YNC14S20A-0 datasheet(11/28 Pages) POWER-ONE

11 / 28 page

OCT 12, 2006 revised to APR 23, 2007

Page 11 of 28

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YNC12S20 DC-DC Converter Data Sheet

9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 20 A

Fig. 5.0V.4: Turn-on transient for Vout = 5.0 V with

application of Vin at full rated load current

(resistive) and 100 μF external capacitance at Vin =

12 V. Top trace: Vin (10 V/div.); Bottom trace:

output voltage (1 V/div.); Time scale: 2 ms/div.

Fig. 5.0V.6: Output voltage response for Vout = 5.0 V

to positive load current step change from 10 A to 20 A

with slew rate of 5 A/μs at Vin = 12 V. Top trace:

output voltage (200 mV/div.); Bottom trace: load

current (5 A/div.). Co = 100 μF ceramic. Time scale:

20 μs/div.

Fig. 5.0V.5: Output voltage ripple (20 mV/div.) at full

rated load current into a resistive load with external

capacitance 100 μF ceramic + 1 μF ceramic and Vin =

12 V for Vout = 5.0 V. Time scale: 2 μs/div.

Fig. 5.0V.7: Output voltage response for Vout = 5.0 V

to negative load current step change from 20 A to

10 A with slew rate of -5 A/μs at Vin = 12 V. Top

trace: output voltage (200 mV/div.); Bottom trace: load

current (5 A/div.). Co = 100 μF ceramic. Time scale:

20 μs/div.

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