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BD9011EKN_08 PDF预览

BD9011EKN_08

更新时间: 2024-09-26 06:41:55
品牌 Logo 应用领域
罗姆 - ROHM 稳压器开关控制器
页数 文件大小 规格书
30页 1468K
描述
Step-down, High-efficiency Switching Regulators (Controller type)

BD9011EKN_08 数据手册

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TECHNICAL NOTE  
Large Current External FET Controller Type Switching Regulator  
Step-down,  
High-efficiency  
Switching Regulators  
(Controller type)  
BD9011EKN , BD9011KV , BD9775FV  
BD9011EKN, BD9011KV  
Overview  
The BD9011EKN/KV is a 2-ch synchronous controller with rectification switching for enhanced power management efficiency.  
It supports a wide input range, enabling low power consumption ecodesign for an array of electronics.  
Features  
1) Wide input voltage range: 3.9V to 30V  
2) Precision voltage references: 0.8V±1%  
3) FET direct drive  
4) Rectification switching for increased efficiency  
5) Variable frequency: 250k to 550kHz (external synchronization to 550kHz)  
6) Built-in selected OFF latch and auto remove over current protection  
7) Built-in independent power up/power down sequencing control  
8) Make various application , step-down , step-up and step-up-down  
9) Small footprint packages: HQFN36V, VQFP48C  
Applications  
Car audio and navigation systems, CRTTVLCDTVPDPTVSTBDVDand PC systemsportable CD and DVD players,  
etc.  
Absolute Maximum Ratings (Ta=25)  
Parameter  
EXTVCC Voltage  
VCCCL1,2 Voltage  
CL1,2 Voltage  
Symbol  
EXTVCC  
VCCCL1,2  
CL1,2  
Parameter  
Symbol  
COMP1,2  
DET1,2  
Rating  
34 *1  
34 *1  
34  
Unit  
V
Rating  
VREG5  
Unit  
V
COMP1,2 Voltage  
DET1,2 Voltage  
RTSYNC Voltage  
V
V
RTSYNC  
SW1,2 Voltage  
BOOT1,2 Voltage  
SW1,2  
34 *1  
40 *1  
V
0.875 *2  
HQFN36V)  
W
BOOT1,2  
V
Power Dissipation  
Pd  
BOOT1,2-SW1,2  
Voltage  
BOOT1,2-SW1,2  
STB, EN1,2  
7 *1  
VCC  
7
V
V
V
1.1 *2  
VQFP48C)  
W
STB, EN1,2 Voltage  
Operating  
temperature  
VREG5,5A  
Topr  
VREG5,5A  
VREG33  
-40 to +105  
VREG33  
VREG5  
VREG5  
V
V
Storage temperature  
Junction temperature  
Tstg  
Tj  
-55 to +150  
+150  
SS1,2FB1,2  
SS1,2FB1,2  
*1 Regardless of the listed rating, do not exceed Pd in any circumstances.  
*2 Mounted on a 70mm x 70mm x 0.8mm glass-epoxy board. De-rated at 7.44mW/℃(HQFN36Vor 8.8mW/℃(VQFP48C)  
above 25.  
Sep. 2008  

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