NN30320A Datasheet, PDF (32/33 Pages) Panasonic Semiconductor – 3 A Synchronous DC-DC Step down Regulator

Doc No. TA4-EA-06187
Revision. 2
Product Standards
NN30320A
IMPORTANT NOTICE
1. When using the IC for new models, verify the safety including the long-term reliability for each product.
2. When the application system is designed by using this IC, please confirm the notes in this book.
Please read the notes to descriptions and the usage notes in the book.
3. This IC is intended to be used for general electronic equipment.
Consult our sales staff in advance for information on the following applications: Special applications in which exceptional
quality and reliability are required, or if the failure or malfunction of this IC may directly jeopardize life or harm the human body.
Any applications other than the standard applications intended.
(1) Space appliance (such as artificial satellite, and rocket)
(2) Traffic control equipment (such as for automotive, airplane, train, and ship)
(3) Medical equipment for life support
(4) Submarine transponder
(5) Control equipment for power plant
(6) Disaster prevention and security device
(7) Weapon
(8) Others : Applications of which reliability equivalent to (1) to (7) is required
Our company shall not be held responsible for any damage incurred as a result of or in connection with the IC being used for
any special application, unless our company agrees to the use of such special application.
However, for the IC which we designate as products for automotive use, it is possible to be used for automotive.
4. This IC is neither designed nor intended for use in automotive applications or environments unless the IC is designated by our
company to be used in automotive applications.
Our company shall not be held responsible for any damage incurred by customers or any third party as a result of or in
connection with the IC being used in automotive application, unless our company agrees to such application in this book.
5. Please use this IC in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled
substances, including without limitation, the EU RoHS Directive. Our company shall not be held responsible for any damage
incurred as a result of our IC being used by our customers, not complying with the applicable laws and regulations.
6. Pay attention to the direction of the IC. When mounting it in the wrong direction onto the PCB (printed-circuit-board),
it might be damaged.
7. Pay attention in the PCB (printed-circuit-board) pattern layout in order to prevent damage due to short circuit between pins.
In addition, refer to the Pin Description for the pin configuration.
8. Perform visual inspection on the PCB before applying power, otherwise damage might happen due to problems such as
solder-bridge between the pins of the IC. Also, perform full technical verification on the assembly quality, because the same
damage possibly can happen due to conductive substances, such as solder ball, that adhere to the IC during transportation.
9. Take notice in the use of this IC that it might be damaged when an abnormal state occurs such as output pin-VCC short
(Power supply fault), output pin-GND short (Ground fault), or output-to-output-pin short (load short). Safety measures such as
installation of fuses are recommended because the extent of the above-mentioned damage will depend on the current
capability of the power supply.
10. The protection circuit is for maintaining safety against abnormal operation. Therefore, the protection circuit should not work
during normal operation.
Especially for the thermal protection circuit, if the area of safe operation or the absolute maximum rating is momentarily
exceeded due to output pin to VCC short (Power supply fault), or output pin to GND short (Ground fault), the IC might be
damaged before the thermal protection circuit could operate.
11. Unless specified in the product specifications, make sure that negative voltage or excessive voltage are not applied to the
pins because the IC might be damaged, which could happen due to negative voltage or excessive voltage generated during
the ON and OFF timing when the inductive load of a motor coil or actuator coils of optical pick-up is being driven.
12. Product which has specified ASO (Area of Safe Operation) should be operated in ASO
13. Verify the risks which might be caused by the malfunctions of external components.
14. Connect the metallic plates (fins) on the back side of the IC with their respective potentials (AGND, PVIN, LX). The thermal
resistance and the electrical characteristics are guaranteed only when the metallic plates (fins) are connected with their
respective potentials.
Established : 2013-06-20
Revised : 2015-02-08
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