LV58063MC

PS No.A2120-5/5

Continued from preceding page.

Pin No.

Pin name

Description

Equivalent Circuit

8

SS

Soft start terminal

Internal source current (10

μA) and external

capacitor will make soft start time.

Soft start capacitor, C6 is given by next equation,

C6 = 10

μA ×

Tss

Vref

Where, Tss : soft start time,

Vref : reference voltage

Example : soft start time = 1.2ms

C6 = 10

μA ×

1.2ms

0.8 V = 0.015μF

See FB

Considerations for the design

• Insertion of serial beads in the Schottky diode for removal of noise may cause generation of the negative voltage on SW

pin deviating from the absolute maximum rating at the SW pin, resulting in failure of normal operation. Please, do not

insert beads as above described. Instead, remove noise by Rb resistor.

• Exposed pad on the bottom side of the IC should be soldered. We cannot recommend other usages of the exposed pad.

SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using

products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition

ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.

products described or contained herein.

Regarding monolithic semiconductors, if you should intend to use this IC continuously under high temperature,

high current, high voltage, or drastic temperature change, even if it is used within the range of absolute

maximum ratings or operating conditions, there is a possibility of decrease reliability. Please contact us for a

confirmation.

SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all

semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or

malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise

to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt

safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not

limited to protective circuits and error prevention circuits for safe design, redundant design, and structural

design.

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Any and all information described or contained herein are subject to change without notice due to

product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the

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This catalog provides information as of September, 2012. Specifications and information herein are subject

to change without notice.