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15 Watt

Single and Dual Output, 2:1 Wide Input Range


Miniature DC-DC Converters for Railway Applications

Our RLPA15 Series packs many features in a low-profile, 1.0 x 1.0 x 0.39-inch package including high efficiency up to 91 percent, low standby power, remote ON/OFF and a six-sided continuous shield. Devices feature an internal EN55032 Class A filter and overcurrent, overvoltage, undervoltage and short circuit protection. This series is CE marked and meets several standards, including EN50155 and EN45545-2 for railway applications, as well as UL, EN and IEC 60950-1 and 62368-1 approvals, RoHS and Reach.

RLPA15Series

INPUT

  • Voltage Range
    • 12Vin (nom): 9 Min., 12 Typ., 18 Max. Vdc
    • 24Vin (nom): 18 Min., 24 Typ., 36 Max. Vdc
    • 48Vin (nom): 36 Min., 48 Typ., 75 Max. Vdc
  • Start Up Voltage
    • 12Vin (nom): 9 Max. Vdc
    • 24Vin (nom): 18 Max. Vdc
    • 48Vin (nom): 36 Max. Vdc
  • Shutdown Voltage
    • 12Vin (nom): 7.5 Min., 8 Typ., 8.8 Max. Vdc
    • 24Vin (nom): 15.5 Min., 16 Typ., 17.5 Max. Vdc
    • 48Vin (nom): 32.5 Min., 33 Typ., 35.5 Max. Vdc
  • Start up time
    • Constant Resistive Load
    • Power Up: 30 Typ., 40 Max. mS
    • Remote On/Off: 30 Typ., 40 Max. mS
  • Input Surge Voltage
    • 12Vin (nom): 25 Max. Vdc
    • 24Vin (nom): 50 Max. Vdc
    • 48Vin (nom): 100 Max. Vdc
  • Input Filter: Pi type
  • Remote ON/OFF
    • Referred to -Vin pin
      • Positive Logic DC-DC ON: Open or 3-15 Vdc
      • DC-DC OFF, Option: Short or 0-1.2 Vdc
      • Negative Logic, DC-DC ON: Short or 0-1.2 Vdc
      • DC-DC OFF, Standard: Open or 3-15 Vdc
      • Input current of Ctrl pin: -0.5 Min., 1 Max, mA
      • Remote off input current: 1.5 Typ. mA

OUTPUT

  • Voltage Accuracy: -1 Min., 1 Max. %
  • Line Regulation
    • Low Line to High Line at Full Load
      • Single: -0.2 Min., 0.2 Max. %
      • Dual: -0.5 Min., 0.5 Max. %
  • Load Regulation
    • No load to full load, Single, -0.2 Min., 0.2 Max. %
    • No load to full load, Dual, -1 Min., 1 Max. %
    • 10% load to 90% load, Single, -0.1 Min., 0.1 Max. %
    • 10% load to 90% load, Dual, -0.8 Min., 0.8 Max. %
  • Cross Regulation: Asymmetrical load 25%/100% FL, Dual: -5 Min., 5 Max. %
  • Voltage Adjustability
    • Single output, 15Vout, 24Vout, -10 Min., 10 Max. %
    • Others, -10 Min., 10 Max. %
  • Ripple and noise
    • Measured by 20MHz bandwidth
    • Single, with a 10µF/6.3V X7R MLCC, 3.3Vout, 5Vout: 75 Typ. mVp-p
    • Single, with a 1µF/25V X7R MLCC, 12Vout, 15Vout: 100 Typ. mVp-p
    • Single, with a 2.2µF/50V X7R MLCC, 24Vout: 125 Typ. mVp-p
    • Dual, with a 10µF/6.3V X7R MLCC for each output, 5Vout: 75 typ. mVp-p
    • Dual, with a 1µF/25V X7R MLCC for each output, 12Vout, 15Vout: 100 Typ mVp-p
    • Dual, with a 2.2µF/50V X7R MLCC for each output, 24Vout: 125 Typ mVp-p
  • Temperature Coefficient: ±0.02%/°C Max.
  • Transient Response recovery time: 25% load step change, 250 Typ. µS
  • Overvoltage Protection:
    • 3.3Vout: 3.7 Min., 5.4 Max. Vdc
    • 5Vout: 5.6 Min., 7 Max. Vdc
    • 12Vout: 13.5 Min., 19.6 Max. Vdc
    • 15Vout: 18.3 Min., 22 Max. Vdc
    • 24Vout: 29.1 Min., 32.5 Max. Vdc
  • Over load protection: % of lout rated, 120 Min., 150 Typ., 190 Max. %
  • Short circuit protection: Continuous, automatic recovery

