K78XXM-1000 Series WIDE INPUT NON-ISOLATED & REGULATED SINGLE OUTPUT FEATURES RoHS PRODUCT PROGRAM ● Efficiency up to 93% Input Voltage(VDC) ● Operating tem. range : -40°C ~ +85°C Part Number ● Low ripple and noise ● Micro miniature SIP package, meet UL94-V0 requirement ● No heatsink required ● Industry standard pinout ● MTBE>2000KHours Efficiency (%)(Typ.) Nominal Range Voltage (VDC) Current (mA) Vin (min.) Vin (max.) K7801M-1000 12 4.75-18 1.5 1000 78 72 K78X2M-1000 12 4.75-18 1.8 1000 82 76 K7802M-1000 12 4.75-18 2.5 1000 87 82 K7803M-1000 12 4.75-20 3.3 1000 90 83 K7805M-1000 12 6.5-20 5.0 1000 93 85 ● Pin-out compatible with LM78XX Linear ● Short circuit protection, thermal shutdown Output OUTPUT SPECIFICATIONS APPLICATIONS The K78xxM-1000 series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. The efficiency of up to 93% means that very little Item Test conditions Typ. Max. *Output voltage accuracy 100% full load, input voltage range ±2 ±3 Line regulation Vin=min. to max, at full load ±0.5 ±0.75 Load regulation 10% to 100% load ±0.5 ±1.0 Ripple & Noise 20MHz bandwidth, (refer to figure 3) 25 45 energy is wasted as heat so there is no need for any heatsinks with their additional space and Short circuit protection Thermal shutdown mounting costs. Min. Internal IC junction mVp-p Full load, input voltage range 335 150 °C 3000 mA 385 Dynamic load stability Quiescent current % Continuous, auto-recovery Output current limit Switching frequency Units Vin from min to max and at 0% load 7 435 KHz ±100 mV 10 mA MODEL SELECTION Temperature coefficient -40°C ~ +85°C ambient ±0.02 %/°C K7805M-1000 Max capacitance load 1000 μF Output Current Package Style Output Voltage Product Series *K7803M-1000 is ±3.5%(MAX) COMMON SPECIFICATIONS Item Test Conditions Min. Typ. Storage humidity range MORNSUN Science & Technology Co.,Ltd. Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China. Tel: 86-20-28203030 Fax:86-20-28203068 Http://www.mornsun-power.com Max. Units 95 % Operating temp. range Power derating (above 71°C) -40 85 Storage temp. range -55 125 Operating case temp. Lead temperature 1.5mm from case for 10 seconds 300 Cooling Free air convection Case material MTBF °C 100 Plastic (UL94-V0) (25℃,MIL-HDBK-217F) Weight The copyright and authority for the interpretation of the products are reserved by MORNSUN 2000 k hours 2.0 g Specifications subject to change without notice. K78XXM-1000 A/4 -2011 Page 1 of 4 TYPICAL CHARECTERISTICS EXTERNAL CAPACITOR TABLE Temperature Derating Graph Operating Temp.( C ) Part Number C1 (Ceramic capacitor) C2 (Ceramic capacitor) K7801M-1000 10µF/25V 22µF/6.3V K78X2M-1000 10µF/25V 22µF/6.3V K7802M-1000 10µF/25V 22µF/10V K7803M-1000 10µF/25V 22µF/16V K7805M-1000 10µF/25V 22µF/16V (figure 1) TYPICAL APPLICATION CIRCUIT 1 K78XXM-1000 3 +Vin +Vout 2 C1 C2 GND GND (figure 2) Note: 1. C1 and C2 are required and should be fitted close to the converter pins. 2. The capacitance of C1,C2 sees external capacitor table, it can be increased properly if required, and tantalum or low ESR electrolytic capacitors may also suffice. 