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NN30295A

更新时间: 2024-09-15 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 1087K
描述
DC-DC Step down Regulator comprising of Controller IC and Power MOSFET with I2C Interface

NN30295A 数据手册

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NN30295A  
VIN = 4.5 V to 5.6 V, 6 A Synchronous  
DC-DC Step down Regulator comprising of Controller IC  
and Power MOSFET with I2C Interface  
FEATURES  
DESCRIPTION  
NN30295A 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 High-Speed Response DC-DC Step Down Regulator  
Circuit that employs Hysteretic Control System  
z Two 25 m(Typ.)  
MOSFETs for High Efficiency at 6 A  
zMode Selection Option via I2C:  
(1) Pulse Skip Mode (PSM) with coast mode function  
for high light load efficiency  
(2) Forced Continuous Conduction Mode (FCCM) for  
quick load transient response  
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 Up to 6 A Output Current  
z Input VoltageRange : AVIN : 4.5 V to 5.6 V,  
PVIN : 3.1 V to 5.6 V, VDD : 1.7 V to 3.6 V  
Output Voltage Range : 0.6 V to 3.5 V  
Selectable Switching Frequency 500 kHz to 2 MHz  
( 7 steps ) using I2C : Default 1MHz  
Maximum current is 6 A.  
APPLICATIONS  
High Current Distributed Power Systems such as  
HDDs (Hard Disk Drives)  
SSDs (Solid State Drives)  
PCs  
z Adjustable Soft Start  
z Low Operating and Standby Quiescent Current  
z Open Drain Power Good Indication for Output Over ,  
Under Voltage  
Game consoles  
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)  
Servers  
Security Cameras  
Network TVs  
Home Appliances  
OA Equipment etc.  
zHQFN024-A3-0404A ( Size : 4 mm X 4 mm, 0.5 mm  
pitch ), 24pin Plastic Quad Flat Non-leaded Package  
Heat Slug Down (QFN Type)  
SIMPLIFIED APPLICATION  
EFFICIENCY CURVE  
VDD  
VREG  
NN30295A Efficiency 500kHz  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
EN  
SCL SDA  
PGOOD  
VDD  
PVIN  
PVIN  
AVIN  
100k  
BST  
VOUT  
AVIN  
0.1μF  
1.0μH  
NN30295A  
FCCM_Vout=1.2V  
DCDCOUT  
1.0 V  
FCCM_Vout=1.8V  
FCCM_Vout=3.3V  
SKIP_Vout=1.2V  
SKIP_Vout=1.8V  
SKIP_Vout=3.3V  
LX  
1.5k Ω  
1k Ω  
22μF x 2  
VFB  
SS  
10nF  
AGND PGND  
0.001  
0.01  
0.1  
1
10  
Load Current[A]  
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.  
Condition )  
IN = 5.0 V, Vout = 1.2 V , 1.8 V , 3.3 V,  
Lo = 1 µH, Co = 44 µF (22 µF x 2), Frequency = 500 kHz  
V
Ver. BEB  
Publication date: October 2012  
1

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