BD9A400MUV
2.7V～5.5V输入4A MOSFET内置 1ch同步整流 降压DC/DC转换器
BD9A400MUV
2.7V～5.5V输入4A MOSFET内置 1ch同步整流 降压DC/DC转换器
BD9A400MUV是内置低导通电阻的功率MOSFET的同步整流降压型开关稳压器。最大可输出4A的电流。凭借SLLM™控制，实现轻负载状态的良好效率特性，适用于要降低待机功耗的设备。振荡频率1MHz的高速产品，适用于小型电感。是电流模式控制DC/DC转换器，具有高速瞬态响应性能，可轻松设定相位补偿。
主要规格
特性：
ch
1
Integrated FET / Controller
Integrated FET
Topology
Buck
Synchronous / Nonsynchronous
Synchronous
Vin1(Min.)[V]
2.7
Vin1(Max.)[V]
5.5
Vout1(Min.)[V]
0.8
Vout1(Max.)[V]
3.85
Iout1(Max.)[A]
4
SW frequency(Max.)[MHz]
1
Light Load mode
Yes
EN
Yes
PGOOD
Yes
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
3x3 (t=1)
特点：
- Synchronous Single DC/DC Converter.
- SLLM™(Simple Light Load Mode)Control.
- Over Current Protection.
- Short Circuit Protection.
- Thermal Shutdown Protection.
- Under Voltage Lockout Protection.
- Adjustable Soft start Function.
- Power Good Output.
- VQFN016V3030 Package(Backside Heat Dissipation)
Reference Design / Application Evaluation Kit
-
- Evaluation Board - BD9A400MUV-EVK-001
This evaluation board has been developed for ROHM’s synchronous buck DC/DC converter customers evaluating BD9A400MUV. While accepting a power supply of 2.7-5.5V, an output of 1.8V can be produced. The IC has internal 60mΩ high-side N-channel MOSFET and 60mΩ low-side N-channel MOSFET and a synchronization frequency is of 1MHz.
