Secondary Power Supplies for Automotive Applications: BD905xx Series

Secondary Power Supplies for Automotive Applications: BD905xx Series

Overview | Highlight 1 | Highlight 2 | Highlight 3 | Lineup | Applications

Overview

In recent years the automotive market has seen a greater demand for improved fuel economy and lower emissions in the automotive market, while at the same time the power consumption of MCUs and CPUs has risen dramatically due to the increased computerization and sophistication of today's vehicles. For example, a growing number of cars are integrating DDR memory for image processing and other functions.
The BD905xx series of synchronous rectification buck DC/DC converters was designed to efficiently supply power to a variety of automotive applications, contributing to greater energy savings. In addition, phase compensation and feedback resistance is built in, reducing the number of external parts required, reducing mounting area significantly.

Package
Package

Highlight 1: Space-saving form factor

Built-in phase compensation and feedback resistors minimize the number of external parts, reducing mounting costs while saving space.

Space-saving form factor

Highlight 2: Low-loss operation simplifies thermal design

Loss is 10 times lower than LDOs, minimizing heat generation during operation. This simplifies thermal design and makes them ideal for power supplies for DDR memory and MCUs in automotive applications.

Low-loss operation simplifies thermal design

Highlight 3: High efficiency performance contributes to greater energy savings

Synchronous rectification is utilized for high efficiency (approx. 90%) operation, providing the energy savings required by the automotive market. In addition, a Light Load Mode is built in, ensuring optimum efficiency across the entire load range.

High efficiency performance contributes to greater energy savings

Lineup

Output Current Output Voltage
1.2V 1.5V 1.8V
2A NEW
BD90522EFJ-C
NEW
BD90525EFJ-C
NEW
BD90528EFJ-C
3A NEW
BD90532EFJ-C
NEW
BD90535EFJ-C
NEW
BD90538EFJ-C

Applications

- Automotive systems
- Car audio/navigation
- TVs
- Other electronic equipment

Applications

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