LM2936-5.0EP LM2936-5.0EP Enhanced Plastic Ultra-Low Quiescent Current 5V Regulator Literature Number: SNVS270A LM2936-5.0EP Enhanced Plastic Ultra-Low Quiescent Current 5V Regulator General Description Features The LM2936EP ultra-low quiescent current regulator features low dropout voltage and low current in the standby mode. With less than 15 μA quiescent current at a 100 μA load, the LM2936EP is ideally suited for automotive and other battery operated systems. The LM2936EP retains all of the features that are common to low dropout regulators including a low dropout PNP pass device, short circuit protection, reverse battery protection, and thermal shutdown. The LM2936EP has a 40V maximum operating voltage limit, a −40°C to +125° C operating temperature range, and ±3% output voltage tolerance over the entire output current, input voltage, and temperature range. The LM2936EP is available in a TO-92 package, a SO-8 surface mount package, and a TO-252 surface mount power package. ENHANCED PLASTIC • Extended Temperature Performance of −40°C to +125°C • Baseline Control - Single Fab & Assembly Site • Process Change Notification (PCN) • Qualification & Reliability Data • Solder (PbSn) Lead Finish is standard • Enhanced Diminishing Manufacturing Sources (DMS) Support ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Ultra low quiescent current (IQ ≤ 15 μA for IO = 100 μA) Fixed 5V, 50 mA output ±2% Initial output tolerance ±3% Output tolerance over line, load, and temperature Dropout voltage typically 200 mV @ IO = 50 mA Reverse battery protection −50V reverse transient protection Internal short circuit current limit Internal thermal shutdown protection 40V operating voltage limit 60V operating voltage limit for LM2936HVEP Shutdown Pin available with LM2936BMEP package Applications ■ Selected Military Applications ■ Selected Avionics Applications Ordering Information PART NUMBER VID PART NUMBER NS PACKAGE NUMBER (Note 3) LM2936MX-5.0EP V62/4636-01 M08A (Note 1, Note 2) TBD TBD Note 1: For the following (Enhanced Plastic) versions, check for availability: LM2936BM-5.0EP, LM2936HVBMA50EP, LM2936HVMA50EP, LM2936M-5.0EP, LM2936BMX50EP, LM2936HVBMAX5EP, LM2936HVMAX5EP, LM2936MP-5.0EP, LM2936MPX50EP, LM2936MM-5.0EP, LM2936MMX50EP, LM2936DT-5.0EP, LM2936DTX50EP, LM2936Z-5.0EP. Parts listed with an "X" are provided in Tape & Reel and parts without an "X" are in Rails. Note 2: FOR ADDITIONAL ORDERING AND PRODUCT INFORMATION, PLEASE VISIT THE ENHANCED PLASTIC WEB SITE AT: www.national.com/ mil Note 3: Refer to package details under Physical Dimensions © 2011 National Semiconductor Corporation 200907 200907 Version 2 Revision 3 www.national.com Print Date/Time: 2011/09/23 13:07:15 LM2936-5.0EP Enhanced Plastic Ultra-Low Quiescent Current 5V Regulator OBSOLETE September 23, 2011 LM2936-5.0EP Enhanced Plastic Typical Application 20090701 * Required if regulator is located more than 2″ from power supply filter capacitor. ** Required for stability. Must be rated for 10 μF minimum over intended operating temperature range. Effective series resistance (ESR) is critical, see curve. Locate capacitor as close as possible to the regulator output and ground pins. Capacitance may be increased without bound. Connection Diagrams TO-252 SOT-223 20090726 20090725 Top View See NS Package Number TD03B Top View See NS Package Number MA04A 8-Pin SO (M) 8-Pin SO (M) 20090706 20090727 Top View See NS Package Number M08A Top View See NS Package Number M08A TO-92 8-Pin Mini SOIC (MM) 20090702 Bottom View See NS Package Number Z03A 20090728 Top View See NS Package Number MUA08A www.national.com 2 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Input Voltage (Survival) ESD Susceptibility (Note 5) Power Dissipation (Note 6) Junction Temperature (TJmax) Storage Temperature Range Lead Temperature (Soldering, 10 sec.) +60V, −50V 2000V Internally limited 150°C −65°C to +150°C TO-92 (Z03A) θJA 195°C/W MSO-8 (MUA08A) θJA 200°C/W SO-8 (M08A) θJA 140°C/W SO-8 (M08A) θJC 45°C/W TO-252 (TD03B) θJA 136°C/W TO-252 (TD03B) θJC 260°C Operating Ratings Operating Temperature Range Maximum Operating Input Voltage LM2936EP +60V 0V to 40V 6°C/W SOT-223 (MA04A) θJA 149°C/W SOT-223 (MA04A) θJC 36°C/W −40°C to +125°C +40V Electrical Characteristics VIN = 14V, IO = 10 mA, TJ = 25°C, unless otherwise specified. Boldface limits apply over entire operating temperature range Min (Note 8) Typical (Note 7) Max (Note 8) Units 4.85 5.00 5.15 V 15 35 mV 4.90 5.00 5.10 4.85 5.00 5.15 V