Page No. : 1/12 RS78XX 1.0A Low Dropout Positive Voltage Regulator General Description The RS78XX series can provide local on‐card regulation, eliminating the distribution problems associated with single point regulation. Each employs internal current limiting, thermal shut‐down and safe operating area protection, making it essen‐ tially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. Features Applications ● Output Current In Excess of 1A ● SCSI‐2 Active Termination ● Output Voltages of 5V, 6V, 8V, 9V, 12V ● High Efficiency Linear Regulators ● Internal Short‐Circuit Current Limiting & Thermal ● 5V to 3.3V Voltage Converter Overload Protection ● Battery Charger ● Guaranteed In Extended Temperature Range ● Battery Management Circuits For Notebook And Palmtop PCs ● Core Voltage Supply: FPGA, PLD, DSP, CPU Schematic Diagram & Equivalent Circuit Input Series Pass Element 1 Current Generator Starting Circuit Reference Voltage Output VIN 3 SOA Protection Error Amplifier Thermal Protection VOUT GND 2 This integrated circuit can be damaged by ESD. Orister Corporation recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. DS‐RS78XX‐08 September, 2009 www.Orister.com Page No. : 2/12 Pin Assignments TO‐251 TO‐252 TO‐220‐3 PACKAGE TO‐251 PACKAGE TO‐252 PACKAGE TO‐220‐3 PIN 1 2, 4 3 SYMBOL VIN GND VOUT DESCRIPTION Regulator Input Pin Ground Pin Regulator Output Pin PIN 1 2, 4 3 SYMBOL VIN GND VOUT DESCRIPTION Regulator Input Pin Ground Pin Regulator Output Pin PIN 1 2, 4 3 SYMBOL VIN GND VOUT DESCRIPTION Regulator Input Pin Ground Pin Regulator Output Pin Ordering Information Part Number RS7805AJ RS7805AE RS7805AI RS7806AJ RS7806AE RS7806AI RS7808AJ RS7808AE RS7808AI RS7809AJ RS7809AE RS7809AI RS7812AJ RS7812AE RS7812AI DS‐RS78XX‐08 September, 2009 VOUT 5V±0.15V 5V±0.15V 5V±0.15V 6V±0.18V 6V±0.18V 6V±0.18V 8V±0.24V 8V±0.24V 8V±0.24V 9V±0.27V 9V±0.27V 9V±0.27V 12V±0.36V 12V±0.36V 12V±0.36V Package TO‐252 TO‐220AB TO‐251 TO‐252 TO‐220AB TO‐251 TO‐252 TO‐220AB TO‐251 TO‐252 TO‐220AB TO‐251 TO‐252 TO‐220AB TO‐251 www.Orister.com Page No. : 3/12 Absolute Maximum Ratings Parameter Input Voltage Power Dissipation Operating Temperature Storage Temperature Junction Temperature Note: (1)TA=25oC, TO‐252 / TO‐251: 1W, TO‐220AB: 2.7W (2)TC=25oC, All package: 10W Symbol VIN PD TOPR TSTG TJ Maximum 40 Internally limited (Note) 0 to 125 ‐55 to 150 150 TO‐252 / TO‐251 12.5 125 TO‐220AB 12.5 47 Unit V W o C o C o C Thermal Data Characteristic Thermal Resistance Junction‐Case Thermal Resistance Junction‐Ambient Symbol