BD9B333GWZ
1ch同步整流 降壓 DC/DC轉換器，2.7V～5.5V 輸入 3.0A MOSFET內建
BD9B333GWZ
1ch同步整流 降壓 DC/DC轉換器，2.7V～5.5V 輸入 3.0A MOSFET內建
BD9B333GWZ是內建低導通電阻的功率MOSFET的同步整流降壓型DC/DC轉換器。最大可輸出3A的電流。採用輕載時進行低功耗工作的獨創恒定時間控制方式，最適於要降低待機功耗的設備。振盪頻率高，適用於小型電感。是恒定時間控制DC/DC轉換器，具有高速負載回應性能。BD9B333GWZ 採用小型CSP封裝，可在大功率密度下減少貼裝面積。
Product Detail
規格:
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]
0.6
Vout1(Max.)[V]
4.4
Iout1(Max.)[A]
3
SW frequency(Max.)[MHz]
1.3
Light Load mode
Yes
EN
Yes
PGOOD
Yes
Operating Temperature (Min.)[°C]
-55
Operating Temperature (Max.)[°C]
150
Package Size [mm]
1.98x1.8 (t=0.4)
功能:
- Input Voltage Range: 2.7V to 5.5V
- Output Voltage Range: 0.6 V to VIN x 0.8 V
- Output Current: 3A (Max)
- Switching Frequency: 1.3MHz (Typ)
- High-Side MOSFET ON Resistance: 23mΩ (Typ)
- Low-Side MOSFET ON Resistance: 23mΩ (Typ)
- Standby Current: 0μA (Typ)
Reference Design / Application Evaluation Kit
-
- Evaluation Board - BD9B333GWZ-EVK-001
This EVK was developed for ROHM’s synchronous buck DC/DC converter BD9B333GWZ. The BD9B333GWZ accepts a power supply input range of 2.7V to 5.5V, and generates an output voltage from 0.6V to 0.8 x VIN using external resistors. It has a built-in 23mΩ N-channel MOSFET on both upper and lower sides that is operating frequency is 1.3MHz.
