9e102 Datasheet

This article provides a comprehensive overview of the BD9E102FJ datasheet, covering key specifications, features, applications, and pin configurations. 1. General Description and Core Features Go to product viewer dialog for this item.

RDS(ON)cap R sub cap D cap S open paren cap O cap N close paren end-sub 250 mΩ (Typical) Integrated power switch minimizes footprint Low-Side MOSFET

Always refer to the official manufacturer datasheet from ROHM for final design validation and the most current product status information. 9e102 datasheet

: Use a digital multimeter in continuity or resistance mode to test between the VIN pins and Ground. A reading close to 0 ohms indicates a shorted internal high-side MOSFET.

| Parameter | Conditions / Note | Min. | Typ. | Max. | Unit | | :--- | :--- | :--- | :--- | :--- | :--- | | | Operating range | 7.0 | — | 26.0 | V | | Output Voltage (VOUT) | Adjustable range | 1.0 | — | VIN × 0.7 | V | | Output Current (IOUT) | — | — | — | 1.0 | A | | Switching Frequency | — | 484 | 570 | 656 | kHz | | High-Side MOSFET RDS(on) | Typical value | — | 250 | — | mΩ | | Low-Side MOSFET RDS(on) | Typical value | — | 200 | — | mΩ | | Shutdown Current | EN = 0V, TA = 25°C | — | 0 | 2.0 | μA | | Operating Temperature | — | -40 | — | +85 | °C | This article provides a comprehensive overview of the

The , officially designated by Rohm Semiconductor as the BD9E102FJ , is a high-efficiency, synchronous buck switching regulator. It features integrated low on-resistance power MOSFETs and operates as a current-mode control step-down DC/DC converter. Widely implemented in laptop motherboards (including Dell, HP, Lenovo, and ASUS), consumer electronics, and telecom devices, this chip serves as a foundational element in modern step-down power distribution systems.

Error Amplifier Compensation. Node for phase compensation. Connect a series RC network to ground to stabilize the current feedback control loop. RDS(ON)cap R sub cap D cap S open

Engineers should be aware that the term “9e102” can occasionally refer to an unrelated SOP-8 component or a EU export control regulation. However, the primary and most relevant reference is the BD9E102FJ, which remains a strong choice for designs requiring reliable and efficient power conversion in the 7V to 26V input range.

synchronous buck converter controller, manufactured by ROHM Semiconductor . This component is widely utilized in step-down DC-DC power regulation systems, specifically within laptop motherboards for major electronics brands like HP, Dell, ASUS, and Lenovo. Comprehensive Technical Specifications

: Built-in low on-resistance MOSFETs (typically 250 mΩ for the high-side) simplify PCB design by reducing the need for external power components.