Additional Resources: Product Page 3D Model PCB Footprint date 07/15/2021 page 1 of 6 SERIES: PQME3-M DESCRIPTION: DC-DC CONVERTER FEATURES up to 3 W continuous power 14 pin SMT package 4:1 input range single regulated output -40 to +85C temperature range efficiency up to 84% no load power consumption under 0.1 W EN 62368-1 4 input output output output ripple efficiency MODEL 3 voltage voltage current power & noise typ range min max max max typ (Vdc) (Vdc) (Vdc) (mA) (mA) (W) (mVp-p) (%) PQME3-D24-S3-M 24 9~36 3.3 0 728 2.4 120 75 1, 2 PQME3-D24-S5-M 24 9~36 5 0 600 3 120 80 PQME3-D24-S9-M 24 9~36 9 0 333 3 120 80 1, 2 PQME3-D24-S12-M 24 9~36 12 0 250 3 120 82 1, 2 PQME3-D24-S15-M 24 9~36 15 0 200 3 120 83 1, 2 PQME3-D24-S24-M 24 9~36 24 0 125 3 120 82 2 PQME3-D48-S3-M 48 18~75 3.3 0 728 2.4 120 75 2 PQME3-D48-S5-M 48 18~75 5 0 600 3 120 79 2 PQME3-D48-S12-M 48 18~75 12 0 250 3 120 82 2 PQME3-D48-S15-M 48 18~75 15 0 200 3 120 84 2 PQME3-D48-S24-M 48 18~75 24 0 125 3 120 82 Notes: 1. UL certified 2. CE certified 3. From 5~100% load, nominal input, 20 MHz bandwidth oscilloscope, with 10 F tantalum and 1 F ceramic capacitors on the output. From 0~5% load, ripple and noise is <5% Vo. 4. Measured at nominal input voltage, full load. 5. All specifications are measured at Ta=25C, humidity < 75%, nominal input voltage, and rated output load unless otherwise specified. PART NUMBER KEY PQME3 - DXX - SXX - M - X Package Options: Base Number Input Voltage Output Voltage blank = Tube TR = Tape & Reel cui.comAdditional Resources: Product Page 3D Model PCB Footprint CUI Inc SERIES: PQME3-M DESCRIPTION: DC-DC CONVERTER date 07/15/2021 page 2 of 6 INPUT parameter conditions/description min typ max units 24 Vdc input models 9 24 36 Vdc operating input voltage 48 Vdc input models 18 48 75 Vdc 24 Vdc input models 9 Vdc start-up voltage 48 Vdc input models 18 Vdc for maximum of 1 second surge voltage 24 Vdc input models -0.7 50 Vdc 48 Vdc input models -0.7 100 Vdc 24 Vdc input models 5.5 6.5 Vdc under voltage shutdown 48 Vdc input models 13 15.5 Vdc 3.3 Vdc output models 138 mA 24 Vdc input models all other models 161 mA current 3.3 Vdc output models 69 mA 48 Vdc input models all other models 82 mA turn on (control pin floating or connected to TTL high level 3.5~12 Vdc) 1 turn off (control pin connected to GND or low level 0~1.2 Vdc) remote on/off (CTRL) input current when switched off 6 10 mA filter C type no load power consumption 0.1 W Note: 1. The voltage of the CTRL pin is referenced to GND. OUTPUT parameter conditions/description min typ max units 3.3, 5 Vdc output models 2,200 F 9 Vdc output models 1,000 F maximum capacitive load 12 Vdc output models 680 F 15 Vdc output models 470 F 24 Vdc output models 100 F voltage accuracy 1 3 % line regulation from low line to high line, full load 0.2 0.5 % load regulation from 0% to full load 0.5 1 % start-up time at nominal input voltage 10 ms 2 switching frequency PWM mode 350 kHz transient recovery time 25% load step change, nominal input voltage 300 500 s transient response deviation 25% load step change, nominal input voltage 3 5 % temperature coefficient at full load 0.03 %/C Note: 2. Value is based on full load. At loads <50%, the switching frequency decreases with decreasing load. PROTECTIONS parameter conditions/description min typ max units over current protection 150 250 % short circuit protection hiccup SAFETY AND COMPLIANCE parameter conditions/description min typ max units isolation voltage input to output for 1 minute at 1 mA 1,500 Vdc isolation resistance input to output at 500 Vdc 1,000 M isolation capacitance input to output, 100 kHz / 0.1 V 1,000 pF certified to 62368-1: EN 3 safety approvals certified to 60950-1: UL conducted emissions CISPR22/EN55022, class B (external circuit required, see Figure 2-b) Note: 3. See specific models noted on page 1. cui.com