K78XX-2000(L) Series WIDE INPUT NON-ISOLATED & REGULATED SINGLE OUTPUT FEATURES RoHS PRODUCT PROGRAM ● Efficiency up to 92%,No heatsink required ● 2A large current output ● Operating temperature : -40°C ~ +85°C ● Short circuit protection, thermal shutdown ● Low ripple and noise ● Micro miniature SIP package, meet UL94-V0 requirement ● Ultra low power loss ● Industry standard pinout ● Pin-out compatible with LM78XX Linear ● MTBE>2000,000Hours Input Voltage(VDC) Part Number Output Efficiency (%)(Typ.) Current (mA) Vin (min.) Vin (max.) Nominal Range Voltage (VDC) K7801-2000(L) 12 4.75-18 1.5 2000 79 76 K78X2-2000(L) 12 4.75-18 1.8 2000 81 79 K7802-2000(L) 12 4.75-18 2.5 2000 85 83 K7803-2000(L) 12 4.75-18 3.3 2000 87 86 K7805-2000(L) 12 7-18 5 2000 91 88 K78X6-2000(L) 12 8.5-18 6.5 2000 92 91 Add suffix “L” for 90° bend pins, for example: K7805-2000L. OUTPUT SPECIFICATIONS Item Test conditions Min. Typ. Max. APPLICATIONS Output voltage accuracy 100% full load, input voltage range Upgraded K78xx-2000(L) series switching regulators are ideal replacement for K78xx linear regulators and LDOs. The efficiency of up to 92% means that very little energy is wasted as heat so there is no need for any heat sinks with their additional space and mounting costs. They are widely used in industrial control, instrumentation, and electric power applications. Line regulation ±2 ±3 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 6) 25 45 mVp-p 0.5 1.8 W Short circuit input power Short circuit protection Thermal shutdown % Continuous, auto-recovery Internal IC junction Output current limit Switching frequency Units Full load, input voltage range 300 150 °C 5000 mA 340 380 KHz 5 10 mA Temperature coefficient -40°C ~ +85°C ambient ±0.03 %/°C MODEL SELECTION Max capacitance load 1000 μF K7805-2000 *Test ripple and noise by “parallel cable” method. Quiescent current COMMON SPECIFICATIONS O utp ut Curren t O utpu t Voltag e Operating temp. range -40~+85 ℃(above 71°C power derating) P ro du ct Se rie s Operating case temp. +100 ℃(max) Storage temp. range -55~+125 ℃ Cooling Free air convection Lead temperature** 300 ℃(max) Storage humidity range ≤ 95% Case material Plastic(UL94-V0) MTBF > 2000k hours (25℃,MIL-HDBK-217F) Weight 4.0g Conducted emissions (Refer to Figure 5) EN55022 CLASS B Radiated emissions EN55022 CLASS B ESD EN61000-4-2 Criteria B 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 Level 3 6kV/8kV perf. **1.5mm from case for 10 seconds The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78XX-2000(L) A/2 -2011 Page 1 of 4 TYPICAL CHARECTERISTICS EXTERNAL CAPACITOR TABLE Temperature Derating Graph Operating Temp.( C ) (figure 1) TYPICAL APPLICATION CIRCUIT Part Number C1 (Ceramic capacitor) C2 (Ceramic capacitor) K7801-2000(L) 10µF/25V 22µF/6.3V K78X2-2000(L) 10µF/25V 22µF/6.3V K7802-2000(L) 10µF/25V 22µF/6.3V K7803-2000(L) 10µF/25V 22µF/6.3V K7805-2000(L) 10µF/25V 22µF/16V K78X6-2000(L) 10µF/25V 22µF/16V 1 K78XX-2000(L) 3 +Vin C1 +Vout C2 2 GND GND (figure 2) Note: 1. C1 and C2 are required and should be fitted close to the converter pins. 2. The capacitance of C1and 