K78XXT-1000 Series WIDE INPUT, NON-ISOLATED & REGULATED SMD PACKAGE SINGLE OUTPUT FEATURES Patent Protection RoHS PRODUCT PROGRAM ● Efficiency up to 92% ● No heatsink required ● 1.0AMP SMD package ● Super low ripple and noise ● Adjustable output voltage ● Remote ON/OFF control ● Short circuit protection ● Low control current ● Operating temperature: -40°C ~ +85°C Part Number Input Voltage (V) Nominal Range Input Output Voltage (V) Output Efficiency (%)(typ.) Current Current Normal Adjust Range (mA) Vin (min.) Vin(max.) (mA) K7801T-1000* 12 5.0-18 165 1.5 fixed 1000 76 73 K78X2T-1000* 12 5.0-18 190 1.8 1.5-3.6 1000 78 75 K7802T-1000* 12 5.0-18 245 2.5 1.5-3.9 1000 82 82 K7803T-1000 12 5.0-18 320 3.3 1.8-5.5 1000 84 84 K7805T-1000 12 7.0-18 460 5.0 2.5-6.5 1000 90 88 K78X6T-1000* 12 8.5-18 580 6.5 fixed 1000 92 91 Note:To adjust the output voltage must be met Vin-Vo>2V. *Designing. Input Current measured at nominal input voltage and rated output load. INPUT SPECIFICATIONS Item Test Conditions Min. Input Filter APPLICATIONS Typ. Start Current(RMS) The K78XXT-1000 series with high efficiency Item space constrained mobile applications. there Output Voltage Accuracy is no need for any heatsinks. The additional Line Regulation features include remote ON/OFF control and Load Regulation Ripple and Noise* and noise of typically only 20mV and Low control current. 0.95 1.1 A Test Conditions Min. Typ. Max. Units ±2 ±3 Input voltage range at full load ±0.2 ±0.5 ±0.4 ±1.0 20MHz bandwidth 20 35 20MHz bandwidth (refer to Figure 6) 10 15 Nominal input,10% to 100% load Short Circuit Protection Mode Hiccup Mode Short Circuit Protection Continuous, automatic recovery Thermal Shutdown 0.5 Internal IC junction Output Current Package Style Output Voltage Product Series PWM type Transient peak deviation Input voltage 100% load Transient recovery time range,10% Quiescent current Temperature Coefficient Fax:86-20-28203068 Http://www.mornsun-power.com MHz 1 Remote ON/OFF ±100 mV 100 μS 3 mA ±0.02 %/°C -40°C ~ +85°C ambient 1000 μF ON Open or 1.2<Vc<6V OFF Vc<0.6V ON: Open or 1.2<Vc≤6V OFF:GND or Vc<0.4V Shutdown Input Current Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China. Tel: 86-20-28203030 A 1.4 Max Capacitance Load ON/OFF Control Current MORNSUN Science & Technology Co.,Ltd. 1.8 ±75 to W °C 150 Output current limit Switching Frequency % mVp-p Inside Wasted MODEL SELECTION K7805T-1000 Units OUTPUT SPECIFICATIONS switching regulators are ideally supply for adjustable output voltage. Super low ripple Max. Capacitor (10μF) 100 200 120 200 μA *Test ripple and noise by “parallel cable” method. COMMON SPECIFICATIONS Item Test Conditions Min. Storage humidity Range Typ. Max. 95 Operating Temperature Range Power derating(above 71°C) -40 +85 Storage Temperature Range -55 +125 Operating Case Temperature Lead