Linear Technology LTM8042 and LTM8042-1 DC/DC uModule LED driver

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Linear Technology has introduced the LTM8042 and LTM8042-1, DC/DC uModule LED drivers for strings of up to eight white or nine red LEDs. Capable of operating as boost, buck or buck boost with 3 to 30 V input range, each device is a complete LED driver in a land grid array package.

The devices have 0.5% output current line regulation accuracy and can withstand up to 40 V input transients.

The LTM8042 sources up to 1 A of current, whereas the LTM8042-1 sources up to 350 mA. Each features True Color PWM dimming with 3000:1 ratio or analog dimming with 10:1 ratio.

Their compact, robust and complete solution permit a quick design-to-fabrication of LED string driver circuits in applications such as industrial illumination, backlight displays, scanners and motor vehicle as well as avionics lighting.

They are switching regulator LED drivers with accurate output current line regulation, suitable for driving LEDs or for general-purpose current sourcing. Inductors, capacitors, regulator IC and compensation circuitry are enclosed and protected in a plastic package resembling an IC. These devices are pin compatible with each other.