Rth(j‐c) Rth(j‐a) Unit C/W o C/W o RS7805A Series Electrical Characteristics VIN=10V, IOUT=500mA, CIN=0.33uF, COUT=0.1uF, 0°C≤TJ≤125°C (unless otherwise specified) Symbol Parameter RS7805AJ/E/I Conditions Min Typ Max 4.85 5 5.15 4.85 5 5.15 TJ=25°C, 7V≤VIN≤25V ‐ 3 50 TJ=25°C, 8V≤VIN≤12V ‐ 1 25 TJ=25°C, 5mA≤IOUT≤1A ‐ 15 100 TJ=25°C, 250mA≤IOUT≤750mA ‐ 5 50 ‐ 3.9 8 TJ=25°C, IOUT=500mA VO Output Voltage 5mA≤IOUT≤1A 7V≤VIN≤25V, POUT≤15W ΔVO Line Regulation ΔVO Load Regulation IB Units V mV mV Quiescent Current IOUT=5mA, TJ=25°C Quiescent Current IOUT=500mA, 7V≤VIN≤25V, TJ=25 C ‐ ‐ 1.3 Change 5mA≤IOUT≤1A, VIN=10V, TJ=25 C ‐ ‐ 0.5 Output Noise Voltage B=10Hz~100KHz, IOUT=50mA, TJ=25°C ‐ 50 ‐ uV/VO RR Ripple Rejection 10V≤VIN≤18V, f=120Hz, IOUT=50mA, TJ=25 C 57 73 ‐ dB VD Dropout Voltage TJ=25°C, IOUT=1A ‐ 2 2.5 V RO Output Resistance f=1KHz ‐ 17 ‐ mΩ ISC Short Circuit Current TJ=25°C ‐ 2.3 2.8 A Output Voltage Drift 0 C≤TJ≤125 C ‐ ‐ 0.6 mV/°C ΔIB eN ΔVO/ΔT o o o o o mA mA DS‐RS78XX‐08 September, 2009 www.Orister.com Page No. : 4/12 RS7806A Series Electrical Characteristics VIN=11V, IOUT=500mA, CIN=0.33uF, COUT=0.1uF, 0°C≤TJ≤125°C (unless otherwise specified) Symbol Parameter RS7806AJ/E/I Conditions Min Typ Max 5.82 6 6.18 5.82 6 6.18 TJ=25°C, 8V≤VIN≤25V ‐ 3 60 TJ=25°C, 9V≤VIN≤13V ‐ 1 25 TJ=25°C, 5mA≤IOUT≤1A ‐ 15 100 TJ=25°C, 250mA≤IOUT≤750mA ‐ 5 50 ‐ 3.9 8 TJ=25°C, IOUT=500mA VO Output Voltage 5mA≤IOUT≤1A 8V≤VIN≤25V, POUT≤15W ΔVO Line Regulation ΔVO Load Regulation IB Units V mV mV Quiescent Current IOUT=5mA, TJ=25°C Quiescent Current IOUT=500mA, 9V≤VIN≤25V, TJ=25 C ‐ ‐ 1.3 Change 5mA≤IOUT≤1A, VIN=11V, TJ=25 C ‐ ‐ 0.5 Output Noise Voltage B=10Hz~100KHz, IOUT=50mA, TJ=25°C ‐ ‐ 55 uV/VO RR Ripple Rejection 11V≤VIN≤19V, f=120Hz, IOUT=50mA, TJ=25 C 56 72 ‐ dB VD Dropout Voltage TJ=25°C, IOUT=1A ‐ 2 2.5 V RO Output Resistance f=1KHz ‐ 17 ‐ mΩ ISC Short Circuit Current VIN=45V, TJ=25°C ‐ 2.3 2.8 A Output Voltage Drift 0 C≤TJ≤125 C ‐ ‐ 0.7 mV/°C ΔIB eN ΔVO/ΔT o o o o o mA mA RS7808A Series Electrical Characteristics VIN=14V, IOUT=500mA, CIN=0.33uF, COUT=0.1uF, 0°C≤TJ≤125°C (unless otherwise specified) Symbol Parameter RS7808AJ/E/I Conditions Min Typ Max 7.76 8 8.24 7.76 8 8.24 TJ=25°C, 10.5V≤VIN≤25V ‐ 3 80 TJ=25°C, 11V≤VIN≤17V ‐ 1 40 TJ=25°C, 5mA≤IOUT≤1A ‐ 15 100 TJ=25°C, 250mA≤IOUT≤750mA ‐ 5 50 ‐ 3.9 8 TJ=25°C, IOUT=500mA VO Output Voltage 5mA≤IOUT≤1A 10V≤VIN≤25V, POUT≤15W ΔVO Line Regulation ΔVO Load Regulation IB Quiescent Current IOUT=5mA, Tj=25°C Units V mV mV mA Quiescent Current IOUT=500mA, 10.5V≤VIN≤25V, TJ=25 C ‐ ‐ 1.3 Change 5mA≤IOUT≤1A, VIN=14V, TJ=25 C ‐ ‐ 0.5 Output Noise Voltage B=10Hz~100KHz, IOUT=50mA, TJ=25°C ‐ ‐ 70 uV/VO RR Ripple Rejection 14V≤VIN≤21.5V, f=120Hz, IOUT=50mA, TJ=25 C 53 69 ‐ dB VD Dropout Voltage TJ=25°C, IOUT=1A ‐ 2 2.5 V RO Output Resistance f=1KHz ‐ 17 ‐ mΩ ISC Short Circuit Current TJ=25°C ‐ 2.3 2.8 A Output Voltage Drift 0 C≤TJ≤125 C ‐ ‐ 1 mV/°C ΔIB eN ΔVO/ΔT o o o o o mA DS‐RS78XX‐08 September, 2009 www.Orister.com Page No. : 5/12 RS7809A Series Electrical Characteristics VIN=15V, IOUT=500mA, CIN=0.33uF, COUT=0.1uF, 0°C≤TJ≤125°C (unless otherwise specified) Symbol Parameter RS7809AJ/E/I Conditions Min Typ Max 8.73 9 9.27 8.73 9 9.27 TJ=25°C, 11.5V≤VIN≤25V ‐ 3 90 TJ=25°C, 13V≤VIN≤19V ‐ 1 45 TJ=25°C, 5mA≤IOUT≤1A ‐ 15 100 TJ=25°C, 250mA≤IOUT≤750mA ‐ 5 50 ‐ 3.9 8 TJ=25°C, IOUT=500mA VO Output Voltage 5mA≤IOUT≤1A 11V≤VIN≤25V, POUT≤15W ΔVO Line Regulation ΔVO Load Regulation IB Units V mV mV Quiescent Current IOUT=5mA, Tj=25°C Quiescent Current IOUT=500mA, 11.5V≤VIN≤26V, TJ=25 C ‐ ‐ 1.3 Change 5mA≤IOUT≤1A, VIN=15V, TJ=25 C ‐ ‐ 0.5 Output Noise Voltage B=10Hz~100KHz, IOUT=50mA, TJ=25°C ‐ ‐ 75 uV/VO RR Ripple Rejection 15V≤VIN≤22.5V, f=120Hz, IOUT=50mA, TJ=25 C 51 67 ‐ dB VD Dropout Voltage TJ=25°C, IOUT=1A ‐ 2 2.5 V RO Output Resistance f=1KHz ‐ 17 ‐ mΩ ISC Short Circuit Current TJ=25°C ‐ 2.3 2.8 A Output Voltage Drift 0 C≤TJ≤125 C ‐ ‐ 1.1 mV/°C ΔIB eN ΔVO/ΔT o o o o o mA mA RS7812A Series Electrical Characteristics VIN=19V, IOUT=500mA, CIN=0.33uF, COUT=0.1uF, 0°C≤TJ≤125°C (unless otherwise specified) Symbol Parameter RS7812AJ/E/I Conditions Min Typ Max 11.64 12 12.36 11.64 12 12.36 TJ=25°C, 14.5V≤VIN≤30V ‐ 10 120 TJ=25°C, 16V≤VIN≤22V ‐ 3 60 TJ=25°C, 5mA≤IOUT≤1A ‐ 12 100 TJ=25°C, 250mA≤IOUT≤750mA ‐ 4 60 ‐ 3.9 8 TJ=25°C, IOUT=500mA VO Output Voltage 5mA≤IOUT≤1A 14V≤VIN≤30V, POUT≤15W ΔVO Line Regulation ΔVO Load Regulation IB Quiescent Current IOUT=5mA, Tj=25°C Units V mV mV mA Quiescent Current IOUT=500mA, 14.5V≤VIN≤30V, TJ=25 C ‐ ‐ 1.3 Change 5mA≤IOUT≤1A, VIN=19V, TJ=25 C ‐ ‐ 0.5 Output Noise Voltage B=10Hz~100KHz, IOUT=50mA, TJ=25°C ‐ ‐ 90 uV/VO RR Ripple Rejection 19V≤VIN≤25V, f=120Hz, IOUT=50mA, TJ=25 C 50 66 ‐ dB VD Dropout Voltage TJ=25°C, IOUT=1A ‐ 2 2.5 V RO Output Resistance f=1KHz ‐ 18 ‐ mΩ ISC Short Circuit Current TJ=25°C ‐ 2.3 2.8 A Output Voltage Drift 0 C≤TJ≤125 C ‐ ‐ 1.6 mV/°C ΔIB eN ΔVO/ΔT o o o o o mA DS‐RS78XX‐08 September, 2009 www.Orister.com Page No. : 6/12 Test Circuits VIN 1 3 RS78XX Series 2 CIN VOUT VIN CIN 2 VOUT 3 RS78XX Series 0.33uF COUT 0.33uF 1 VIN 1 - + RL