Temperature Units % o +100 1.5mm from case for 10 seconds Cooling The copyright and authority for the interpretation of the products are reserved by MORNSUN C 260 Free Air Convection Specifications subject to change without notice. K78XXT-1000 A/0-2011 Page 1 of 5 COMMON SPECIFICATIONS Item TYPICAL TEMPERATURE CURVE Test Conditions Min. Case Material Typ. Max. Units Plastic (UL94-V0) MTBF (MIL-HDBK-217F,+25°C) 1000 k hours Not supported Thermal resistance 90 Weight 2.3 Temperature Derating Graph ℃/W 120 g Output Power (%) Hop swap EMC SPECIFICATIONS CE EN55022, CLASS A(without external circuit) EN55022, CLASS B(refer to Figure 4) RE EN55022, CLASS A(refer to Figure 5) ESD IEC/EN61000-4-2 Air ±8KV / Contact ±6KV EFT IEC/EN61000-4-4 ±2KV perf. Criteria B Surge IEC/EN61000-4-5 ±2KV perf. Criteria B(refer to Figure 4) 100 80 60 Safe Operating Area 40 20 perf. Criteria B 0 -40 0 40 71 85 120 Operating Temp.(°C ) (Figure2) TYPICAL APPLICATION CIRCUIT Vin 1 K7805T-1000 10 7,9 Vo u t 5 6 RECOMMENDED REFLOW SOLDERING PROFILE R1 C1 C2 GND C4 470pF 2 50 P ea k .Te m p 2 4 0 C 10 Se c M ax 220 C R2 2 00 Te m p e ra t u re ( C ) ON/OFF GND (Figure 1) 1. C1, C2 is required for best performance 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. 90 S ec Max (>2 2 0 C) 1 50 1 00 50 0 Tim e (sec .) (Figure 3) EXTERNAL CAPACITOR TABLE Part Number C1 (Ceramic Capacitor) C2 (Ceramic Capacitor) K7803T-1000 10μF/25V 22μF/16V K7805T-1000 10μF/25V 22μF/16V ADJUSTMENT RESISTOR VALUES Part Number K7803T-1000 Vo (nominal) K7805T-1000 3.3(V) 5.0(V) Vadj(V) R1(KΩ) R2(KΩ) R1(KΩ) R2(KΩ) 1.8 15.4 - - - 2.5 87 - 9.7 - 3.0 339 - 30.5 - 3.3 - - 48.8 - 3.6 - 121 75 - 3.9 - 51.0 115 - 4.5 - 16.6 338 - 4.9 - 8.0 1835 - 5.0 - 6.5 - - 5.1 - 5.2 - 426 5.5 - 1.1 - 58.7 6.0 - - - 16.9 6.5 - - - 3.2 The R1, R2 in the above table are used to set the output voltage. If no need to adjust the output voltage, connect a ceramic capacitor to GND with 470pF typical value for increase immunity. Insure the output voltage is in the adjust range or else may cause permanent damage to the device. Fine-tune output voltage must appease Vin-Vo>2V. The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78XXT-1000 A/0-2011 Page 2 of 5 EMC RECOMMENDED CIRCUIT L1 +Vin + Vo K7805T-1000 5 1 7,9 10 6 C1 T VS RL ON/O FF C2 47 0p F GN D GND (Figure 4) Specifications：TVS：SMCJ18A,1500W；L1：68µH；C1：680µF/50V electrolytic capacitors。 +Vin L2 1 K7805T-1000 7,9 10 + Vo 5 6 C3 RL O N/O FF GND C4 470 pF G ND (Figure 5) Specifications：L2：516µH；C3：1µF/50V ceramic capacitor。 