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XCL219/XCL220

Series

■NOTE ON USE (Continued)

12. When the input voltage is close to the minimum input voltage, the current limit circuit might not be able to work.

13. When the voltage difference between input voltage and output voltage is low, the load stability feature may deteriorate.

14. If the capacitance value is not sufficient by degrading CL due to the low temp. condition and DC bias feature, 100% duty

cycle might come up for the load transient condition. Add capacitance value for CL if necessary.

15. If the capacitance value is not sufficient by degrading CL due to the low temp. condition and DC bias feature, the duty cycle

might not be stable. Add capacitance value for CL if necessary.

16. Torex places an importance on improving our products and their reliability.We request that users incorporate fail-safe

designs and post-aging protection treatment when using Torex products in their systems.

17. Please use within the power dissipation range below.

Please also note that the power dissipation may changed by test

conditions, the power dissipation figure shown is PCB mounted.

18.

The proper position of mounting is based on the coil terminal

Pd vs Operating Temperature

Pakage Body Temperature vs Operating Temperature

the power loss of micro DC/DC according to the following formula:

power loss = VOUT×IOUT×((100/EFFI) – 1)

(W)

VOUT : Output Voltage (V)

IOUT : Output Current (A)

EFFI : Conversion Efficiency (%)