BD91x Series Step-Down Regulators


ROHM's current-mode step-down regulators for point-of-load applications

ROHM’s BD91x series of switching regulators were designed for optimum efficiency. SLLM™ (Simple Light Load Mode) and synchronous rectification is utilized for low power consumption with high efficiency under all load conditions - even during suspension (non-switching) mode.

Additional features include integrated low ON-resistance power MOSFETs, a current sense/feedback loop that quickly senses load current variations for reduced voltage variation, multiple protection circuits, and a highly integrated structure that minimizes the number of external components required while reducing inductor size. This series is offered in a variety of compact package types, ensuring compatibility with applications of all types.


CMOS LDO Regulators High Efficiency Current Mode Switching Regulators

BD91x Series

Manufacturer Part Number Description Available Quantity Datasheets
BD9104FVM-TR IC REG BUCK SYNC 3.3V 0.9A 8MSOP 4577
BD9106FVM-TR IC REG BUCK SYNC ADJ 0.8A 8MSOP 5494
BD9107FVM-TR IC REG BUCK SYNC ADJ 1.2A 8MSOP 3001
BD9109FVM-TR IC REG BUCK SYNC 3.3V 0.8A 8MSOP 4832
BD9110NV-E2 IC REG BUCK SYNC ADJ SON008V5060 3846
BD9111NV-E2 IC REG BUCK SYNC 3.3V 2A 8SON 5361
BD9130EFJ-E2 IC REG BUCK SYNC ADJ 2A 8HTSOP 4804
BD9130NV-E2 IC REG BUCK SYNC ADJ 2A 8SON 7321
BD9132MUV-E2 IC REG BUCK SYNC ADJ 3A 20VQFN 2453
BD9134MUV-E2 IC REG BUCK SYNC 3.3V 3A 20VQFN 3238
BD91361MUV-E2 IC REG BUCK SYNC ADJ 4A 20VQFN 2495
BD9137MUV-E2 IC REG BUCK SYNC ADJ 4A 20VQFN 2355
BD9139MUV-E2 IC REG BUCK SYNC ADJ 3A 16VQFN 2310
BD9150MUV-E2 IC REG BUCK SYNC 1.5A DL 20VQFN 5089
BD9161FVM-TR IC REG BUCK SYNC ADJ 0.6A 8MSOP 1136