Analog Devices Inc. LT3942 Demo Board DC2404A
Analog Devices Inc. LT3942 Demo Board DC2404A features the LT3942 36V, 2A Synchronous Buck-Boost Converter and LED driver. The DC2404A drives a single string of LEDs up to 14V at 1A when VIN is between 9V and 36V and will run down to 3VIN with reduced ILED. The DC2404A Demo Board runs at 2MHz switching frequency with spread spectrum frequency modulation (SSFM) disabled.
The under-voltage lockout can be adjusted on DC2404A with a few simple resistor choices. There is a small ferrite bead EMI filter on the input and output of DC2404A. These filters, combined with proper board layout and SSFM, are effective in reducing EMI. The recommended layout and four-layer PCB thickness of the DC2404A are suggested for low EMI applications.
Supported Device
Analog Devices Inc. LT3942 Synchronous Buck-Boost Converter
4-switch synchronous buck-boost LED driver that can regulate the LED string current up to 34V.
Test Procedure Setup
Published: 2020-03-09
| Updated: 2022-03-11