Datasheet

www.murata-ps.com/support
ULT Series
Thirty-Second-Brick Isolated DC/DC Converters
with 2:1 Wide Input Range
MDC_ULT Series.F05 Page 4 of 26
OUTPUT
Conditions ➀
Minimum Typical/Nominal Maximum Units
Total Output Power 0 24.75 25 W
Voltage
Nominal Output Voltage 3.2505 3.3 3.35 Vdc
Setting Accuracy At 50% load -1.5 1.5 Vdc
Output Trim Range ➇
User selectable (see trim formulas) -20 10 % of Vout
Overvoltage Protection 3.9 4.6 Vdc
Current
Output Current Range 0 7.5 7.5 A
Minimum Load no minimal load required
Current Limit Inception ➈
98% of Vnom., after warmup 8.8 10.8 12.5 A
Short Circuit
Short Circuit Current
Hiccup technique, autorecovery within ±1.25%
of Vout
0.3 A
Short Circuit Duration (remove short for
recovery)
Output shorted to ground, no damage Continuous
Short circuit protection method Hiccup current limiting Non-latching
Regulation
➆
Line Regulation Vin=min. to max., Vout=nom., full load ±0.15 % of Vout
Load Regulation Iout=min. to max., Vin=nom. ±0.2 % of Vout
Ripple and Noise
12
Tested with eight 47µF ceramic caps in parallel 45 50 mV pk-pk
Temperature Coeffi cient At all outputs 0.02 % of Vout./°C
Maximum Capacitive Loading Low ESR 400 5,000 F
Remote Sense Compliance Vsense = Vout - Vload, sense connected at load 10 % of Vout
MECHANICAL (Through Hole Models)
Conditions ➀ ➂
Minimum Typical/Nominal Maximum Units
Outline Dimensions 0.92 x 0.75 x 0.35 Inches
(Please refer to outline drawing) LxWxH 23.4x19.05x8.89 mm
Weight 0.32 Ounces
9.07 Grams
Through Hole Pin Diameter .04 & .062 Inches
1.02 & 1.57 mm
Through Hole Pin Material Brass
TH Pin Plating Metal and Thickness Nickel subplate 50 µ-inches
Gold overplate 3-5 µ-inches
ENVIRONMENTAL
Operating Ambient Temperature Range ➉
See derating curves -40 85 °C
Storage Temperature Vin = Zero (no power) -55 125 °C
Thermal Protection/Shutdown 120 130 140 °C
Electromagnetic Interference External fi lter is required
Conducted, EN55022/CISPR22 B Class
RoHS rating RoHS-6
FUNCTIONAL SPECIFICATIONS (ULT-3.3/7.5-D48-C, CONT.)