ADI LT3502IMS#PBF

降压降压3V40V500mA

Overview

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.

Features

Tube Package
Positive Output Configuration
Buck Topology
Adjustable Output Type
1 Number of Outputs
3V Voltage - Input (Min)
40V Voltage - Input (Max)
0.8V Voltage - Output (Min/Fixed)
36V Voltage - Output (Max)
500mA Current - Output
1.1MHz Frequency - Switching
No Synchronous Rectifier
Surface Mount Mounting Type