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BD9122GUL_09

更新时间： 2024-11-28 06:41:55
品牌 Logo 应用领域
罗姆 - ROHM 稳压器开关
页数 文件大小 规格书
14页 426K
描述
Output 0.5A or Less High Efficiency Step-down Switching Regulator with Built-in Power MOSFET

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BD9122GUL_09 数据手册

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Single-chip Type with built-in FET Switching Regulator Series  
Output 0.5A or Less High Efficiency  
Step-down Switching Regulator  
with Built-in Power MOSFET  
BD9122GUL  
No.09027EAT31  
●Description  
ROHM’s high efficiency step-down switching regulator (BD9122GUL) is a power supply designed to produce a low voltage  
including 1 volts from 5/3.3 volts power supply line. Offers high efficiency with our original pulse skip control technology and  
synchronous rectifier. Employs a current mode control system to provide faster transient response to sudden change in load.  
●Features  
1) Offers fast transient response with current mode PWM control system.  
2) Offers highly efficiency for all load range with synchronous rectifier (Nch/Pch FET) and SLLMTM (Simple Light Load Mode)  
3) Incorporates soft-start function.  
4) Incorporates thermal protection and ULVO functions.  
5) Incorporates short-current protection circuit with time delay function.  
6) Incorporates shutdown function  
7) Employs WL-CSP : VCSP50L2  
●Use  
Power supply for LSI including DSP, Micro computer and ASIC  
●Absolute Maximum Ratings (Ta=25℃)  
Parameter  
Symbol  
VCC  
PVCC  
VEN  
VSW,VITH  
Pd  
Topr  
Limits  
-0.3～+7  
-0.3～+7  
Unit  
V
V
V
V
mW  
℃
℃
℃
1
1
＊
＊
VCC Voltage  
PVCC Voltage  
EN Voltage  
-0.3～+7  
-0.3～+7  
SW,ITH Voltage  
Power Dissipation  
Operating temperature range  
Storage temperature range  
Maximum junction temperature  
2
660＊  
-25～+85  
-55～+150  
Tstg  
Tjmax  
+150  
＊1  
Pd should not be exceeded.  
＊2  
Derating in done 5.28mW/℃ for temperatures above Ta=25℃, Mounted on 50mm×58mm×1.6mm Glass Epoxy PCB.  
●Operating Conditions (Ta=25℃)  
Limits  
Typ.  
3.3  
3.3  
Parameter  
Symbol  
Unit  
Min.  
2.5*4  
2.5*4  
0
Max.  
5.5  
5.5  
VCC  
0.3  
2.0  
*3  
VCC Voltage  
VCC  
PVCC  
V
V
V
A
V
*3  
PVCC Voltage  
EN Voltage  
EN  
-
-
-
SW average output  
Output voltage Setting Range  
Isw *3  
VOUT  
-
1.0  
＊3  
Pd should not be exceeded.  
＊4  
In case set output voltage 1.8V or more, VccMin = 2.7V.  
www.rohm.com  
2009.05 - Rev.A  
1/13  
© 2009 ROHM Co., Ltd. All rights reserved.  
1234567...14

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