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SQM48T/S20 DC-DC Converter Data Sheet
36-75 VDC Input; 1.2-3.3 VDC @ 20A Outputs
SQM48T/S20015 (1.5 Volt Out)
Fig. 1.5V.3: Turn-on transient at full rated load current
(resistive) with no output capacitor at Vin = 48 V,
triggered via ON/OFF pin. Top trace: ON/OFF signal
(5 V/div.). Bottom trace: output voltage (0.5 V/div.). Time
scale: 2 ms/div.
Fig. 1.5V.5: Output voltage response to load current
step-change (5A – 10A – 5A) at Vin = 48 V. Top trace:
output voltage (100 mV/div.). Bottom trace: load current
(5 A/div.). Current slew rate: 0.1 A/ ? s. Co = 1 ? F
ceramic. Time scale: 0.2 ms/div.
Fig. 1.5V.4: Turn-on transient at full rated load current
(resistive) plus 10,000 ? F at Vin = 48 V, triggered via
ON/OFF pin. Top trace: ON/OFF signal (5 V/div.).
Bottom trace: output voltage (0.5 V/div.). Time scale:
2 ms/div.
Fig. 1.5V.6: Output voltage response to load current
step-change (5A – 10A – 5A) at Vin = 48 V. Top trace:
output voltage (100 mV/div.). Bottom trace: load current
(5 A/div.). Current slew rate: 5 A/ ? s. Co = 450 ? F
tantalum + 1 ? F ceramic. Time scale: 0.2 ms/div.
MCD10208 Rev. 1.0, 08-Jul-10
Page 25 of 33
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