BD91364BMUU
2.9V～5.5V输入，5A MOSFET内置 1ch同步整流降压DC/DC转换器
BD91364BMUU
2.9V～5.5V输入，5A MOSFET内置 1ch同步整流降压DC/DC转换器
罗姆的高效率降压开关稳压器BD91364BMUU是通过2.9V ～ 5.5V的电源线生成0.8V～3.3V等低电压的降压转换器。通过PFM/PWM自动切换，实现了全负载领域的高效化。采用恒定时间控制方式，实现了负载突变时的高速瞬态响应。
主要规格
特性：
ch
1
Integrated FET / Controller
Integrated FET
Topology
Buck
Synchronous / Nonsynchronous
Synchronous
Vin1(Min.)[V]
2.9
Vin1(Max.)[V]
5.5
Vout1(Min.)[V]
0.8
Vout1(Max.)[V]
4.4
Iout1(Max.)[A]
5
SW frequency(Max.)[MHz]
1.7
Light Load mode
Yes
EN
Yes
PGOOD
Yes
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
105
Package Size [mm]
4x4 (t=0.5)
特点：
- Fast transient response with On-time control system.
- High efficiency for all load range with synchronous
rectifier (Nch/Nch FET) and adaptive PFM/PWM system. - Adjustable Soft-start function.
- Thermal and UVLO protection.
- Short-circuit current protection with timer latch.
- Shutdown function.