3. No parallel connection or plug and play. TEST CONFIGURATIONS (TA=25°C) 1 Efficiency and Output Voltage Ripple Test 2 5 .4 mm 2 5 .4 mm 1 2 .7 mm DC/DC Converter Copper st rip 1μ F 2 C1 +Vout 3 C2 1 0μ F C e ra mic Tantalum S cope Lo ad 1 2 .54 mm +Vin GND Copper st rip (figure 3) Start-up and Load Transient Response Test 5 0.8 mm 1 C1 DC/DC Converter 3 2 Copper strip +Vout Scope C2 L oad +Vin 2 .5 4 m m 2 GND Copper strip (figure 4) The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78XXM-1000 A/4 -2011 Page 2 of 4 OUTPUT RIPPLE REDUCTION 1 DC/DC Converter 3 2 C1 L +Vout C2 22μ F Lo ad +Vin GND To reduce output ripple, it is recommended to add a LC filter in output port. L: Recommended parameter 10μH ~ 47μH. (figure 5) CHARACTERISTICS Efficiency Ripple Efficiency (%) 100 Ripple(mV) 30 90 25 80 70 K7801M-1000 60 K78X2M-1000 50 K7802M-1000 40 K7803M-1000 30 20 K7801M-1000 15 K78X2M-1000 K7802M-1000 10 K7803M-1000 K7805M-1000 20 K7805M-1000 5 10 0 4.75 5 0 6 6.5 7.2 8 9 10 12 15 18 20 Vin(V) 4.75 5 Efficiency VS Vin(Full Load) 6 6.5 7.2 8 9 10 12 15 18 20 Vin(V) Ripple VS Vin(Full Load) Efficiency (%) Ripple(mV) 30 100 90 25 80 70 K7801M-1000 60 K78X2M-1000 50 K7802M-1000 40 K7803M-1000 30 K7805M-1000 20 20 K7801M-1000 K78X2M-1000 15 K7802M-1000 10 K7803M-1000 K7805M-1000 5 10 0 100 200 300 400 500 600 700 800 900 1000 Load(mA) Efficiency VS Load(Vin=Vin-nominal) 0 100 200 300 400 500 600 700 800 900 1000 Load(mA) Ripple VS Load(Vin=Vin-nominal) The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78XXM-1000 A/4 -2011 Page 3 of 4 OUTLINE DIMENSIONS & FOOTPRINT DETAILS 7.50[0.295] RECOMMENDED FOOTPRINT 11.60 [0.457] (Side View ) 4.10[0.161] 1 2 3 5.08 [0.200] 0.50 [0.020] 5.08 [0.200] 1.80[0.071] (Front View) 10.20 [0.402] 0.50[0.020] MECHANICAL DIMMENSIONS Φ1.00 [0.039] Note: grid:2.54*2.54mm . 7.50[0.295] 1.80[0.071] TUBE OUTLINE DIMENSIONS 11.60 [0.457] 16.70[0.657] 3 0.30[0.012] 1 2 (Bottom View) Note: Unit:mm[ inch] Pin section tolerances:±0.10 mm[±0.004 inch] General tolerances:±0.25 mm[±0.010 inch] FOOTPRINT DETAILS Pi n Function 1 +Vi n 2 GND 3 +Vout 12.20 [0.480] 9.40 [0.370] 4.70 [0.185] Note: Unit : mm[inch] General tolerance ： ±0.50mm[±0.020inch] L=530mm[20.866 inch] L=220mm[8.661inch] Packaging quantity:43pcs Packaging quantity:17pcs Short tube inner packaging dimensions: L*W*H=255*170*80mm; Short tube outer packaging dimensions (with six inner packaging boxes): L*W*H=375*280*270mm; Long tube inner packaging dimensions: L*W*H=580*200*100mm; Long tube outer packaging dimensions(with two inner packaging boxes) ： L*W*H=600*215*220mm; Long tube outer packaging dimensions(with three inner packaging boxes)： L*W*H=600*215*325mm. Note: 1. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. Only typical models listed, other models may be different, please contact our technical person for more details. The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78XXM-1000 A/4 -2011 Page 4 of 4