RS7805 Series 270pF VOUT 3 2 + DC 9V - 0.1uF RL VOUT 100 0V DC Parameter Load Regulation Ripple Rejection Application Circuits Constant Current Regulator V IN 1 Circuit for Increasing Output Voltage V OUT 3 RS78XX V IN V 1 3 RS78XX Series OUT Series 2 R1 0.33uF I 2 R B 1 0.33uF I R1 0.1uF 10uF R 0.1uF 10uF 2 VOUT=VOUT(IC)+VZ I1=VOUT(IC)/R1 VOUT=VOUT(IC)(1+R2/R1)+R2*IB Adjustable Output Regulator High Output Current with Short‐circuit Protection V IN V IN V 1 RS78XX 3 Q1 OUT R1 Series R sc Q2 1 0.1uF 10uF I V OUT 3 RS78XX Series 2 B 0.33uF 2 + R R 1 0.33uF 0.1uF 10uF 2 R1≤VBE1/IB(max) VOUT=VOUT(IC)(1+R2/R1) DS‐RS78XX‐08 September, 2009 RSC=VBE2/ISC, ISC: Short‐Circuit Current www.Orister.com Page No. : 7/12 Characteristics Curve Ripple Rejection Current Cut-off Grid Voltage 70 Vout 50 Output Voltage (V) Ripple Rejection (dB).. 60 40 30 20 Vin=Vout(ic)+5V o Tj=25 C Vin=(4.5+Vout(ic))VDC+3.5Vrms Iout=50mA Tj=25oC 10 0 10 100 1000 10000 100000 0 1000000 0.5 1 Frequency (Hz) Worst Case Power Dissipation 2 2.5 3 Output Voltage as a Function of Junction Temperature 2500 Vin=Vout(ic)+5V Iout=5mA Output Voltage (V) 2000 Output Current (mA) 1.5 Output Current (A) 1500 1000 With 72oC/W Heat Sink Heat Sink Size: 50*50*2 mm 500 Free Air 0 0 5 10 15 20 25 30 35 0 50 Load Transient Response o 150 200 Voltage Range 2.5 1.0 2 0.5 0 Vout Voutput (V) 1.5 Load Current (A) 3 Output Voltage Deviion (V).. 100 Junction Temperature ( C) Differential (V) Vinput-Voutput Voltage(V) 1 0.5 0 Vin=Vout(ic)+5V Tj=25oC -0.5 Iout=50mA -1 0 5 10 15 20 25 30 Time (us) 35 40 45 50 0 5 10 15 20 25 30 35 Vinput-Voutput (V) DS‐RS78XX‐08 September, 2009 www.Orister.com Page No. : 8/12 TO‐252 Dimension NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. The center lead is in electrical contact with the tab. D. Body dimensions do not include mold flash or protrusion. Mold flash and protrusion shall not exceed 0.15 per side. E. Thermal pad contour optional within these dimensions. F. Falls within JEDEC TO‐252 variation AA. DS‐RS78XX‐08 September, 2009 www.Orister.com Page No. : 9/12 TO‐251 Dimension NOTES: G. All linear dimensions are in inches (millimeters). H. This drawing is subject to change without notice. I. The center lead is in electrical contact with the tab. J. Body dimensions do not include mold flash or protrusion. Mold flash and protrusion shall not exceed 0.15 per side. K. Thermal pad contour optional within these dimensions. L. Falls within JEDEC TO‐251 variation AA. DS‐RS78XX‐08 September, 2009 www.Orister.com Page No. : 10/12 