BD9E303UEFJ-LB(H2)
7.0V～36V输入、3.0A、内置MOSFET 1ch 同步整流 降压型DC-DC转换器
BD9E303UEFJ-LB(H2)
7.0V～36V输入、3.0A、内置MOSFET 1ch 同步整流 降压型DC-DC转换器
该产品是能够保证向工业设备市场长期供应的产品，而且是非常适用于这些应用领域的产品。
BD9E303EFJ-LB是一款内置低导通电阻功率MOSFET的同步整流降压型开关稳压器。该产品支持的输入电压范围很宽(7V～36V)，并且可以生成5.0V等低电压。由于是电流模式控制的DC-DC转换器，因此具有高速瞬态响应性能，也很容易进行相位补偿设置。
本IC是为提高生产效率而对本系列产品中的BD9E303EFJ-LB变更生产线后形成的型号，在新项目选型时，建议选择该型号，在技术规格书中的保证特性并没有差异。此外，由于文档和设计模型等也没有差异，因此除非另有说明，ROHM将公开BD9E303EFJ-LB的数据。
主要规格
特性：
ch
1
Integrated FET / Controller
Integrated FET
Topology
Buck
Synchronous / Nonsynchronous
Synchronous
Vin1(Min.)[V]
7
Vin1(Max.)[V]
36
Vout1(Min.)[V]
1
Vout1(Max.)[V]
28.8
Iout1(Max.)[A]
3
SW frequency(Max.)[MHz]
0.3
Light Load mode
No
EN
Yes
PGOOD
No
Operating Temperature (Min.)[°C]
Tj=-40
Operating Temperature (Max.)[°C]
Tj=150
Package Size [mm]
4.9x6 (t=1)
特点：
- Long Time Support Product for Industrial Applications.
- Synchronous single DC/DC converter.
- Over-Current Protection.
- Short Circuit Protection.
- Thermal Shutdown Protection.
- Under voltage Lockout Protection.
- Soft Start.
- HTSOP-J8 package (Exposed Pad).
Reference Design / Application Evaluation Kit
-
- Evaluation Board - BD9E303EFJ-EVK-001
This EVK is using not BD9E303UEFJ-LB, but BD9E303EFJ-LB. BD9E303EFJ-EVK-001 Evaluation board delivers an output 5.0 volts from an input 7.0 to 36 volts using BD9E303EFJ-LB, a synchronous rectification step-down DC/DC converter integrated circuit, with output current rating of maximum 3A. The output voltage can be set by changing the external parts of circuit and the loop-response characteristics also can be adjusted by the phase compensation circuit.
