PL IA NT Features CO M ■ *R oH S ■ ■ ■ ■ ■ Industry standard SMT package Output voltage programmable from 0.75 Vdc to 3.6 Vdc via external resistor 5 A output current Up to 94 % efficiency Small size, low profile Cost-efficient ■ ■ ■ ■ Low output ripple and noise High reliability Remote on/off Output overcurrent protection (non-latching) MX5A-3-5SA SMT Non-Isolated Power Module Description Bourns® MX5A-3-5SA 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 Notes 5.5 Vdc Vin min. = Vo + 0.5 V for Vo > 2.5 V 5.0 Adc INPUT Voltage 3.0 Current Remote ON/OFF: Low or Open = On High = Off OUTPUT Voltage Adjustment Range Current Voltage Setpoint Accuracy Line Regulation Load Regulation Temperature Regulation E T E L O S B O 2.4 0.4 Vin Vdc Vdc 0.75 3.63 0.0 5.0 Vdc Adc -2.0 2.0 0.3 0.4 10 µA max. 1 mA max. % Vo,set % Vo,set % Vo,set % Vo,set 0.4 Ripple (pk-pk) (20 MHz Bandwidth 40 50 mVpk-pk 1 µF ceramic//10 µF tantalum capacitors Ripple (rms) 10 15 mVrms 1 µF ceramic//10 µF tantalum capacitors 1 µF ceramic//10 µF tantalum capacitors Dynamic Load Response: 50 % to 100 % Load or 100 % to 50 % Load; (∆i/∆t = 2.5 A/µs; 25 °C) 130 25 mV µs 50 % to 100 % Load or 100 % to 50 % Load; (∆i/∆t = 2.5 A/µs; 25 °C) 50 50 mV µs 10,000 kHrs 2 x 150 µF polymer capacitors GENERAL MTBF Operating Temperature -40 +85 Storage Temperature -55 +125 Switching Frequency 300 Efficiency (Vin = 5 Vdc, TA= 25 °C, Full Load) °C °C kHz 79.0 % 85.0 % 87.0 % 90.0 % 92.0 % 94.0 % Vo,set = 0.75 Vdc 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 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 *RoHS Directive 2002/95/EC Jan 27 2003 including Annex. 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: ] 21.07 - 5.11 kΩ Vo - 0.7525 Vtrim = (0.7 - 0.1698 x {Vo - 0.7525}) MX5A-3-5SA SMT Non-Isolated Power Module Product Dimensions Recommended Pad Layout 17.53 (0.690) BOTTOM VIEW 20.3 (0.80) 4.83 (0.190) 4.57 (0.180) 4.57 (0.180) 4.83 (0.190) VOUT GND TRIM VOUT 11.43 (0.450) 8.89 (0.350) TRIM GND 8.64 (0.340) 8.89 (0.350) 8.64 (0.340) 0.25 (0.010) ON/OFF E T E L O S B O ON/OFF VIN 1.47 (0.058) 4.06 (0.160) 4.06 (0.160) 4.06 (0.160) 4.06 (0.160) 1.5 (0.06) 1.3 (0.05) 1.5 (0.06) 2.29 (0.090) RECOMMENDED PAD SIZE: VIN 3.05 2.41 X MIN. (0.120) (0.095) 3.43 2.79 X MAX. (0.135) (0.110) 1.3 (0.05) Pick and Place Location SIDE VIEW 5.84 (0.230) MAX. DIMENSIONS: MM (INCHES) 11.43 (0.450) 5.56 (0.219) REF. TOLERANCES: 0.5 (0.02) 0.25 DECIMAL .XX ± (0.010) DECIMAL .X ± 6.22 (0.245) 9.65 (0.380) 20.3 (0.80) L1 INDUCTOR How to Order M X 5A - 3 - 5 S A 1.57 (0.062) Configuration • M = Surface Mount Device Derating Output Current vs. Local Ambient Temp & Airflow Output Current (Amps) (Vin = 5.0 Vdc, Vo = 3.3 Vdc) Input Voltage (V) 6 Output Current (A) Internal Identifier 1.0 m/s (200 LFM) 5 4 NC (0 LFM) 0.5 m/s (100 LFM) 3 Outputs • S = Single Output Voltage (V) • A = Adjustable Fixed output voltage parts and optional features available; contact factory. 2 1 0 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (°C) 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. B 12/05 Specifications are subject to change without notice. Customers should verify device performance in their specific applications.