IO = 100 μA, 8V ≤ VIN ≤ 24V 9 15 μA IO = 10 mA, 8V ≤ VIN ≤ 24V 0.20 0.50 mA IO = 50 mA, 8V ≤ VIN ≤ 24V 1.5 2.5 mA 9V ≤ VIN ≤ 16V 5 10 mV 6V ≤ VIN ≤ 40V, IO = 1 mA 10 30 100 μA ≤ IO ≤ 5 mA 10 30 5 mA ≤ IO ≤ 50 mA 10 30 0.05 0.10 0.20 0.40 V 120 250 mA Parameter Conditions LM2936HVEP Only Output Voltage 5.5V ≤ VIN ≤ 48V, 100 µA ≤ IO ≤ 50 mA (Note 9) Line Regulation 6V ≤ VIN ≤ 60V, IO = 1mA All LM2936EP Output Voltage 5.5V ≤ VIN ≤ 26V, 100 µA ≤ IO ≤ 50 mA (Note 9) Quiescent Current Line Regulation Load Regulation Dropout Voltage IO = 100 μA IO = 50 mA Short Circuit Current VO = 0V Output Impedance IO = 30 mAdc and 10 mArms, 65 450 mV V mΩ f = 1000 Hz Output Noise Voltage 10 Hz–100 kHz 500 μV 20 mV/1000 Hr Long Term Stability Ripple Rejection Vripple = 1Vrms, fripple = 120 Hz −40 −60 dB Reverse Polarity RL = 500Ω, T = 1 ms −50 −80 V Transient Input Voltage Output Voltage with VIN = −15V, RL = 500Ω 0.00 −0.30 V Reverse Polarity Input Maximum Line Transient RL = 500Ω, VO ≤ 5.5V, T = 40ms 60 3 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 V www.national.com LM2936-5.0EP Enhanced Plastic Maximum Operating Input Voltage LM2936HVEP only Maximum Shutdown Pin Voltage LM2936BMEP only Absolute Maximum Ratings (Note 4) LM2936-5.0EP Enhanced Plastic Parameter Output Bypass Capacitance (COUT) ESR Min (Note 8) Conditions COUT = 10µF Typical (Note 7) 0.3 0.1mA ≤ IOUT ≤ 50mA Max (Note 8) Units 8 Ω 0.010 V Shutdown Input − LM2936BMEP Only Output Voltage, VOUT Output Off, VSD=2.4V, RLOAD = 500Ω Shutdown High Threshold Voltage, VIH Output Off, RLOAD = 500Ω Shutdown Low Threshold Voltage, VIL Output On, RLOAD = 500Ω 1.1 Shutdown High Current, IIH Output Off, VSD = 2.4V, RLOAD = 500Ω 12 μA Quiescent Current Output Off, VSD = 2.4V, RLOAD = 500Ω Includes IIHCurrent 30 μA 0 2.00 1.1 V 0.60 V Note 4: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating the device beyond its specified operating ratings. Note 5: Human body model, 100 pF discharge through a 1.5 kΩ resistor. Note 6: The maximum power dissipation is a function of TJmax, θJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD = (TJmax − TA)/θJA. If this dissipation is exceeded, the die temperature will rise above 150°C and the LM2936EP will go into thermal shutdown. Note 7: Typicals are at 25°C (unless otherwise specified) and represent the most likely parametric norm. Note 8: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. Note 9: To ensure constant junction temperature, pulse testing is used. www.national.com 4 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 LM2936-5.0EP Enhanced Plastic Typical Performance Characteristics Maximum Power Dissipation (TO-92) Dropout Voltage 20090708 20090707 Dropout Voltage Quiescent Current 20090709 20090710 Quiescent Current Quiescent Current 20090712 20090711 5 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 www.national.com LM2936-5.0EP Enhanced Plastic Quiescent Current Quiescent Current 20090714 20090713 Output Capacitor ESR Peak Output Current 20090715 20090716 Peak Output Current Current Limit 20090717 www.national.com 20090718 6 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 LM2936-5.0EP Enhanced Plastic Line Transient Response Output at Voltage Extremes 20090719 20090720 Ripple Rejection Load Transient Response 20090721 20090722 Low Voltage Behavior Output Impedance 20090723 20090724 7 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 www.national.com LM2936-5.0EP Enhanced Plastic On the SO-8 package the four ground pins are thermally connected to the backside of the die. Adding approximately 0.04 square inches of 2 oz. copper pad area to these four pins will improve the θJA rating to approximately 110°C/W. If this extra pad are is placed directly beneath the package there should not be any impact on board density. On the TO-252 package the ground tab is thermally connected to the backside of the die. Adding 1 square inch of 2 oz. copper pad area directly under the ground tab will improve the θJA rating to approximately 50°C/W. While the LM2936EP has an internally set thermal shutdown point of typically 150°C, this is intended as a safety feature only. Continuous operation near the thermal shutdown temperature should be avoided as it may have a negative affect on the life of the device. While the LM2936EP maintains regulation to 60V, it will not withstand a short circuit above 40V because of safe operating area limitations in the internal PNP pass device. Above 60V the LM2936EP will break down with