APC18T12-9J

Technical Reference Notes APC18T12 Series APC18T12 Series: 12Vin / 18A Non-Isolated Point-of-Load The APC18 DC-DC Power Module is a high efficiency non-isolated buck converter designed for use in a wide variety of applications. Packaged in an industry standard recognized SMT footprint: 1.3” x 0.53”, it works from a wide input voltage range of 10V to 14V and offers a wide adjustable output range of 0.75V to 5.5V through external resistor programming. Electrical Parameters Input Input Range Input Surge 10-14VDC 15V / 100ms Control Enable TTL compatible (Positive or Negative Logic Enable Options) Output Special Features • • • • • • • • Industry Standard SMT Footprint High Efficiency up to 95% at 5V output Adjustable output through external resistor programming Low output ripple and noise Input UVLO Fixed Switching Frequency Positive Enable Remote Sense pin Load Current Line/Load Regulation Ripple and Noise Output Voltage Adjust Range Transient Response Up to 18A max (Po ≤ 75W) < 1% VO 50mVP-P Typ 0.75 – 5.5VO 250mV Typ deviation 50% step 100µs settling time (Typ) +10%VO 120% max 130% max 110 °C Remote Sense Over Current Protection Over Voltage Protection Over Temperature Protection Environmental Specifications • • • -40ºC to 85ºC Operating Temperature -40ºC to 125ºC Storage Temperature MTBF > 1 million hours Safety UL + cUL 60950, Recognized EN60950 through TUV-PS MODEL: APC18T12 SERIES NOVEMBER 4, 2004 - REVISION 00 SHEET 1 OF 10 Technical Reference Notes APC18T12 Series Electrical Specifications ABSOLUTE MAXIMUM RATINGS Stresses in excess of the absolute maximum ratings can cause permanent damage to the converter. Functional operation of the device is converter is not implied at these or any other conditions in excess of those given in the operational section of the specs. Exposure to absolute maximum ratings for extended period can adversely affect device reliability. Parameter Input Voltage Continuous Transient (100ms) Isolation Voltage Input to Output Operating Temperature Storage Temperature Operating Humidity Max Voltage at Enable Pin Max Output Power Device All Symbol VIN VIN, trans Min NA -40 -40 10 - Typ - Max 14 15 85 125 85 15 80 Unit Vdc All All All All All Ta TSTG - ºC ºC % Vdc W INPUT SPECIFICATION Parameter Operating Input Voltage Range Input Under-Voltage Lock-out T_ON Threshold T_OFF Threshold Input Current1 (VIN = VIN, Min; IO = IO, Max) Max Pdiss @ IO = 0A (VIN = VIN, Nom) Input Ripple Current2 5Hz to 20MHz Device All All All 5.50Vo 0.75Vo All IIN-MAX Symbol VIN Min 10.0 9.0 8.0 Typ 12.0 Max 14.0 10.8 9.9 9.5 2 0.5 Unit Vdc Vdc A W mAp-p II1 300 MODEL: APC18T12 SERIES NOVEMBER 4, 2004 - REVISION 00 SHEET 2 OF 10 Technical Reference Notes APC18T12 Series Electrical Specifications (continued) OUTPUT SPECIFICATIONS Parameter Output Voltage Set point VIN = VIN, MIN to VIN,MAX; IO =IO,Max Output Regulation Line: VIN = VIN, min to VIN, max Load: IO = IO, min to IO, max Temp: TA = -40 ºC to +85ºC Ripple and Noise4 Peak-to-Peak: (5Hz to 20MHz) Output Current5 External Load Capacitance Cap ESR = 1 mO Cap ESR = 10 mO Output Current-limit Inception6 Over Temperature Range6 (AVG. PCB TEMP, measured at R11 location) Device Symbol VO,SET Min 0.735 Typ 0.75 Max 0.765 Unit Vdc All All All All All All All All 0.75V 1.20V 1.50V 1.80V 2.50V 3.30V 5.00V All All All All IO 0 15 50 - 0.5 30 0.5 75 18 1000 5000 % % mV % % mVp-p A µF µF °C % % % % % % % ms ms kHz IO 95 η η η η η η η 76.0 83.0 85.5 87.0 89.5 91.5 93.5 - 150% 78.0 84.5 87.0 88.5 91.0 92.5 94.5 3 300 5 -0.5 120 6 8 Efficiency VIN = VIN-NOM IO = IO,MAX ; TA=25°C Output voltage rise time VIN = VIN-MIN to VIN-MAX Enable to Output Turn-ON Delay VIN = VIN-MIN to VIN-MAX IO = IO,MIN to IO,MAX Switching Frequency Output Turn-on Overshoot Output Turn-off undershoot (Passive Resistive Full Load) Output Enable ON/OFF Positive Enable* Enable Pin Voltage: Mod-ON Mod-OFF %Vo V All - 2.6 0 - 15 0.8 V V MODEL: APC18T12 SERIES NOVEMBER 4, 2004 - REVISION 00 SHEET 3 OF 10 Technical Reference Notes APC18T12 Series Electrical Specifications (continued) OUTPUT SPECIFICATIONS Parameter Dynamic Response8 (CO = 10uF Tantalum + 1uF Ceramic) Load Change of 50% step anywhere between 10% to 100% of rated load Peak Deviation Settling Time to VO, Nom