The BU9006GUZ is a synchronous rectifier step-down DC-DC converter with an input voltage range of 2.5V~4.5V, an output voltage range of 0.95V~4.5V (REF input voltage range of 0.5V~VIN), current mode control, an integrated output FET synchronous rectifier step-down DC-DC converter, a switching frequency of 2.0MHz typical, a maximum output current of 750mA (switching regulator part) and 1200mA (bypass switch part), and a PchFET on resistance at bypass mode of (70mohm) typical. The package size is 1.6mm x 1.6mm, t=0.4mm MAX, WLCSP.
The BU9006GUZ is a silicon monolithic integrated circuit that provides a synchronous rectifier step‑down DC‑DC conversion with an input voltage range of 2.5 V to 4.5 V and an output range of 0.95 V to 4.5 V. It features current‑mode control, a typical 2.0 MHz switching frequency, and integrated output FETs.
The document includes electrical characteristics, pin layout, block diagram, and operation notes such as absolute maximum ratings, thermal design guidance, and handling of strong electromagnetic fields. It also contains legal notices and contact information for ROHM.
| Input voltage range | 2.5 V ~ 4.5 V |
|---|---|
| Output voltage range | 0.95 V ~ 4.5 V |
| Switching frequency (typ.) | 2.0 MHz |
| Maximum output current (regulator part) | 750 mA |
| Maximum output current (bypass switch part) | 1200 mA |
| Package size | 1.6 mm × 1.6 mm, t = 0.4 mm |
The device operates with an input voltage from 2.5 V to 4.5 V.
The typical switching frequency is 2.0 MHz.
The switching regulator part can deliver up to 750 mA of output current.
It uses a 1.6 mm × 1.6 mm WLCSP package with a maximum thickness of 0.4 mm.