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NN30195A

更新时间: 2024-11-26 12:26:31
品牌 Logo 应用领域
松下 - PANASONIC 稳压器控制器
页数 文件大小 规格书
27页 1160K
描述
Synchronous DC-DC Step down Regulator comprising of Controller IC and Power MOSFET

NN30195A 数据手册

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NN30195A  
VIN = 4.5 V to 5.6 V, 6 A  
Synchronous DC-DC Step down Regulator  
comprising of Controller IC and Power MOSFET  
FEATURES  
DESCRIPTION  
z High-Speed Response DC-DC Step Down Regulator  
Circuit that employs Hysteretic Control System  
NN30195A is a synchronous DC-DC Step down  
Regulator (1-ch) comprising of a Controller IC and two  
power MOSFETs and employs the hysteretic control  
system.  
z Two 25 m(Typ.)  
MOSFETs for High Efficiency at 6 A  
z SKIP (discontinuous) Mode for Light Load Efficiency  
z Up to 6 A Output Current  
By this system, when load current changes suddenly, it  
responds at high speed and minimizes the changes of  
output voltage.  
Since it is possible to use capacitors with small  
capacitance and it is unnecessary to add external parts  
for system phase compensation, this IC realizes  
downsizing of set and reducing in the number of external  
parts. Output voltage is adjustable by user.  
z Input VoltageRange : AVIN : 4.5 V to 5.6 V  
PVIN : 2.9 V to 5.6 V  
Output Voltage Range : 0.6 V to 3.5 V  
Selectable Switching Frequency 500 kHz , 1 MHz , 2  
MHz  
Maximum current is 6 A.  
z Adjustable Soft Start  
z Low Operating and Standby Quiescent Current  
APPLICATIONS  
z Open Drain Power Good Indication for Output Over ,  
Under Voltage  
High Current Distributed Power Systems such as  
HDDs (Hard Disk Drives)  
SSDs (Solid State Drives)  
PCs  
z Built-in Under Voltage Lockout (UVLO),  
Thermal Shut Down (TSD),  
Over Voltage Detection (OVD),  
Under Voltage Detection (UVD),  
Over Current Protection (OCP),  
Short Circuit Protection (SCP)  
Game consoles  
Servers  
Security Cameras  
Network TVs  
z HQFN024-A3-0404A ( Size : 4 mm X 4 mm, 0.5 mm  
pitch ), 24pin Plastic Quad Flat Non-leaded Package  
Heat Slug Down (QFN Type)  
Home Appliances  
OA Equipment etc.  
SIMPLIFIED APPLICATION  
EFFICIENCY CURVE  
VREG  
Frequency = 500 kHz  
100  
90  
PVIN  
CTL1  
CTL2  
PVIN  
80  
100k  
22μF  
PGOOD  
BST  
70  
VOUT  
AVIN  
60  
50  
40  
30  
20  
10  
0
FCCM/ Vo= 1.0V  
FCCM/ Vo= 1.2V  
FCCM/ Vo= 1.8V  
FCCM/ Vo= 3.3V  
SKIP/ Vo= 1.0V  
SKIP/ Vo= 1.2V  
SKIP/ Vo= 1.8V  
SKIP/ Vo= 3.3V  
AVIN  
10μF  
0.1μF  
1μH  
NN30195A  
2k Ω  
DCDCOUT 1.8V  
LX  
VFB  
22μF x 2  
1k Ω  
VREG  
1μF 10nF  
SS  
AGND PGND  
Notes) This application circuit is an example. The operation  
of mass production set is not guaranteed. You should  
perform enough evaluation and verification on the  
design of mass production set. You are fully  
responsible for the incorporation of the above  
application circuit and information in the design of  
your equipment.  
IOUT (A)  
VIN = 5.0 V, Vout = 1.0 V , 1.2 V , 1.8 V , 3.3 V,  
Lo = 1 µH, Co = 44 µF (22 µF x 2), Frequency = 500 kHz  
Ver. CEB  
Publication date: October 2012  
1

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