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Notes:
(1) Switch selectable for 115 or 230VAC
(2) LS25-3 Derate linearly to 60% load from +40 to +70°C.
LS50, LS75-3 & -5 Derate linearly to 70% load from +50 to +70°C.
LS25-5 to 48, LS75-12 to 48 Derate linearly to 60% load from +50 to +70°C.
LS100-3 & -5 Derate linearly to 60% load from +45 to +70°C. Derate linearly to 80% load from 115V to 88VAC input.
LS100-12, -15, -24, -36, -48 Derate linearly to 60% load from +50 to +70°C. Derate linearly to 80% load from 115V to 88VAC input.
LS150-3 & -5, Derate linearly to 50% load from +40 to +70°C.
LS150-12, -15, -24, -36, -48 Derate linearly to 70% load from +50 to +70°C.
LS Series
Features
Very low cost
25W to 150W
Small size
115VAC or 230VAC input
Withstands 300VAC surges (5s)
Three year warranty
Single Output General Purpose Power Supplies
Model LS25 LS35 LS50 LS75 LS100 LS150
AC Input V oltage (300VAC for 5s) V AC 88 - 264VAC (See note (2) for LS100) 88-132/176-264VAC(1)
Input Frequency Hz 47 - 63Hz
DC Input Voltage VDC 125 - 373VDC* 248 - 273VDC*
Inrush Current (230V AC, cold start) A 30 40 40 40 60 40
Power Factor - Meets EN61000-3-2, -3
Input Current (115/230VAC) A 0.7 / 0.4 0.8 / 0.55 1.3 / 0.8 1.6 / 1.0 2.2 / 1.2 3.5 / 2
Temperature Coeffi cient - <0.02%/°C
Overcurrent Protection - > 110%
Overvoltage Protection V 3.3V: 3.8-4.45V, 5V: 5.75-6.75V, 12V: 13.8-16.2V, 15V: 17.25-20.25V,
24V: 27.6-32.4V, 36V: 41.4-48.6V, 48V: 55.2-64.8V
Hold Up Time (115 / 230V input) ms 14 / 80 12 / 80 14 / 60 14 / 60 25 / 150 20 / 28
Leakage Current (230VAC 60Hz) mA <1mA
Remote Sense - No
LED Indicator - Green LED = On
Operating Temperature °C -25 to +70°C. Derate linearly to 50% load from +50 to +70°C (2)
Storage Temperature °C -40 to +85°C
Operating Humidity - 20 - 90% RH (non condensing)
Storage Humidity - 10 - 95% RH (non condensing)
Cooling - Convection
Withstand Voltage - Input to Ground 1.5kVAC, Input to Output 3kVAC, Output to Ground 500VAC for 1 min.
Isolation Resistance - >100M at 25C & 70%RH, Output to Ground 500VDC
Vibration (non operating) - 10 - 55Hz: 19.6m/s2 constant sweep 1 min X, Y, Z for 1 hour
Shock - < 196.1 m/s2 (20G)
Immunity - IEC61000-4-2, -3, -4, -5, -6, -8, -11
Safety Agency Approvals - UL /CSA (cUL) /IEC 60950-1 (2nd Ed), CE Mark (Additionally evaluated to EN 60950-1)
Conducted & Radiated EMI - EN55011/EN55022-B, FCC-B
MTBF (MIL-HDBK-217F) hrs 906,997 706,464 712,890 648,786 545,375 505,393
Weight (Typ) g 170 270 350 410 600 700
Size (LxWxH) in 3.1 x 2.0 x 1.1 3.9 x 3.2 x 1.4 3.9 x 3.8 x 1.4 5.1 x 3.8 x 1.5 6.3 x 3.8 x 1.5 7.8 x 3.9 x 1.5
Warranty yrs Three Years
Specifi cations
Key Market Segments & Applications
*Safety certifi ed for AC input only
721-800-526-2324 • www.us.tdk-lambda.com/lp/ Revision B2.1: Apr 2014
LS Series
For Additional Information, please visit
us.tdk-lambda.com/lp/products/ls-series.htm
Adjust Range Max Current Load Reg Line Reg Ripple Noise Effi ciency
Model Voltage (V) (A) (mV) (mV) (mV) (typ) %
LS25-3.3 3.3V 2.85 - 3.6 6.0 40 20 80 75
LS25-5 5V 4.5 - 5.5 5.0 40 20 80 79
LS25-12 12V 10.8 - 13.2 2.1 96 48 120 83
LS25-15 15V 13.5 - 16.5 1.7 120 60 120 83
LS25-24 24V 22 - 27.6 1.1 192 96 120 84
LS25-36 36V 32 - 40 0.75 288 144 150 84
LS25-48 48V 42 - 54 0.57 384 192 200 85
LS35-3.3 3.3V 2.85 - 3.6 7.0 40 20 80 75
LS35-5 5V 4.5 - 5.5 7.0 40 20 80 78
LS35-12 12V 10.8 - 13.2 3.0 96 48 120 82
LS35-15 15V 13.5 - 16.5 2.4 120 60 120 83
LS35-24 24V 22 - 27.6 1.5 192 96 120 84
LS35-36 36V 32 - 40 1.0 288 144 150 84
LS35-48 48V 42 - 54 0.8 384 192 200 84
LS50-3.3 3.3V 3.0 - 3.6 10.0 40 20 80 75
LS50-5 5V 4.75 - 5.5 10.0 40 20 80 80
LS50-12 12V 10.8 - 13.2 4.2 96 48 120 84
LS50-15 15V 13.5 - 16.5 3.4 120 60 120 85
LS50-24 24V 22 - 27.2 2.2 192 96 120 86
LS50-36 36V 32 - 40 1.4 288 144 150 86
LS50-48 48V 42 - 54 1.1 384 192 200 86
LS75-3.3 3.3V 3.0 - 3.6 15.0 40 20 80 75
LS75-5 5V 4.75 - 5.5 12.0 40 20 80 79
LS75-12 12V 10.8 - 13.2 6.0 96 48 120 84
LS75-15 15V 13.5 - 16.5 5.0 120 60 120 85
LS75-24 24V 22 - 27.2 3.2 192 96 120 86
LS75-36 36V 32 - 40 2.1 288 144 150 86
LS75-48 48V 42 - 54 1.6 384 192 200 87
LS100-3.3 3.3V 3.0 - 3.6 20.0 40 20 80 75
LS100-5 5V 4.75 - 5.5 16.0 40 25 80 79
LS100-12 12V 10.8 - 13.2 8.5 96 48 120 82
LS100-15 15V 13.5 - 16.5 7.0 120 60 120 84
LS100-24 24V 22 - 27.2 4.5 192 96 120 86
LS100-36 36V 32 - 40 3.0 288 144 150 86
LS100-48 48V 42 - 54 2.3 384 192 200 86
LS150-3.3 3.3V 3.0 - 3.6 30.0 40 20 80 75
LS150-5 5V 4.75 - 5.5 26.0 40 20 80 79
LS150-12 12V 10.8 - 13.2 12.5 96 48 120 83
LS150-15 15V 13.5 - 16.5 10.0 120 60 120 85
LS150-24 24V 22 - 27.2 6.5 192 96 120 86
LS150-36 36V 32 - 40 4.3 288 144 150 87
LS150-48 48V 42 - 54 3.3 384 192 200 87
Output Ratings
