bd9s300muf-凯发线上登陆下载网址
车载用 内置mosfet 2.7v～5.5v 输入,3a 1ch同步整流 降压 dc/dc转换器bd9s300muf-c是内置低导通电阻的功率mosfet的同步整流降压型dc/dc转换器。最大可输出3a的电流。凭借sllm™控制，实现轻负载状态的良好效率特性，适用于降低设备的待机功耗。具有2.2mhz高速开关频率，适用于小型电感。具有基于电流模式控制的高速瞬态响应性能，可轻松设定相位补偿。还可与外部脉冲同步。
8-channel power tree reference design
for automotive adas and info-display
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]
4.4
iout1(max.)[a]
3
sw frequency(max.)[mhz]
2.2
light load mode
yes
en
yes
pgood
yes
operating temperature (min.)[°c]
-40
operating temperature (max.)[°c]
125
package size [mm]
3x3 (t=1)
common standard
aec-q100 (automotive grade)
特点：
- sllm™ (simple light load mode) control
- aec-q100 qualified (grade 1)
- single synchronous buck dc/dc converter
- adjustable soft start function
- power good output
- input under voltage lockout protection
- short circuit protection
- output over voltage protection
- over current protection
- thermal shutdown protection
- wettable flank qfn package
reference design / application evaluation kit
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- evaluation board - bd9s300muf-tsb-001
this evaluation board was developed for rohm’s single synchronous buck dc/dc converter bd9s300muf-c. it is a synchronous buck dc/dc converter with built-in low on resistance power mosfets. the bd9s300muf-c accepts a power supply input range of 2.7v to 5.5v and generates a maximum output current of 3a.
| user guide |
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- reference design - refrpt001
- cispr25 class5 compliant 8 rails power tree reference design for automotive adas/infotainment application
this reference design is a power tree solution board developed for infotainment devices such as automotive clusters and center information displays and for ecus for adas application. the power system that can support functional safety is integrated on a single board to achieve the optimal configuration as a power tree. excellent emc performance that meets cispr25 class 5 even at all power supply rails are enabled, and reduces heat generation of each device by distributing high-efficiency dcdcs. in addition, two supervisor ics with self-diagnosis functions can monitor the output of all power rails and contribute to a higher level of functional safety.
- automotive infotainment/adas 8-channels power tree reference design
- verified to satisfy emc cispr 25 class 5 standard without common mode filter
- in order to avoid the am radio frequency bands all dc/dc converters operate at a switching frequency of 2.2 mhz or higher.
- thermal characteristics tested
- voltage monitoring for 8-channel power tree to improve the functional safety asil level
- space saving by integrating multiple power trees