TO‐220‐3 Dimension NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. Lead dimensions are not controlled within this area. D. All lead dimensions apply before solder dip. E. The center lead is in electrical contact with the tab. F. The chamfer is optional. G. Thermal pad contour optional within these dimensions. H. Falls within JEDEC TO‐220 variation AB. Except minimum lead thickness, minimum exposed pad length, and maximum body length. DS‐RS78XX‐08 September, 2009 www.Orister.com Page No. : 11/12 Soldering Methods for Orister’s Products 1. Storage environment: Temperature=10oC~35oC Humidity=65%±15% 2. Reflow soldering of surface‐mount devices Figure 1: Temperature profile tP Critical Zone TL to TP TP Ramp-up TL tL Temperature Tsmax Tsmin tS Preheat 25 Ramp-down t 25oC to Peak Time Profile Feature Average ramp‐up rate (TL to TP) Sn‐Pb Eutectic Assembly o <3 C/sec Pb‐Free Assembly <3oC/sec ‐ Temperature Min (Tsmin) 100oC 150oC ‐ Temperature Max (Tsmax) 150oC 200oC 60~120 sec 60~180 sec Preheat ‐ Time (min to max) (ts) Tsmax to TL ‐ Ramp‐up Rate o <3 C/sec <3 C/sec Time maintained above: ‐ Temperature (TL) ‐ Time (tL) o 217oC 183 C 60~150 sec Peak Temperature (TP) Time within 5oC of actual Peak Temperature (tP) Ramp‐down Rate Time 25oC to Peak Temperature o o o 60~150 sec 240 C +0/‐5 C 260oC +0/‐5oC 10~30 sec 20~40 sec <6oC/sec <6oC/sec <6 minutes <8 minutes Peak temperature Dipping time 3. Flow (wave) soldering (solder dipping) Products Pb devices. Pb‐Free devices. o o 245 C ±5 C o o 260 C +0/‐5 C 5sec ±1sec 5sec ±1sec DS‐RS78XX‐08 September, 2009 www.Orister.com Page No. : 12/12 Important Notice: © Orister Corporation Orister cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an Orister product. No circuit patent licenses, copyrights, mask work rights, or other intellectual property rights are implied. Orister reserves the right to make changes to their products or specifications or to discontinue any product or service without notice. Except as provided in Orister’s terms and conditions of sale, Orister assumes no liability whatsoever, and Orister disclaims any express or implied warranty relating to the sale and/or use of Orister products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. Testing and other quality control techniques are utilized to the extent Orister deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed. Orister and the Orister logo are trademarks of Orister Corporation. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. DS‐RS78XX‐08 September, 2009 www.Orister.com