GENERAL SPECIFICATIONS

  • Isolation Voltage
    • Input to Output, Standard Type: 1600 Vdc, Min., 1 minute
    • Input to Output, Suffix "H": 3000 Min. Vdc
    • Input (Output) to case, Standard Type: 1000 Vdc, Min.
    • Input (Output) to case, Stuffix "H": 1600 Min. Vdc
  • Isolation resistance: 1 Min., 500Vdc
  • Isolation capacitance: 2000 pF, Max.
  • Switching Frequency
    • 3.3Vout, 5Vout, 220 Min., 245 Typ., 270 Max., kHz
    • Others, 270 Min., 300 Typ., 330 Max., kHz

ENVIRONMENTAL SPECIFICATIONS

  • Operating Ambient Temperature
    • Standard type, with derating, -40 Min., 105 Max. °C
    • M3 version, with derating, -55 Min., 105 Max. °C
  • Maximum Case Temperature: 105 Max. °C
  • Storage Temperature Range: -55 Min., 125 Max. °C
  • Thermal Impedance:
    • 17 Typ. °C without heat-sink
    • 15.3 Typ. °C with heat-sink
  • Thermal Shock: MIL-STD-810F
  • Shock: MIL-STD-810F
  • Vibration: MIL-STD-810F
  • Relative Humidity: 5% to 95% RH

PHYSICAL SPECIFICATIONS

  • Design Meet Safety Standard: UL60950-1, EN60950-1, IEC60950-1, UL62368-1, EN 62368-1, IEC 62368- 1, EN50155, EN45545-2, UL:E193009, CB:UL(Demko)
  • Case Material: Copper
  • Base Material: FR4 PCB
  • Potting Material: Silicone (UL94 V-0)
  • Weight: 16.5g (0.58oz)
  • Dimensions: 1” × 1” × 0.39”
  • MTBF: 1.672×106 hrs, MIL-HDBK-217F, Full load

EMC SPECIFICATIONS

  • EMI: EN55032, EN55011,
    • Without external components, Class A
    • With external components, Class B
  • ESD: EN61000-4-2, Air ±8kV and Contact ±6kV, Perf. Criteria A
  • Radiated Immunity: EN61000-4-3, 10V/m, Perf. Criteria A
  • Fast Transient: EN61000-4-4, ±2kV, Perf. Criteria A
  • Surge: EN61000-4-5, ±1kV
  • Conducted Immunity: EN61000-4-6, 10 Vr.m.s, Perf. Criteria A
  • Power Frequency Magnetic Field: EN61000-4-8, 100 A/m continuous; 1000 A/m 1 second, Perf. Criteria A
Input Voltage
(Vdc)
Output Voltage
(Vdc)
Output Current at Full load
(mA)
Output Current at No load
(mA)
Efficiency
(%)
Model NumberMax. Capacitor Load
(uF)
Single Output
9 - 18 3.3 4500 8 88 RLPA15-24S33 5200
9 - 18 5 3000 8 90 RLPA15-24S5 3600
9 - 18 12 1300 8 89 RLPA15-24S12 600
9 - 18 15 1000 10 90 RLPA15-24S15 500
9 - 18 24 625 10 91 RLPA15-24S24 200
18 - 36 3.3 4500 8 88 RLPA15-48S33 5200
18 - 36 5 3000 8 90 RLPA15-48S5 3600
18 - 36 12 1300 8 89 RLPA15-48S12 600
18 - 36 15 1000 8 90 RLPA15-48S15 500
18 - 36 24 625 8 91 RLPA15-48S24 200
36 - 75 3.3 4500 7 87 RLPA15-110S33 5200
36 - 75 5 3000 7 89 RLPA15-110S5 3600
36 - 75 12 1300 7 89 RLPA15-110S12 600
36 - 75 15 1000 7 89 RLPA15-110S15 500
36 - 75 24 625 7 90 RLPA15-110S24 200
Dual Output
9 - 18 ±5 ±1500 10 86 RLPA15-24-5 ±1500
9 - 18 ±12 ±625 10 90 RLPA15-24-12 ±360
9 - 18 ±15 ±500 14 90 RLPA15-24-15 ±250
9 - 18 ±24 ±315 14 90 RLPA15-24-24 ±100
18 - 36 ±5 ±1500 8 86 RLPA15-48-5 ±1500
18 - 36 ±12 ±625 8 90 RLPA15-48-12 ±360
18 - 36 ±15 ±500 9 90 RLPA15-48-15 ±250
18 - 36 ±24 ±315 9 90 RLPA15-48-24 ±100
36 - 75 ±5 ±1500 7 85 RLPA15-110-5 ±1500
36 - 75 ±12 ±625 7 89 RLPA15-110-12 ±360
36 - 75 ±15 ±500 7 89 RLPA15-110-15 ±250
36 - 75 ±24 ±315 7 89 RLPA15-110-24 ±100