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LED boost driver 50mA multiple channel HIGH efficiency

Other Parts Discussed in Thread: LP8866-Q1, TPS61163

Hello TI;

We want to drive 50mA 8 LEDs.The input voltage is 24V. Output would be around 27V and the drive strength does not differ, we keep it constant.

We are having troubles finding a driver thats highly efficient. The datasheets do rarely provide specific data. They usually give efficiency data at higher currents and we dont want it to drop down to some 60% at low currents as 50mA. Datasheets lack this data.

Do you have anything that you could recommend to us ? 85%-90% is considered ok but higher is better.