Richtek USA Inc. RT6543AGQW
MPNRT6543AGQW
Active
IC REG CTRLR BUCK PWM WQFN-20
$0.58608Price · pay online now
Packaging20-WFQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Output type | Transistor Driver |
| Mounting | Surface Mount |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 24V |
| Frequency - switching | 400kHz, 600kHz, 800kHz |
| I/O channels | 1 |
| Output phases | 1 |
| Operating temperature | -40°C ~ 125°C (TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Step-Down |
| Topology | Buck |
| Clock sync | No |
| Case | 20-WFQFN Exposed Pad |
| Control features | Current Limit, Dead Time Control, Enable, Frequency Control, Phase Control, Power Good, Soft Start |
| Output configuration | Positive |
| Synchronous rectifier | Yes |