38V regulator module targets LED drivers
The Power by Linear LTM8005 μModule includes the controller, power switch, Schottky diode and current sense resistor in a 9mm x 11.25mm x 2.22mm BGA package. It operates from a 5V to 38V input voltage range and can deliver up to 1.6A of regulated current at an output voltage of up to 38V. An Inductor is external, enabling the LTM8005 to be configured for different operating modes including boost, buck-boost, buck and SEPIC topologies with a coupled inductor.
A high reliability H-grade version guarantees operation from –40°C to 150°C for automotive applications while the E and I grades operate from –40°C to 125°C for industrial lighting.
The operating frequency is adjustable from 100kHz to 1MHz, and built-in spread spectrum frequency modulation improves electromagnetic compatibility performance. The brightness of the LEDs can be controlled by the analogue CTRL pin and by PWM dimming with a range up to 3,000:1.
It provides safety features such as output disconnect short-circuit protection, open LED protection, programmable input current limit, as well as, input and output current reporting.
The LTM8005 is available now from $9.95 in BGA packaging.
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