BD9S109NUX-C
车载用 2.7V～5.5V输入 1A 单通道 同步整流降压型DC-DC转换器
BD9S109NUX-C
车载用 2.7V～5.5V输入 1A 单通道 同步整流降压型DC-DC转换器
BD9S109NUX-C是一款内置低导通电阻功率MOSFET的同步整流降压型DC-DC转换器。该产品可输出最大1A的电流，其开关频率高达2.2MHz，因此允许使用小型电感器。该产品采用电流模式控制，具有高速瞬态响应性能。另外，还内置有相位补偿电路，仅用很少的外置元器件即可构建应用产品。
主要规格
功能安全:
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]
5.5
Iout1(Max.)[A]
1
SW frequency setting (Max.)[MHz]
2.2
Light Load mode
No
EN
Yes
PGOOD
Yes
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
125
Package Size [mm]
2.0x2.0 (t=0.6)
Common Standard
AEC-Q100 (Automotive Grade)
特点：
- AEC-Q100 Qualified(Grade 1)
- Single Synchronous Buck DC/DC Converter
- Adjustable Soft Start Function
- Output Discharge Function
- Power Good Output
- Input Under Voltage Lockout Protection (UVLO)
- Short Circuit Protection (SCP)
- Output Over Voltage Protection (OVP)
- Over Current Protection (OCP)
- Thermal Shutdown Protection (TSD)
参考设计 / 应用评估套件
-
- Evaluation Board - BD9S109NUX-TSB-001
This Evaluation Board was developed for ROHM's single Synchronous buck DC/DC converter BD9S109NUX-C. It is a synchronous buck DC/DC converter with built-in low On Resistance power MOSFETs. BD9S109NUX-C accepts a power supply input range of 2.7 V to 5.5 V and generates a maximum output current of 1 A. Small inductor is applicable due to high switching frequency of 2.2 MHz. It is a current mode control DC/DC Converter and features high-speed transient response. It has a built-in phase compensation circuit. Applications can be created with a few external components.
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