catastrophic effects on the regulator and possibly the load as well. Do not use this device in a design where the input operating voltage may exceed 40V, or where transients are likely to exceed 60V. Applications Information Unlike other PNP low dropout regulators, the LM2936EP remains fully operational to 40V. Owing to power dissipation characteristics of the available packages, full output current cannot be guaranteed for all combinations of ambient temperature and input voltage. As an example, consider an LM2936ZEP operating at 25°C ambient. Using the formula for maximum allowable power dissipation given in (Note 6) , we find that PDmax = 641 mW at 25°C. Including the small contribution of the quiescent current to total power dissipation the maximum input voltage (while still delivering 50 mA output current) is 17.3V. The LM2936ZEP will go into thermal shutdown if it attempts to deliver full output current with an input voltage of more than 17.3V. Similarly, at 40V input and 25°C ambient the LM2936ZEP can deliver 18 mA maximum. Under conditions of higher ambient temperatures, the voltage and current calculated in the previous examples will drop. For instance, at the maximum ambient of 125°C the LM2936ZEP can only dissipate 128 mW, limiting the input voltage to 7.34V for a 50 mA load, or 3.5 mA output current for a 40V input. The junction to ambient thermal resistance θJA rating has two distinct components: the junction to case thermal resistance rating θJC; and the case to ambient thermal resistance rating θCA. The relationship is defined as: θJA = θJC + θCA. For the SO-8 and TO-252 surface mount packages the θJA rating can be improved by using the copper mounting pads on the printed circuit board as a thermal conductive path to extract heat from the package. www.national.com Shutdown Pin The LM2936BMEP has a pin for shutting down the regulator output. Applying a Logic Level High (>2.0V) to the Shutdown pin will cause the output to turn off. Leaving the Shutdown pin open, connecting it to Ground, or applying a Logic Level Low (<0.6V) will allow the regulator output to turn on. 8 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 20090705 9 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 www.national.com LM2936-5.0EP Enhanced Plastic Equivalent Schematic Diagram LM2936-5.0EP Enhanced Plastic Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead Small Outline Molded Package (M) NS Package Number M08A TO-252 Package (DT) NS Package Number TD03B www.national.com 10 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 LM2936-5.0EP Enhanced Plastic 3-Lead TO-92 Plastic Package (Z) NS Package Number Z03A SOT-223 Package (MP) NS Package Number MA04A 11 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 www.national.com LM2936-5.0EP Enhanced Plastic 8-Lead Mini SOIC package (MM) NS Package Number MUA08A www.national.com 12 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 LM2936-5.0EP Enhanced Plastic Notes 13 200907 Version 2 Revision 3 Print Date/Time: 2011/09/23 13:07:15 www.national.com LM2936-5.0EP Enhanced Plastic Ultra-Low Quiescent Current 5V Regulator Notes For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Design Support Amplifiers www.national.com/amplifiers WEBENCH® Tools www.national.com/webench Audio www.national.com/audio App Notes www.national.com/appnotes Clock and Timing www.national.com/timing Reference Designs www.national.com/refdesigns Data Converters www.national.com/adc Samples www.national.com/samples Interface www.national.com/interface Eval Boards www.national.com/evalboards LVDS www.national.com/lvds Packaging www.national.com/packaging Power Management www.national.com/power Green Compliance www.national.com/quality/green Switching Regulators www.national.com/switchers Distributors www.national.com/contacts LDOs www.national.com/ldo Quality and Reliability www.national.com/quality LED Lighting www.national.com/led Feedback/Support www.national.com/feedback Voltage References www.national.com/vref Design Made Easy www.national.com/easy www.national.com/powerwise Applications & Markets www.national.com/solutions Mil/Aero www.national.com/milaero PowerWise® Solutions Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors SolarMagic™ www.national.com/solarmagic PLL/VCO www.national.com/wireless www.national.com/training PowerWise® Design University THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION (“NATIONAL”) PRODUCTS. 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