BD9C301FJ
4.5V～18V 输入, 3A 同步整流1ch 降压 DC/DC 转换器
BD9C301FJ
4.5V～18V 输入, 3A 同步整流1ch 降压 DC/DC 转换器
BD9C301FJ是在1个芯片中内置低导通电阻的功率MOSFET的同步整流降压DC/DC转换器。
输入电压范围广，最大可输出3A的电流。可由较少的外接部件构成，从而降低成本。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]
4.5
Vin1(Max.)[V]
18
Vout1(Min.)[V]
0.8
Vout1(Max.)[V]
12.6
Iout1(Max.)[A]
3
SW frequency(Max.)[MHz]
0.55
Light Load mode
No
EN
Yes
PGOOD
No
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
4.9x6 (t=1.65)
特点：
・ Synchronous 1 ch DC/DC converter・ Over Current protection
・ Thermal Shutdown protection
・ Under Voltage lockout protection
・ Short Circuit Protection
・ Fixed soft start function 1msec
Reference Design / Application Evaluation Kit
-
- Evaluation Board - BD9C301FJ-EVK-001
BD9C301FJ-EVK-001 Evaluation board delivers an output 3.3 volts from an input 4.5 to 18 volts using BD9C301FJ, a synchronous rectification stepdown 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.
