The document describes the features and characteristics of a step down DC/DC converter controller IC for notebook PCs.
The BD95371MUV is a step‑down DC/DC converter controller IC designed for notebook PCs. It integrates a high‑efficiency regulator with selectable switching frequency and includes built‑in protection features.
The document contains absolute maximum ratings, operating conditions, detailed electrical characteristics, pin‑out diagrams, block diagrams, and practical operation notes such as grounding, thermal design, and PCB layout recommendations.
| Switching Frequency | 200 kHz – 500 kHz (variable) |
|---|---|
| Input Voltage (VCG) | 4.5 V – 5.5 V |
| Operating Temperature Range | -10 °C to +100 °C |
| Maximum Junction Temperature | +150 °C |
| Power Dissipation (Pdi) | 0.34 W |
| VCC Bias Current | 1.5 µA – 1.8 µA |
| VCC Standby Current | 0 µA – 10 µA (EN=0 V) |
| Typical Output Voltage (VOUT) | 0.743 V – 0.757 V |
The device operates with an input voltage (VCG) from 4.5 V to 5.5 V.
The typical output voltage (VOUT) is between 0.743 V and 0.757 V.
The switching frequency is variable from 200 kHz to 500 kHz.