LF200S Series Ultra-Miniature, 2W Single Output SMT DC/DC Converters Electrical Specifications Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice. Input Key Features: • 2W Output Power • Ultra-Miniature SMT Case • 1,000 VDC Isolation • 5V, 12 & 24V Inputs • -40ºC to +85ºC Operation • 6 Standard Models • 2.0 MH MTBF Minimum • Industry Standard Pin-Out Parameter Conditions Input Voltage Range Min. Typ. Max. 5 VDC Input 4.5 5.0 5.5 12 VDC Input 10.8 12.0 13.2 24 VDC Input 21.6 24.0 26.4 Reverse Polarity Input Current Input Filter VDC 0.3 A Typ. Max. Units ±1.5 ±4.0 % ±1.2 ±1.5 % Capacitor Output Parameter Conditions Min. Output Voltage Accuracy Line Regulation For Vin Change of 1% Load Regulation (Note 1) See Model Selection Guide Ripple & Noise (20 MHz) (Note 2) Ripple & Noise (20 MHz) 50 Over Line, Load & Temp. Ripple & Noise (20 MHz) Output Power Protection 75 mV P - P 150 mV P - P 5 mv rms ±0.02 %/ºC Max. Units 120 Temperature Coefficient % ±0.01 Output Short Circuit RoHS Compliant Units Momentary (0.5 Sec.) General Parameter Conditions Isolation Voltage Min. 60 Seconds Isolation Resistance 500 VDC Isolation Capacitance Typ. 1,000 VDC 10 100 kHz, 1V GΩ 60 100 pF 70 100 120 kHz Conditions Min. Typ. Max. Units Operating Temperature Range Ambient -40 +25 +85 ºC Operating Temperature Range Case -40 +90 ºC -40 +125 ºC 95 % Switching Frequency Environmental Parameter Storage Temperature Range Cooling MicroPower Direct Humidity 292 Page Street Suite D Stoughton, MA 02072 USA Physical T: (781) 344-8226 F: (781) 344-8481 E: [email protected] W: www.micropowerdirect.com Reliability Specifications Free Air Convection RH, Non-condensing Case Size 0.50 x 0.36 x 0.34 Inches (12.7 x 9.3 x 8.7 mm) Case Material Molding (UL94-V0) Weight Parameter MTBF 0.05 Oz (1.5g) Conditions Min. MIL HDBK 217F, 25ºC, Gnd Benign 2.0 Conditions Min. Typ. Max. Units MHours Absolute Maximum Ratings Parameter Input Voltage Surge (1 Sec) Lead Temperature Internal Power Dissipation Typ. Max. 5 VDC Input -0.7 9.0 12 VDC Input -0.7 18.0 24 VDC Input -0.7 30.0 Units VDC 1.5 mm From Case For 10 Sec. 300 ºC All Models 650 mW Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings. Model Selection Guide Model Number LF201S LF202S LF211S LF212S LF221S LF222S Input Output Load Voltage (VDC) Current (mA) Voltage Current Current Regulation Nominal Range Full-Load No-Load (VDC) (mA, Max) (mA, Min) (%, Max) 5 4.5 - 5.5 519 60 5.0 400.0 8.0 11 5 4.5 - 5.5 488 60 12.0 165.0 3.0 11 12 10.8 - 13.2 213 30 5.0 400.0 8.0 8 12 10.8 - 13.2 201 30 12.0 165.0 3.0 5 24 21.6 - 26.4 106 15 5.0 400.0 8.0 8 24 21.6 - 26.4 101 15 12.0 165.0 3.0 5 Notes: 1. Load regulation is measured for an output change of 20% to 100%. 2. When measuring output ripple, it is recommended that an external 0.33 μF ceramic capacitor be placed from the +Vout pin to the -Vout pin. For noise sensitive applications, the use of 1.5 μF capacitors will reduce the output ripple. 3. Operation at no-load will not damage these units. However, they may not meet all specifications. 4. The converter should be connected to a low ac-impedance source. An input source with a highly inductive impedance may affect the stability of the converter. In applications where the converter output loading is high and input power is supplied over long lines, it may be necessary to use a capacitor on the input to insure start-up. In this case, it is recommended that a low ESR (ESR <1.0Ω at 100 kHz) capacitor be mounted close to the converter. For 5V input units a 2.2 μF is recommended, for 12V input units, a 1.0 μF and for 24V input models, a 0.47 μF. 5. It is recommended that a fuse be used on the input of a power supply for protection. See the table above for the correct rating. Efficiency (%, Typ) 77 81 78 82 78 81 Fuse Rating Slow-Blow (mA) 1,000 1,000 500 500 200 200 Derating Curve Board Layout Mechanical Dimensions Capacitive Load Output 5 VDC 12 VDC μF Max 47 μF 10 μF Pin Connections Pin Description 1 -Vin 2 +Vin 3 No Pin 4 -Vout 5 +Vout 6 No Pin 7 No Pin 8 NA NA = Not for electrical connection Notes: • All dimensions are typical in inches (mm) • Tolerance x.xx = ±0.01 (±0.25) • Pin 1 is marked by a “dot” or indentation on the unit MicroPower Direct www.micropowerdirect.com 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: [email protected]