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Up to 1 Watt

Single Output, Non-isolation


4.6-36 Vdc, Wide Input Range

With a 3 PIN SIP package and up to 96% efficiency, the LM1 series of DC-DC converters has an operating temperature from -40 to 100°C, a built-in filter capacitor and a wide input voltage range. This series has a small size and low profile package 0.46" x 0.30" x 0.40", no minimum load requirement and no heat sink required. In addition, this series meets UL60950-1, EN60950-1 and IEC60950-1 safety standards.

LM1

INPUT

  • Operating input voltage range
    • 4.6 - 36 Vdc: LM1-1.2
    • 4.6 - 36 Vdc: LM1-1.5
    • 4.6 - 36 Vdc: LM1-1.8
    • 4.6 - 36 Vdc: LM1-2.5
    • 4.75 - 36 Vdc: LM1-3.3
    • 6.5 - 36 Vdc: LM1-5
    • 9 - 36 Vdc: LM1-6.5
    • 12 - 36 Vdc: LM1-9
    • 15 - 36 Vdc: LM1-12
    • 18 - 36 Vdc: LM1-15
  • Rise time: 2 ms
    • Time for Vout rises from 10 to 90% of Vout
  • Input filter: capacitor type
  • Input reflected ripple current: 150 mAp-p

OUTPUT

  • Voltage accuracy: ±2%
  • Line regulation:
    • ±0.2%: Low line to high line at full load
  • Load regulation: 10 to 100% of full load
    • ±0.6: 1.2 Vout, 1.5 Vout, vertical mounting
    • ±0.4: Others, vertical mounting
    • ±1.2: 1.2 Vout, 1.5 Vout, 1.8 Vout, horizontal mounting
    • ±0.4: Others, horizontal mounting
  • Ripple and noise
    • 50 mVp-p: Vout ≤ 6.5 Vdc
    • 75 mVp-p: Vout ≥ 9 Vdc
  • Temperature coefficient: ±0.015%/°C
  • Dynamic load response: 50% load step change
    • Peak deviation: 150 mV
    • Recovery time: 250 μs
  • Over load protection
    • 2.5 A: % of lout rated; Hiccup mode
  • Short circuit protection
    • Continuous, automatics recovery

GENERAL

  • Switching frequency: 400 - 600 kHz

ENVIRONMENTAL

  • Operating ambient temperature
    • With derating: -40 - 100°C
  • Over temperature protection
    • Internal IC junction: 150°C
  • Storage temperature range: -55 - 125°C
  • Thermal shock: MIL-STD-810F
  • Vibration: MIL-STD-810F
  • Relative humidity: 5 to 95% RH

PHYSICAL

  • Design meets safety standards: IEC60950-1, UL60950-1, EN60950-1
  • Case material: non-conductive black plastic
  • Potting material: Silicone (UL94 V-0)
  • Dimensions: 0.46 x 0.30 x 0.40 inches (11.68 x 7.62 x 10.16 mm)
  • Weight: 1.9g (0.067oz)
  • MBTF: 2.571 x 107 hours, MIL-HDBK-217F, full load
Input Voltage Range
Vdc
Output Voltage
Vdc
Output Current
at Full Load
A
Input Current
at No Load
mA
Efficiency Min. Vin
%
Efficiency Max. Vin
%
Model Number Maximum
Capacitor Load
µF
4.6 - 36    1.2 1 1 74 62 LM1-1.2 470
1.5 1 1 78 65 LM1-1.5 470
1.8 1 1 82 69 LM1-1.8 470
2.5 1 1 87 75 LM1-2.5 470
4.75 - 36 3.3 1 2 91 78 LM1-3.3 470
6.5 - 36 5 1 1 94 84 LM1-5 470
9 - 36 6.5 1 1 93 87 LM1-6.5 470
12 - 36 9 1 1 95 90 LM1-9 470
15 - 36 12 1 1 95 92 LM1-12 470
18 - 36 15 1 1 96 94 LM1-15 470