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The RT8458 is a PWM controller with an integrated high side floating gate driver. It is used for step down converters by well controlling the external MOSFET and regulating a constant output current.

The output duty cycle of the RT8458 can be up to 100% for wider input voltage application, such as E27 and PAR30 off-line LED lighting products.• Low Cost and Efficient Buck Converter Solution• E27, PAR30, Offline LED Lights

TSOT-23-6Typical Applications Circuit

Figure 2. For High PF Application

关键词： 电子电路图，RT8458 LED 驱动