C	125 ¯C
Analog Devices LT3502AIDC#TRPBF	3 V		1	Step-Down	Surface Mount	Buck	500 mA	Adjustable	8-DFN (2x2)	0.8 V	Positive	2.25 MHz	8-WFDFN Exposed Pad			-40 °C	125 ¯C	32 V
Analog Devices LT3502EDC#TRPBF	3 V	36 V	1	Step-Down	Surface Mount	Buck	500 mA	Adjustable	8-DFN (2x2)	0.8 V	Positive	1.1 MHz	8-WFDFN Exposed Pad			-40 °C	125 ¯C
Analog Devices LT3502IDC#TRPBF	3 V	36 V	1	Step-Down	Surface Mount	Buck	500 mA	Adjustable	8-DFN (2x2)	0.8 V	Positive	1.1 MHz	8-WFDFN Exposed Pad			-40 °C	125 ¯C

Catalog

1.1MHz/2.2MHz, 500mA Step-Down Regulators in 2mm × 2mm DFN and MS10

Key Features

• 3V to 40V Input Voltage Range

• 500mA Output Current

• Switching Frequency: 2.2MHz (LT3502A), 1.1MHz (LT3502)

• 800mV Feedback Voltage

• Short-Circuit Robust

• Soft-Start

• Low Shutdown Current: <2μA

• Internally Compensated

• Internal Boost Diode

• Thermally Enhanced 2mm × 2mm 8-Lead DFN and 10-Lead MS10 Package

Description

The LT3502/LT3502A are current mode PWM step-down DC/DC converters with an internal 500mA power switch, in tiny 8-lead 2mm × 2mm DFN and 10-lead MS10 packages. The wide input voltage range of 3V to 40V makes the LT3502/LT3502A suitable for regulating power from a wide variety of sources, including 24V industrial supplies and automotive batteries. Its high operating frequency allows the use of tiny, low cost inductors and capacitors, resulting in a very small solution. Constant frequency above the AM band avoids interfering with radio reception, making the LT3502A particularly suitable for automotive applications.Cycle-by-cycle current limit and frequency foldback provide protection against shorted outputs. Soft-start and frequency foldback eliminates input current surge during start-up. DA current sense provides further protection in fault conditions. An internal boost diode reduces component count.ApplicationsAutomotive SystemsBattery-Powered EquipmentWall Transformer RegulationDistributed Supply Regulation