Features Industry standard SMT package Output voltage programmable from 0.75 Vdc to 5.5 Vdc via external resistor 5 A output current Up to 92 % efficiency Small size, low profile Cost-efficient Low output ripple and noise High reliability Remote on/off Output overcurrent protection (non-latching) MX5A-12SA SMT Non-Isolated Power Module Description Bourns(R) MX5A-12SA is a non-isolated DC-DC converter offering designers a cost and space-efficient solution with standard features such as remote on/off, precisely regulated programmable output voltage and overcurrent protection. Specifications Parameter Min. Nom. Max. Units 10 12 14 Vdc 3.5 Adc 2.4 0.4 Vin Vdc Vdc 0.75 5.5 Current 0.0 5.0 Vdc Adc Voltage Setpoint Accuracy -2.0 Notes INPUT Voltage Current Remote ON/OFF: Low or Open = On High = Off 10 A max. 1 mA max. OUTPUT Voltage Adjustment Range Line Regulation 2.0 0.3 Load Regulation 0.4 Temperature Regulation 0.4 Ripple (pk-pk) (20 MHz Bandwidth) 50 Ripple (rms) 15 Dynamic Load Response: 50 % to 100 % Load or 100 % to 50 % Load; (i/t = 2.5 A/s; 25 C) 50 % to 100 % Load or 100 % to 50 % Load; (i/t = 2.5 A/s; 25 C) % Vo,set % Vo,set % Vo,set % Vo,set 0 to +85 C 75 mVpk-pk 1 F ceramic//10 F tantalum capacitors 30 mVrms 1 F ceramic//10 F tantalum capacitors 200 25 mV s 1 F ceramic//10 F tantalum capacitors 50 50 mV s 10,000 kHrs 2 x 150 F polymer capacitors GENERAL MTBF Operating Temperature -40 +85 C Storage Temperature -55 +125 C Switching Frequency 300 Efficiency 81.5 % 84.0 % 85.0 % 87.0 % 89.0 % 92.0 % (Vin = 12 Vdc, TA= 25 C, Full Load) kHz Vo,set = 1.2 Vdc Vo,set = 1.5 Vdc Vo,set = 1.8 Vdc Vo,set = 2.5 Vdc Vo,set = 3.3 Vdc Vo,set = 5.0 Vdc Applications Intermediate Bus architecture Distributed power applications Workstations and servers Telecom equipment Enterprise networks including LANs/WANs Latest generation ICs (DSP, FPGA, ASIC) and microprocessor powered applications Specifications are subject to change without notice. Customers should verify device performance in their specific applications. Output Voltage Programming Via external trim resistor between Trim and GND: Rtrim = [ Via application of external voltage between Trim and GND: ] 10.5 - 1.0 k Vo - 0.7525 Vtrim = (0.7 - 0.0667 x {Vo - 0.7525}) MX5A-12SA SMT Non-Isolated Power Module Product Dimensions Recommended Pad Layout BOTTOM VIEW 20.3 (0.80) 4.57 (0.180) 4.06 (0.160) 4.06 (0.160) VOUT 4.57 (0.180) 4.83 (0.190) GND TRIM VOUT 8.64 (0.340) 1.5 (0.06) 2.29 (0.090) TRIM 4.06 (0.160) 4.83 (0.190) GND 8.89 (0.350) 0.25 (0.010) ON/OFF 1.5 (0.06) 1.3 (0.05) ON/OFF VIN 17.53 (0.690) 8.64 (0.340) 11.43 (0.450) 8.89 (0.350) 1.47 (0.058) 4.06 (0.160) RECOMMENDED PAD SIZE: VIN 2.41 3.05 X MIN. (0.120) (0.095) 3.43 2.79 X MAX. (0.135) (0.110) Pick and Place Location 1.3 (0.05) 11.43 (0.450) SIDE VIEW 5.84 (0.230) MAX. DIMENSIONS: MM (INCHES) 6.22 (0.245) 5.56 (0.219) REF. 9.65 (0.380) TOLERANCES: 20.3 (0.80) 0.5 (0.02) 0.25 DECIMAL .XX (0.010) DECIMAL .X How to Order M X 5A - 12 S A L1 INDUCTOR Configuration * M = Surface Mount Device 1.57 (0.062) Internal Identifier Output Current (Amps) Derating Output Current vs. Local Ambient Temp & Airflow (Vin = 12 Vdc, Vo = 3.3 Vdc) Output Current (A) 6 1.0 m/s (200 LFM) 5 4 Input Voltage (V) Outputs * S = Single Output Voltage (V) * A = Adjustable Fixed output voltage parts and optional features available; contact factory. 0.5 m/s (100 LFM) NC (0 LFM) 3 2 1 0 25 30 35 40 45 50 55 60 65 70 Ambient Temperature (C) 75 80 85 Reliable Electronic Solutions Asia-Pacific: Tel: +886-2 2562-4117 * Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 * Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 * Fax: +1-951 781-5700 www.bourns.com REV. A 02/05 Specifications are subject to change without notice. Customers should verify device performance in their specific applications.