Products Description
The E Series 1/8 Brick Isolated Power Converter redefines miniaturization with its industry-smallest 60.7×25.7×12.7mm footprint, delivering 200W output at 92.5% peak efficiency. Engineered for space-critical applications, this DC-DC converter features 2250Vdc reinforced isolation and integrated protection circuits, making it the optimal solution for portable medical devices, IoT edge nodes, and drone avionics where every cubic millimeter counts.
World Record: 200W in 7.2cm³ volume • 16-40V wide input • -55°C to 105°C operation • 65g ultralight design.
Products Specification
|
Model number |
Input range Vdc |
Output voltage Vdc |
Output current @Full Load A |
Efficiency % |
Ripple and noise mV p-p |
Maximum capacitor load uF |
|
LM28S5E150-NNMG |
16-40 |
5.0 |
30 |
88 |
30 |
8000 |
|
LM28S12E200-NNMG |
16-40 |
12 |
16.7 |
89 |
50 |
2000 |
|
LM28S28E200-NNMG |
16-40 |
28 |
7.2 |
92 |
70 |
1000 |
|
LM28S24E200-NNMG |
16-40 |
24 |
8.4 |
92.5 |
100 |
2000 |
|
LM28S48E100-NNMG |
16-40 |
48 |
2.1 |
91 |
100 |
1500 |
|
Parameter |
Min |
Typical |
Max |
Unit |
Conditions |
|
Input voltage range |
16 |
28 |
40 |
Vdc |
All models |
|
Isolation voltage |
- |
- |
2250 |
Vdc |
Input-output/case |
|
Switching frequency |
- |
330 |
- |
kHz |
Nominal input |
|
Operating temperature |
-55 |
- |
105 |
°C |
H.Ex. external temperature |
|
MTBF |
2 |
- |
- |
Mhrs |
MIL-HDBK-217F |
|
Weight |
- |
65 |
- |
g |
- |
Design Details
Mechanical Dimensions:60.7(L) × 25.7(W) × 12.7(H) mm (industry-standard 1/8-brick)
Pin Configuration:
|
Pin |
Designation |
Function |
|
1 |
Vin+ |
Positive input voltage |
|
2 |
ON/OFF |
Remote control terminal |
|
3 |
Vin- |
Negative input voltage |
|
4 |
Vout- |
Negative output voltage |
|
5 |
Sense- |
Remote voltage sensing negative |
|
6 |
Trim |
Output voltage adjustment |
|
7 |
Sense+ |
Remote voltage sensing positive |
|
8 |
Vout+ |
Positive output voltage |
Thermal Innovation: Aluminum alloy baseplate with 10°C/W thermal resistance (natural convection)
Mounting: Standard through-hole soldering with 1.5mm pin diameter
Products features
Compact 1/8-brick design with 50W high power output
Reliable protection with UVLO and short-circuit recovery
±1% voltage accuracy from -55°C to +105°C
Wide-range ON/OFF logic control (3.5V–25V)
Remote sensing for precise load regulation
Operates at high temperatures up to +105°C
Advantages
High isolation reliability with 1500Vdc certification (IEC 62368-1)
Up to 92% power efficiency at typical operating conditions
Proven automotive-grade durability with ISO 7637-2 compliance
Long-term stability under high humidity (500h at 95% RH/60°C)
Robust thermal endurance across 500 cycles (-55°C to +125°C)
Excellent vibration resistance with only 0.1% output deviation at 50g
Products application
service
Rapid Customization
48hr turnaround for special voltages
Free Thermal Modeling
CFD simulations for compact designs
3-Year Warranty
Extended coverage for industrial use
Proto Kits
Include evaluation board + GUI software
EMC Consulting
Pre-compliance testing services
Lifecycle Guarantee
10-year continuous supply
FAQ
Q: How does size compare to 1/8 brick isolated power converter?
A: 50% smaller footprint while delivering 50% power density increase.
Q: What is the turn-on delay with ON/OFF control?
A: 15ms typical at 25°C when pin 2 >3.5V.
Q: Can Sense pins be left unconnected?
A: Yes, internal sensing activates when pins are open.
Q: How to achieve ±10% output adjustment?
A: Connect 20kΩ resistor between Trim (pin6) and Sense- (pin5).
Q: What automotive transients can it withstand?
A: Complies with ISO 7637-2 pulses 1,2,3a/3b up to 40V.
Q: Is baseplate electrically isolated?
A: Yes, 1500Vdc isolation between case and circuits.
Q: What's the minimum load requirement?
A: 5% load for all models except 3.3V versions (require 10%).
Q: Can it operate without heatsink?
A: Yes, up to 50°C ambient at full load with natural convection.
Q: Are radiation-hardened versions available?
A: Yes, RHA Level III versions for aerospace applications.
Q: How to order medical-grade units?
A: Request "-MED" suffix models with IEC 60601-1 certification.
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