2A-NXT&2B-NXT Series 2 Watt FIXED INPUT, ISOLATED Dual &Single SMD Output DC-DC CONVERTER SELECTION GUIDE Part Number Input Voltage Outpu Voltage Output Current SMD (VDC) (VDC) (mA) (%) 2B0503NXT 5 3.3 606 70-75 Efficiency FEATURES 2B0903NXT 9 3.3 606 70-75 2B1203NXT 12 3.3 606 70-75 1kVDC Isolation 2B1503NXT 15 3.3 606 70-75 2B2403NXT 24 3.3 606 70-75 2B0505NXT 5 5 400 80-85 UL94V-0 Package Material 2B0905NXT 9 5 400 80-85 2B1205NXT 12 5 400 80-85 Toroidal Magnetics 2B1505NXT 15 5 400 80-85 2B2405NXT 24 5 400 80-85 2B0509NXT 5 9 222 80-85 2B0909NXT 9 9 222 80-85 2B1209NXT 12 9 222 80-85 2B1509NXT 15 9 222 80-85 2B2409NXT 24 9 222 80-85 2B0512NXT 5 12 167 80-85 2B0912NXT 9 12 167 80-85 2B1212NXT 12 12 167 80-85 2B1512NXT 15 12 167 80-85 2B2412NXT 24 12 167 80-85 2B0515NXT 5 15 133 80-85 2B0915NXT 9 15 133 80-85 2B1215NXT 12 15 133 80-85 2B1515NXT 15 15 133 80-85 2B2415NXT 24 15 133 80-85 2B0524NXT 5 24 83 80-85 2B0924NXT 9 24 83 80-85 2B1224NXT 12 24 83 80-85 2B1524NXT 15 24 83 80-85 2B2424NXT 24 24 83 80-85 2A0505NXT 5 ±5 ±200 70-75 2A0905NXT 9 ±5 ±200 70-75 2A1205NXT 12 ±5 ±200 70-75 2A1505NXT 15 ±5 ±200 70-75 2A2405NXT 24 ±5 ±200 70-75 2A0509NXT 5 ±9 ±111 75-78 2A0909NXT 9 ±9 ±111 75-78 2A1209NXT 12 ±9 ±111 75-78 2A1509NXT 15 ±9 ±111 75-78 2A2409NXT 24 ±9 ±111 75-78 2A0512NXT 5 ±12 ±83 75-83 2A0912NXT 9 ±12 ±83 75-83 2A1212NXT 12 ±12 ±83 75-83 2A1512NXT 15 ±12 ±83 75-83 2A2412NXT 24 ±12 ±83 75-83 2A0515NXT 5 ±15 ±66 75-85 2A0915NXT 9 ±15 ±66 75-85 2A1215NXT 12 ±15 ±66 75-85 2A1515NXT 15 ±15 ±66 75-85 2A2415NXT 24 ±15 ±66 75-85 2A0524NXT 5 ±24 ±42 78-85 2A0924NXT 9 ±24 ±42 78-85 2A1224NXT 12 ±24 ±42 78-85 2A1524NXT 15 ±24 ±42 78-85 2A2424NXT 24 ±24 ±42 78-85 ◆ ◆ ◆ ◆ ◆ Internal SMD Construction Efficiency to 85% MODEL SELECTION ① ② ③ ④ ⑤ ⑥ 2A 05 05 N X T ①Product Series ③Output Voltage ⑤Fixed Input ②Input Voltage ④No Pin ⑥SMD Package APPLICATIONS Compared to standard 2 Watt packages, space savings of 80% respectively 77% are achieved by these 2A-NXT&2B-NXT SMD Miniature DC/DC Converters. They have been specifically designed for applications where board space is at a premium,since these 2 Watt converters have only a slightly larger foot print than conventional 1 Watt converters. At efficiencies up to 80%, external cooling is not needed, as the full output power is available over the operating temperature range -40°C to +85°C. All converters have an I/O-Isolation of 1kVDC, allowing making them suitable for many applications. MICRODC R ESERVES THE COPYRIGHT http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 4 2A-NXT&2B-NXT Series Specifications (Core Operating Area) Input Voltage Range ±10 Output Voltage Accuracy ±5 Line Voltage Regulation 1.2%/1% of Vin max. Load Voltage Regulation 3.3V output types 20% max. (10% to 100% full load) 5V output type 15% max. 9V, 12V, 15V, 24V output types 10% max. Output Ripple and Noise (20MHz limited) 150mVp-p max. Operating Frequency 20kHz min. / 50kHz typ. / 85kHz max. Efficiency at Full Load 70% min. / 80% typ. No Load Power Consumption B-NXT typ. 124mW min. / 186mW typ. / 250mW max. A-NXT typ. 159mW min. / 192mW typ. / 240mW max. Isolation Voltage (tested for 1 second) 1000VDC min. Rated Working Voltage (long term isolation) see Application Notes Isolation Capacitance 40pF min. / 115pF max. Isolation Resistance 10 GΩ min. Short Circuit Protection 1 Second Operating Temperature Range (free air convection) -40℃ to +85℃ (see Graph) Storage Temperature Range -55℃ to +125℃ Reflow Temperature ROHS compliant (for more details see Application Notes) 245℃ (30 sec) max. Relative Humidity MSL Level 1 95% RH Package Weight B-NXT types 2.1g A-NXT types 2.5g Detailed Information see using MIL-HDBK 217F 886 x 103 hours Application Notes chapter "MTBF" using MIL-HDBK 217F 128 x 103 hours MTBF (+25℃) (+85℃) } Typical Characteristics AXX05NXT http://www.microdc.cn AXX12NXT AXX15NXT Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 4 2A-NXT&2B-NXT Series Typical Characteristics http://www.microdc.cn BXX05NXT BXX09NXT BXX12NXT BXX15NXT Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 3 of 4 2A-NXT&2B-NXT Series Derating-Graph(Ambient Temperature) Package Style and Pinning (mm) RoHS COMPLIANT INFORMATION Microdc Professional Power Module,Inc. This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C Tel:0086-20-86000646 E-mail:[email protected] for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Website:http://www.microdc.cn Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are Microdc Professional Power module,Inc.makes no representation that backward compatible with Sn/Pb soldering systems. the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or REACH COMPLIANT INFORMATION future patent rights. Specifications are subject to change without notice. This series has proven that this product does not contain harmful chemicals, it also has harmful chemical ©2010 substances through the registration, inspection and approval. Microdc Professional Power Module, Inc. Guangzhou http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 4 of 4