RT8458 is High Efficiency PWM Buck LED Driver Controller manufactured by Richtek.
| Part Number | Description |
|---|---|
| RT8458A | High Efficiency PWM Buck LED Driver Controller |
| RT8458D | Constant Current PWM Buck Controller |
| RT8450 | High Voltage Multi-Topology LED Driver |
| RT8450B | High Voltage Multi-Topology LED Driver |
| RT8452 | High Voltage High Current LED Driver Controller |
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.
