The BD9011EKN/KV is a 2-ch synchronous controller with rectification switching for enhanced power management efficiency. It supports a wide input range, enabling low power consumption ecodesign for an array of electronics.
The BD9011 series are 2‑channel synchronous controllers that provide high‑efficiency step‑down regulation. They support a wide input voltage range, precision voltage references, and built‑in sequencing and protection functions, making them suitable for a variety of electronics such as car audio, TVs, set‑top boxes, and portable media players.
The document includes detailed electrical characteristics, pin configurations for the HQFN36V and VQFP48C packages, block diagrams, and example application circuits. It also provides ordering information and legal notices from ROHM Co., Ltd.
| Input voltage range | 3.9 V to 30 V |
|---|---|
| Precision voltage reference | 0.8 V ±1 % |
| Variable switching frequency | 250 kHz to 550 kHz |
| Over‑current protection | Built‑in OFF latch and auto‑remove OCP |
| Package options | HQFN36V, VQFP48C |
The controllers operate from 3.9 V up to 30 V input.
The switching frequency is variable between 250 kHz and 550 kHz.
The device includes an OFF latch, auto‑remove over‑current protection, UVLO lock‑out, and temperature shutdown.
It is offered in HQFN36V and VQFP48C packages.