QF-XT＆QE-XT Series 0.25W, FIXED INPUT, ISOLATED SINGLE/DUAL OUTPUT DC-DC CONVERTER SELECTION GUIDE Input Output Efficiency Order code Voltage(VDC) Voltage Current(mA) Range (VDC) Max. 3.3 65 81 (%.Typ.) Nominal FEATURES QF0503XT 5 4.5-5.5 QF0505XT 5 4.5-5.5 5 50 83 QF0512XT 5 4.5-5.5 12 21 74 ◆ Fixed Input Range ◆ Short Circuit Protection(automatic recovery) QF0515XT 5 4.5-5.5 15 16.75 76 ◆ I/O isolation voltage 3000VDC QE0505XT 5 4.5-5.5 ±5 ±25 81 ◆ Operating Temperature: -40℃～﹢85℃ QE0512XT 5 4.5-5.5 ±12 ±13 85 QE0515XT 5 4.5-5.5 ±15 ±8.5 83 High efficiency up to 80% QF1203XT 12 10.8-13.2 3.3 65 86 ◆ High accuracy of pin co-planarity QF1205XT 12 10.8-13.2 5 50 85 ◆ Small SMD package with footprint ◆ QF1212XT 12 10.8-13.2 12 21 74 QF1215XT 12 10.8-13.2 15 16.75 78 ◆ Available in tape and reel package QE1205XT 12 10.8-13.2 ±5 ±25 80 ◆ Single and dual output models QE1212XT 12 10.8-13.2 ±12 ±13 80 ◆ Excellent load and line regulation QE1215XT 12 10.8-13.2 ±15 ±8.5 85 MODEL SELECTION ① ② ③ ④ ⑤ F(E) 05 05 X T ①Product Series ③Output Voltage ⑤SMD Package ②Input Voltage ④Fixed Input QF2403XT* 24 21.6-26.4 3.3 65 81 QF2405XT * 24 21.6-26.4 5 50 85 QF2412XT * 24 21.6-26.4 12 21 83 QF2415XT* 24 21.6-26.4 15 16.75 86 QE2405XT * 24 21.6-26.4 ±5 ±25 85 QE2412XT * 24 21.6-26.4 ±12 ±13 74 QE2415XT* 24 21.6-26.4 ±15 ±8.5 78 * Desining ... APPLICATIONS The QF(E)-XT series are miniature,0.25W DC/DC converters with high isolation in a SMD package.With a new package design these converters are qualified for the higher temperatures requested by lead-free reflow solder processes.With the small footprint,these converters are the ideal solution for board level power distribution,mainly for applications in the industrial and telecom field. For automated SMD production lines the devices can be supplied in standard tape and reel package. Case material:non-conductive plastic(UL 91V-0 rated) Weight: 2.0g (0.07oz) Input Specifications Parameter Input current at full load MICRODC R ESERVES THE COPYRIGHT Conditions 5 Vin models: Max. 7.5mA/65mA typ. 12Vin models: 3.75mA/27.5mA typ. 24Vin models: 2mA/13.75mA typ. Surge voltage 5 Vin models: (1sec. max.) 12 Vin models: 2.25V max. 4.5V max. 24 Vin models: 0.075A max. Reverse voltage protection Input filter http://www.microdc.cn 7.5V max. internal capacitor Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 3 QF-XT＆QE-XT Series Output Specifications Parameter Conditions Voltage set accuracy Regulation see graphs below – Input variation 1.2 % / 1 % change Vin – Load variation see graphs below Voltage balance (dual output ± 1.0% max. models, balanced load) Temperature coefficient 0.1 %/K 100 mVp-p max. Ripple and noise (20 MHz Bandwidth) Temperature coefficient ± 0.02%/K max. Short circuit protection limited 0.5 sec. max. Capacitive load 3.3 VDC output models: 33µF max. 5 VDC output models: 33µF max. 12 VDC output models: 4.7µF max. 15 VDC output models: 2.2µF max. ±5 VDC output models: 10µF max. ±12 VDC output models: 2.2µF max. ±15 VDC output models: 2.2µF max. General Specifications Parameter Temperature ranges Load derating Conditions – Operating – 40 °C～+ 85 °C (no derating) – Case temperature +95°C max. – Storage – 55 °C～+ 125 °C (convection cooling) 4%/K above +75°C Humidity (non condensing) 95 % rel. H max. Reliability, calculated MTBF >2Mio h (MIL-HDBK-217F ground benign) Isolation voltage (60 sec) Isolation capacity Isolation resistance Switching frequency – Input/Output – Input/Output(100kHz, 1V) – Input/Output (500 VDC) 3000 VDC 60 pF typ. >1 GOhm 50 to 150 kHz (depending on load) Output voltage variation dependent on load (at nominal input voltage) All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 3 QF-XT＆QE-XT Series OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS MECHANICAL DIMENSIONS SOLDER PAD DIMENSION Note: Unit:mm[inch] Pin section tolerances:±0.10mm[±0.004inch] General tolerances:±0.25mm[±0.010inch] Dimensions in [mm], () = Inch Pin pitch tolerances: ±0.13 (±0.005) Other tolerances: ±0.25 (±0.01) TUBE OUTLINE DIMENSIONS FOOTPRINT DETAILS Pin Single Dual 1 -Vin(GND) -Vin(GND) 2 +Vin +Vin 3 No con. No con. 5 -Vout Common 6 No con. -Vout 7 No con. No con. 8 +Vout +Vout 10 No con. No con. 11 No con. No con. 12 No con. No con. No con.=Pin to be isolated from circuitry Unless otherwise stated all dimensions in mm±0.5 (inches ±0.02). Tube length : 475±2.0 (18.70±0.07). Tube Quantity :25 Specifcations can be changed any time without notice. No parallel connection or plug and play. Note: 1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically. 2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed. 3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 4. In this datasheet, all the test methods of indications are based on corporate standards. 5. Only typical models listed, other models may be different, please contact our technical person for more details. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 3 of 3