Datasheet

UCQ-3.3/40-D48 UCQ-5/20-D24 UCQ-5/20-D48 UCQ-5/25-D48 UCQ-12/8.3-D48 UCQ-15/6.7-D48N-C
Input
Input voltage range See ordering guide
Start-up threshold, Volts 33 17 35 35 35 34
Undervoltage
shutdown, V
31.5 16 34 34 34 31.5
Overvoltage shutdown none
Reflected (back) ripple
current, mA pk-pk
10-30, model dependent. 60 max.
Input Current
Full load conditions See ordering guide.
Inrush transient, A
2
sec 0.1 0.05 0.03
Output short circuit, mA 1200 50-200, model dependent 120
Low line (Vin = min.),
Amps
4.12 6.04 3.02 3.82 3.04 3.03
Standby mode, mA
(Off, UV, OT shutdown)
1-10, model dependent
Internal input filter type Pi L-C L-C L-C L-C Pi
Reverse polarity
protection
None, install external fuse.
Remote On/Off Control
Positive logic
(P model suffix)
OFF = Ground pin to +0.8V
ON = Open or +3.5 to +13.5V max
OFF = Ground pin or to +1V.
ON = Open or +2.5 to +13.5V
Negative logic
(N model suffix)
OFF = Open or +3.5 to +13.5V
ON = Ground pin to +0.8V max
OFF = Open or +2.5 to +13.5V
ON = Ground pin or to +1V.
Current, mA 1
Output
Voltage output range See ordering guide.
Voltage output accuracy ±1% of Vnom., (50% load)
Adjustment range,
% of Vnom.
−10 to + 10%
Temperature coefficient ±0.02% of Vout range per °C.
Minimum loading No minimum loading.
Remote sense
compensation
+10%
Ripple/noise
(20 MHz bandwidth)
See ordering guide.
Line/Load regulation See ordering guide.
Efficiency See ordering guide.
Maximum capacitive
loading, µF low ESR
<0.02Ω max.,
resistive load
10,000 10,000 10,000 10,000 1,000 1000
➀ Specs are typical unless noted.
FUNCTIONAL SPECIFICATIONS
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Single Output UCQ Models
Low-Profile, Quarter Brick, 8.3-40 Amp
Isolated DC-DC Converters
MDC_UCQ Models.E02 Page 5 of 24