TEST CONFIGURATIONS (TA=25°C) 1 Efficiency and Output Voltage Ripple Test 25.4 mm 25 .4mm 12.7mm 7, 9 C1 6 C4 +Vout 5 Copper strip C2 1μ F 470pF 10μ F Sc op e Load DC/DC Converter 2.54mm 1 Ceramic Tantalum Vin Ceramic G ND Cop per strip (Figure 6) 2 Start-up and Load Transient Response Test 50.8 mm C1 DC/DC Converter 7,9 6 C4 +Vout 5 Copper strip C2 Scope 470pF Cerami c GND Load 1 2.54 mm Vin Copper strip (Figure 7) APPLICATION EXAMPLE C1 L 5 +Vo u t C2 2 2μ F C4 Load Vin D C /D C 1 C on ve rter 7 ,9 6 470pF GND (Figure 8) To reduce output ripple, it is recommended to add a LC filter to output port. L: Recommended param eter 10μH ~ 47μH. The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78XXT-1000 A/0-2011 Page 3 of 5 CHARACTERISTIC CURVE Efficiency Ripple Ripple VS.Vin(full load) Efficiency VS.Vin(full load) 30 92 Efficiency(%) 88 K7803T-1000 K7805T-1000 86 84 Rippple(mV) 25 90 20 K7803T-1000 K7805T-1000 15 10 5 82 0 80 5 6 7 8 9 5 10 11 12 13 14 15 16 17 18 6 7 Vin(V) 8 9 10 11 12 13 14 15 16 17 18 Vin(V) Efficiency VS.Load(Vin=Vin-nominal) Ripple VS.Load(Vin=Vin-nominal) 25 92 20 88 86 K7803T-1000 K7805T-1000 84 82 80 Ripple(mV) Efficiency(%) 90 15 K7803T-1000 K7805T-1000 10 5 78 76 0 74 0 100 200 300 400 500 600 700 800 900 1000 0 100 200 300 400 500 600 700 800 900 1000 Load(mA) Load(mA) EMC TESTING WAVE SHAPE CE(without external circuit) The copyright and authority for the interpretation of the products are reserved by MORNSUN CE(refer to Figure 4) Specifications subject to change without notice. K78XXT-1000 A/0-2011 Page 4 of 5 OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT &PACKAGING (Side View) 11.02 [0.434] RECOMMENDED FOOTPRINT MECHANICAL DIMENSIONS 7.00 [0.276] 7.25 [0.285] A 2.54 [0.100] 10 9 8.50 [0.335] A 7 6 2.54 [0.100] 7 6 1.80 [0.071] 5 1 2.54 [0.100] 1.00 [0.039] 0.25 [0.010] 12.10 [0.476] (Top View) 1 10 9 5 1.13 [0.044] 10.16 [0.400] FOOTPRINT DETAILS Pin Function 5°max 15.24 [0.600] Note: Unit:mm[inch] Pin tolerances: ±0.10mm[ ±0.004inch] General tolerances: ±0.25mm [ ±0.010inch] TUBE OUTLINE包DIMENSIONS 装 管 尺寸 1 Vin 7,9 5 GND Vout 6 10 ON/OFF Vadj TAPINGREEL DIMENSIONS Taping dimension: ∅1.50 [0.059] 1.75 [0.069] 11.50 [0.453] 2.00 [0.079] 0.50 [0.020] 15.65 [0.616] 24.00 [0.945] 14.70[0.579] 8.20 [0.323] 10.20 [0.402] 10.20[0.402] 12.40 [0.488] 16.00 [0.630] 7.65 [0.301] 29.40 [1.157] Taping reel dimension: 6.50 [0.256] ∅1.50 [0.059] ∅100.00[3.937] Note: Unit :mm[inch] General tolerances: ±0.50mm[±0.020inch] L=530mm[20.866inch] Devices per tube quantity: 33pcs L=220mm[8.661inch] Devices per tube quantity: 13pcs 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. ∅330.00 [12.992] 5.60 [0.220] ∅13.00 [0.512] ∅21.50 [0.846] Note: Unit :mm[inch] General tolerances: ±0.50mm[±0.020inch] Devices per reel quantity:500pcs Inner packaging dimensions: L*W*H=365*350*105mm; Devices per tube quantity: 2000pcs Outer packaging dimensions: L*W*H=390*360*245mm. Devices per tube quantity: 4000pcs Note: 1. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. 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. K78XXT-1000 A/0-2011 Page 5 of 5