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. INPUT FILTER CIRCUIT CONNECT 10uH-47uH +Vin Vin Vo +Vout GND 10uF 10uF GND GND (figure 3) OUTPUT FILTER CIRCUIT CONNECT 10uH-47uH +Vin Vin Vo GND 10uF 10uF 22uF RL GND (figure 4) EMC RECOMMENDED CIRCUIT 1mH +Vin Vin GND +Vo ut GND 2.2u F 330 uF Vo 1 uF GND 1mH (figure 5) The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78XX-2000(L) A/2 -2011 Page 2 of 4 TEST CONFIGURATIONS (TA=25°C) 1 Efficiency and Output Voltage Ripple Test 2 5.4 mm 2 5.4 mm 12.7mm DC/DC Converter +Vou t 3 Cop pe r s trip 1μ F 2 C1 10μ F Ce ramic Tan talum C2 Sc ope Load 1 2 .54 mm +Vin GND Cop pe r s trip (figure 6) 2 Start-up and Load Transient Response Test 5 0.8 m m DC/DC Converter Copper strip 3 2 C1 +Vo ut Scope C2 Lo ad 1 2 . 54 m m +Vin GND Copper strip (figure 7) CHARACTERISTICS CURVE Efficiency Ripple Efficiency VS.Vin (full load) Ripple VS. Vin(full load) Efficiency(%) 100 95 90 K7801-2000 85 K78X2-2000 80 K7802-2000 75 K7803-2000 70 K7805-2000 65 60 K78X6-2000 55 50 4.75 5 6 6.5 7.2 8 9 10 12 15 18 20 Vin(V) Ripple(mV) 45 40 35 30 25 K7801-2000 20 15 10 K7803-2000 K7805-2000 K78X2-2000 K7802-2000 K78X6-2000 5 0 4.75 5 6 6.5 7.2 8 9 10 12 15 18 20 Vin(V) Efficiency VS. Load(Vin=12V) Efficiency(%) 100 95 90 85 80 75 70 65 60 55 50 200 400 600 800 1000 1200 1400 1600 1800 2000 Ripple VS. Load(Vin=12V) Ripple(mV) 45 40 K7801-2000 35 K7801-2000 30 K7802-2000 K78X2-2000 25 K7803-2000 K7802-2000 20 K7803-2000 K7805-2000 15 K7805-2000 K78X6-2000 10 K78X6-2000 K78X2-2000 5 0 Load(mA) 200 400 600 800 1000 1200 1400 1600 1800 2000 The copyright and authority for the interpretation of the products are reserved by MORNSUN Load(mA) Specifications subject to change without notice. K78XX-2000(L) A/2 -2011 Page 3 of 4 OUTLINE DIMENSIONS & FOOTPRINT DETAILS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT K78XX-2000 K78XX-2000 4.10[0.161] 1 2 3 11.50 [0.453] 5.08[0.200] K78XX-2000L 1 2 3 11.50[0.453] 11.50 [0.453] 17.50[0.689] 1.35[0.053] 3 2 1 0.30[0.012] 5.08[0.200] Ф1.00[Ф0.039] 0.50[0.020] (Bottom View ) Note: grid:2.54*2.54mm. FOO TPRINT DETAIL S Note: Unit:mm[inch] Pin section tolerances: 0.10mm[ 0.004inch] General tolerances: 0.25mm[ 0.010inch] Pin 1 Function +Vin 2 3 +Vout GND TUBE OUTLINE DIMENSIONS K78XX-2000L K78XX-2000 9.00 [0.354] K78XX-2000L 11.60 [0.457] 1 2 3 11.50 [0.453] 4.10[0.161] 20.60 [0.811] 23.60 [0.929] 20.20 [0.795] 26.20 [0.031] 0.50[0.020] 5.08[0.200] 0.30[0.012] 19.00[0.748] 17.50[0.689] 11.20 [0.441] 5.20 [0.205] 9.00[0.354] 2.15[0.085] Ф1.00[Ф0.039] 9.00 [0.354] 17.50 [0.689] 2.15[0.085] 0.50[0.020] 5.08[0.200] (Botto m Vi ew) Note: Unit:mm[inch] Pin section tolerances: 0.10mm[ 0.004inch] General tolerances: 0.25mm[ 0.010inch] 11.20 [0.441] 16.20 [0.638] 6.20 [0.244] Note: Unit :mm[inch] General tolerances: 0.50mm[ 0.020inch] L=530mm[20.866inch] Devices per tube quantity: 44pcs L=220mm[8.661inch] Devices per tube 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. 3. In this datasheet, all the test methods of indications are based on corporate standards. The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78XX-2000(L) A/2 -2011 Page 4 of 4