TCR3DMxxA series

2024-10-28

Rev.5.0

© 2023-2024

Toshiba Electronic Devices & Storage Corporation

8

11.3.

Attention in Use

●

Output Capacitors

Ceramic capacitors can be used for these devices. However, because of the type of the capacitors, there

might be unexpected thermal features. Please consider application condition for selecting capacitors. And

Toshiba recommend ceramic capacitor.

●

Mounting

The long distance between IC and output capacitor might affect phase assurance by impedance in wire and

inductor. For stable power supply, output capacitor need to mount near IC as much as possible. Also VIN

and GND pattern need to be large and make the wire impedance small as possible.

●

Permissible Loss

Please have enough design patterns for expected maximum permissible loss. And under consideration of

surrounding temperature, input voltage, and output current etc., we recommend proper dissipation ratings

for maximum permissible loss; in general maximum dissipation rating is 70 to 80 %.

●

Over current Protection and Thermal shut down function

Over current protection and Thermal shut down function are designed in these products, but these are not

designed to constantly ensure the suppression of the device within operation limits. Depending on the

condition during actual usage, it could affect the electrical characteristic specification and reliability. Also

note that if output pins and GND pins are not completely shorted out, these products might be break down.

When using these products, please read through and understand the concept of dissipation for absolute

maximum ratings from the above mention or our ‘Semiconductor Reliability Handbook’. Then use these

products under absolute maximum ratings in any condition. Furthermore, Toshiba recommend inserting

failsafe system into the design.