K78XX-1500(L) Series WIDE INPUT NON-ISOLATED & REGULATED SINGLE OUTPUT RoHS PRODUCT PROGRAM FEATURES ● Efficiency up to 95%, No heatsink required ● 1.5A 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) Nominal Range Voltage (VDC) Current (mA) Vin (min.) Vin (max.) K7801-1500(L) 12 4.75-18 1.5 1500 83 78 K78X2-1500(L) 12 4.75-18 1.8 1500 85 81 K7802-1500(L) 12 4.75-18 2.5 1500 88 85 K7803-1500(L) 12 4.75-18 3.3 1500 91 88 K7805-1500(L) 12 6.5-18 5 1500 93 91 K78X6-1500(L) 12 8-18 6.5 1500 95 93 Add suffix “L” for 90° bend pins, for example: K7805-1500L. OUTPUT SPECIFICATIONS Item Test conditions Min. 100% full load, input voltage Output voltage accuracy range APPLICATIONS Upgraded K78XX-1500(L) series switching regulators are ideal replacement for K78xx linear regulators and LDOs. The efficiency of up to 95% 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. Typ. Max. ±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 ) 20 45 mVp-p 0.5 1.8 W Short circuit input power Short circuit protection Thermal shutdown Continuous, auto-recovery Internal IC junction °C 150 Output current limit 5000 Full load, input voltage range 300 mA 340 380 KHz 5 10 mA Temperature coefficient -40°C ~ +85°C ambient ±0.02 %/°C Max capacitance load 1000 μF Quiescent current K7805-1500 % Line regulation Switching frequency MODEL SELECTION Units *Test ripple and noise by “parallel cable” method. COMMON SPECIFICATIONS Operating temp. range -40~+85 ℃(above 71°C power derating) O utp ut Curren t O utpu t Voltag e Operating case temp. +100 ℃(max) Storage temp. range -55~+125 ℃ P ro du ct Se rie s 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 Radiated emissions EN55022 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 CLASS B CLASS B 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-1500(L) A/2 -2011 Page 1 of 4 TYPICAL CHARECTERISTICS EXTERNAL CAPACITOR TABLE Temperature Derating Graph Operating Temp.( C ) Part Number C1 (Ceramic capacitor) C2 (Ceramic capacitor) K7801-1500(L) 10µF/25V 22µF/6.3V K78X2-1500(L) 10µF/25V 22µF/6.3V K7802-1500(L) 10µF/25V 22µF/6.3V K7803-1500(L) 10µF/25V 22µF/6.3V K7805-1500(L) 10µF/25V 22µF/16V K78X6-1500(L) 10µF/25V 22µF/16V (Figure 1) TYPICAL APPLICATION CIRCUIT 1 K78XX-1500(L ) 3 +Vin C1 +Vo u t C2 2 GN D 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 ut Vo 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 Vo +Vout GND 330uF 2.2uF 1uF GND 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-1500(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 m m 1 2 .7 m m + Vo u t 3 1 0μ F C2 C e ra mi c Ta n ta lu m Scope Load 1μ F 2 C1 Load Copper strip 2.54 mm D C/DC Converter 1 2. 54 mm +Vin GND Copper strip (Figure 6) 2 Start-up and Load Transient Response Test 5 0.8 mm +Vin 1 DC/DC Converter C1 Copper strip 3 2 +Vo u t Scope C2 GND Copper strip (Figure 7) CHARACTERISTICS CURVE Efficiency Ripple Efficiency VS. Vin(full load) Ripple VS. Vin(full load) Ripple(mV) 30 Efficiency(%) 100 95 K7801-1500 90 K78X2-1500 85 25 K7801-1500 K78X2-1500 K7802-1500 K7803-1500 K7805-1500 K78X6-1500 20 K7802-1500 80 K7803-1500 75 K7805-1500 70 K78X6-1500 15 10 5 65 60 4.75 5 6 6.5 7.2 8 0 9 10 12 15 18 20 Vin(V) 4.75 5 Efficiency VS.Load(Vin=12V) 6 6.5 7.2 8 9 10 12 15 18 20 Vin(V) Ripple VS. Load(Vin=12V) Efficiency(%) Ripple(mV) 100 30 95 90 K7801-1500 85 K7802-1500 80 K7803-1500 75 K7805-1500 70 25 K7801-1500 K78X2-1500 K78X6-1500 K78X2-1500 20 K7802-1500 15 K7803-1500 K7805-1500 10 K78X6-1500 65 5 60 150 300 450 600 750 900 1050 1200 1350 1500 Load(mA) 0 150 300 The copyright and authority for the interpretation of the products are reserved by MORNSUN 450 600 750 900 1050 1200 1350 1500 Load(mA) Specifications subject to change without notice. K78XX-1500(L) A/2 -2011 Page 3 of 4 OUTLINE DIMENSIONS & FOOTPRINT DETAILS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT K78XX-1500 17.50 [0.689] 4.10[0.161] Ф1.00[Ф0.039] 1 2 3 2.15[0.085] 0.50[0.020] 5.08[0.200] 9.00 [0.354] K78XX-1500 11.50 [0.453] 5.08 [0.200] K78XX-1500L 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] 9.00 [0.354] 2.15 [0.085] 0.50[0.020] Note: grid:2.54*2.54mm. (Botto m View) FOOTPRINT DETAILS Pin 1 Note: Unit:mm[inch] Pin section tolerances: 0.10mm[ 0.004inch] General tolerances: 0.25mm[ 0.010inch] Function +Vin 2 GND 3 +Vout TUBE OUTLINE DIMENSIONS K78XX-1500 9.00 [0.354] K78XX-1500L 11.60 [0.457] 1 2 3 11.50 [0.453] 4.10[0.161] (Bottom View) Note: Unit:mm[inch] Pin section tolerances: 0.10mm[ 0.004inch] General tolerances: 0.25mm[ 0.010inch] 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] K78XX-1500L 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(12V) 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-1500(L) A/2 -2011 Page 4 of 4