WRN78VXX-1000 Series NONISOLATED REGULATED SINGLE OUTPUT SIP VERY WIDE INPUT, INPUT,NONNON-ISOLATED SIP33 DC/DC CONVERTER SELECTION GUIDE Input Part Number FEATURES Efficiency up to 96%,no need for Heat sink ◆ ◆ Pin-out compatible with WRN78XX linear ◆ Low profile (L*W*H=11.6×10.2×7.5mm) ◆ Very wide input range(5V~42V) ◆ Short circuit protection,Thermal Shutdown ◆ ◆ Efficiency(%,Typ) Voltage Current (VDC) (VDC) (MA) WRN78V1.8-1000 5-42 1.8 WRN78V03-1000 7-42 3.3 WRN78V05-1000 8-42 WRN78V09-1000 Vin(min) Vin(max) 1000 80 71 1000 89 79 5 1000 93 85 12-42 9 1000 95 90 WRN78V12-1000 15-42 12 1000 96 92 WRN78V15-1000 18-42 15 1000 96 94 SPECIFICATION SPECIFICATIONS S（typical at 25 25℃ ℃,10% minimum load,unless otherwise specified） Non standard outputs available as specials Low ripple and noise MODEL SELECTION WR WRN78 N78①V②05③-1000④ ①Product Series ③Output Voltage Output Voltage Range ②Very wide input range ④Output Current ltem Test conditions Min. Typ. Max. Units Input Voltage Range All Series Vo+3 42 V Output Voltage Range All Series 1.8 15 V Output Current All Series 0 1.0 A Output Current Limit All Series 3.0 A Short Circuit Input Current(Vin=24V) All Series 65mA No Load Input Current 1 Short Circuit Protection Continuous, automatic recovery Output Voltage Accuracy(100% Load) All Series ±2 Line Regulation(100% Load,Vin max) All Series 0.2 Load Regulation(10 to 100% full load) All Series 0.4 Dynamic load stability 100%<->50% load Ripple & Noise (20Mhz BW Limited) Vin = 24V, Vout =1.8V-15V 75 With 10µF MLCC output capacitor Full load 30 Temperature Coefficient -40°C ~ +85°C ambient 100%<->10% load DESCRIPTION The WRN78Vxx-1000 Series switching regulators are ideally suited to replace 1Amp WRN78xx linear regulators and are pin compatible. The efficiency of up to 96% means that very little energy is wasted as heat and the high input Voltage is a useful feature. Max capacitance load % ±3 % % ±75 ±200 mV 100 mVp-p mVp-p %/℃ 0.015 With normal start-up time,no external components Switching Frequency 470µF 350khz Operating Temperature Range -40 Maximum Case Temperature Storage Temperature Range PRODUCT ID DESCRIPTION mA -55℃ Case Thermal Impedance 85 ℃ 100 ℃ 125 ℃ 70 ℃/W ℃ Thermal Shutdown Internal IC junction Conducted Emissions (with filter) EN55022 160 Class B Radiated Emissions (with filter) EN55022 Class B ESD EN61000-4-2 Class A Radiated Immunity EN61000-4-3 Class A Fast Transient EN61000-4-4 Class A Conducted immunity EN61000-4-6 Class A Magnetic Field Immunity EN61000-4-8 Class A Package Weight 2g Packing Quantity 42 pcs per Tube MICRODC RESERVES THE COPYRIGHT http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 3 WRN78VXX-1000 Series Derating-Graph Ambient Temperature Specifications Typical Application Circuit Certifications General Safety Standby Power Using MIL - HDBK 217F Using MIL - HDBK 217F MTBF (+25℃) (+68℃) EN 60950-1:2006+A11：2009+A1：2010 EN62301：2005 8600 x 10³ hours. 3880 x 10³ hours. Application Examples High efficiency regulated outputs - Triple Outputs C1: Optional, C2: Required (further decoupling filtering may be necessary between the two converters) - WIDE INPUT RANGE 8V to 42V - High System Efficiency, Suitable for 12V, 24V or 36V Battery Powered Devices High efficiency regulated outputs High efficiency regulated outputs -Low Voltage AC input,regulated DC output Use soft start supply http://www.microdc.cn C2: optional -Regulated and Protected DC Output Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 3 WRN78VXX-1000 Series Package Style and Pinning (mm) Recommended Footprint Note:grid 2.54*mm Tube Outline Dimensions Note: Unit:mm[inch] General tolerances:±0.50mm:[0.020inch] L=530mm[20.866inch] Packaging quantity:43 pcs Note: Unit:mm[inch] Pin section tolerances:±0.10mm[±0.004inch] General tolerances:±0.25mm[±0.010inch] L=220mm[8.661inch] Packaging quantity:17 pcs 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; Short tube outer packaging dimensions(with three inner packaging FOOTPRINT DETAILS Pin Connections http://www.microdc.cn Pin Function 1 +Vin 2 GND 3 +Vout boxes): L*W*H=600*215*325mm; xx.x ±0.5mm xx.xx ±0.25mm Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 3 of 3