BD93291EFJ-E2

电源管理IC

●Description

The BD93291EFJ is a dual synchronous buck converter.

It integrates wide input voltage range (8.0V to 26V) synchronous

buck converter and low input voltage (Vout1 : 5.0V)

synchronous buck converter.

The IC also incorporates a new technology called

H 3 Reg TM , a Rohm proprietary control method which

facilitates ultra-high transient response against changes in

load. SLLM (Simple Light Load Mode) technology is also

integrated to improve efficiency when powering lighter

loads. For protection and ease of use, the IC also

incorporates soft start.

Space-saving and high efficient switching regulator can be

achieved due to built-in N-MOSFET power transistor in

HTSOP-J8 package.

●Applications

・Distributed Power System

・Pre-Regulator for Linear Regulator

●Features

・Dual Synchronous Buck Converter in small package.

・standby mode ( Istandby = 0uA )

・High Voltage Synchronous Buck Converter(Vout1)

-  Wide input range(8.0V to 26V) *absolute voltage 30V

-  H 3 Reg TM DC/DC Converter Controller included

-  Output Current 1.7A *1

-  FET on resistance High-side 0.175 Ω /Low-side 0.175 Ω

-  Internal soft-start function

-  Switching Frequency 300 to 600kHz

(*According to input/output conditions)

-  Fixed output voltage (5.0V ± 1.5%; Normal Mode)

・Low Voltage Synchronous Buck Converter(Vout2)

-  Input voltage range 5.0V(VOUT1)

-  H 3 Reg TM DC/DC Converter Controller included

-  Output Current 0.5A *1

-  FET on resistance High-side 0.25Ω/Low-side 0.25Ω

-  Internal soft-start function

-  Switching Frequency 1.5M to 2.5MHz

(*According to input/output conditions)

-  Feedback voltage (0.8V ± 1.5%; Normal Mode)

・Protection Circuits

Under Voltage Lockout Protection

Thermal Shutdown

Over Current Protection

・HTSOP-J8 Package with Exposed thermal PAD.

*1 Vout1 maximum output current capability is 2.5A, and

Vout2 maximum output current capability is 1.5A with the

optimal PCB power consumption design.

●Structure

・Silicon Monolithic Integrated Circuit

●Package

・HTSOP-J8 6.00mm x 4.90mm x 1.00mm

●PIN Configuration (TOP VIEW)

规格书BD93291EFJ-E2