LP3996 LP3996 Dual Linear Regulator with 300mA and 150mA Outputs and Power-On-Reset Literature Number: SNVS360B LP3996 Dual Linear Regulator with 300mA and 150mA Outputs and Power-On-Reset General Description Key Specifications The LP3996 is a dual low dropout regulator with power-onreset circuit. The first regulator can source 150mA, while the second is capable of sourcing 300mA and has a power-onreset function included. The LP3996 provides 1.5% accuracy requiring an ultra low quiescent current of 35A. Separate enable pins allow each output of the LP3996 to be shut down, drawing virtually zero current. The LP3996 is designed to be stable with small footprint ceramic capacitors down to 1F. An external capacitor may be used to set the POR delay time as required. The LP3996 is available in fixed output voltages and comes in a 10 pin, 3mm x 3mm, LLP package. . Features 2 LDO Outputs with Independent Enable 1.5% Accuracy at Room Temperature, 3% over Input Voltage Range Low Dropout Voltage Ultra-Low IQ (enabled) Virtually Zero IQ (disabled) 2.0V to 6.0V 210mV at 300mA 35A <10nA Package All available in Lead Free option. 10 pin LLP 3mm x 3mm For other package options contact your NSC sales office. Applications Cellular Handsets PDA's Wireless Network Adaptors Temperature Power-On-Reset Function with Adjustable Delay Thermal Shutdown Protection Stable with Ceramic Capacitors Typical Application Circuit 20145801 (c) 2008 National Semiconductor Corporation 201458 www.national.com LP3996 Dual Linear Regulator with 300mA and 150mA Outputs and Power-On-Reset January 11, 2008 LP3996 Functional Block Diagram 20145806 Pin Descriptions LLP-10 Package www.national.com Pin No Symbol Name and Function 1 VIN Voltage Supply Input. Connect a 1F capacitor between this pin and GND. 2 EN1 Enable Input to Regulator 1. Active high input. High = On. Low = OFF. 3 EN2 Enable Input to Regulator 2. Active high input. High = On. Low = OFF. 4 CBYP Internal Voltage Reference Bypass. Connect a 10nF capacitor from this pin to GND to reduce output noise and improve line transient and PSRR. This pin may be left open. 5 SET Set Delay Input. Connect a capacitor between this pin and GND to set the POR delay time. If left open, there will be no delay. 6 GND Common Ground pin. Connect externally to exposed pad. 7 N/C No Connection. Do not connect to any other pin. 8 POR Power-On Reset Output. Open drain output. Active low indicates under-voltage output on Regulator 2. A pull-up resistor is required for correct operation. 9 VOUT2 Output of Regulator 2. 300mA maximum current output. Connect a 1F capacitor between this pin and GND. 10 VOUT1 Output of Regulator 1. 150mA maximum current output. Connect a 1F capacitor between this pin and GND. Pad GND Common Ground. Connect to Pin 6. 2 LP3996 Connection Diagram LLP-10 Package 20145803 See NS package number SDA10A 3 www.national.com LP3996 Ordering Information (LLP-10) For other voltage options, please contact your local NSC sales office * These parts avaliable soon. Output Voltage (V) Vout1 Vout2 0.8 3.3 Order Number Spec Package Marking LP3996SD-0833 NOPB L167B LP3996SDX-0833 NOPB 1000 Units, Tape-and-Reel LP3996SDX-0833 1.5 1.8 1.8 2.5 3.3 4500 Units, Tape-and-Reel LP3996SD-1018 NOPB LP3996SDX-1018 NOPB L227B 4500 Units, Tape-and-Reel 1000 Units, Tape-and-Reel LP3996SDX-1018 4500 Units, Tape-and-Reel LP3996SD-1525 NOPB LP3996SDX-1525 NOPB L168B 4500 Units, Tape-and-Reel 1000 Units, Tape-and-Reel LP3996SDX-1525 4500 Units, Tape-and-Reel LP3996SD-1833 NOPB LP3996SDX-1833 NOPB L228B 1000 Units, Tape-and-Reel 4500 Units, Tape-and-Reel LP3996SD-2533 NOPB LP3996SDX-2533 NOPB L229B 1000 Units, Tape-and-Reel 4500 Units, Tape-and-Reel LP3996SD-2828 NOPB LP3996SDX-2828 NOPB L171B 1000 Units, Tape-and-Reel LP3996SDX-2828 3.0 3.0 3.3 4500 Units, Tape-and-Reel LP3996SD-3030 NOPB LP3996SDX-3030 NOPB L172B 4500 Units, Tape-and-Reel 1000 Units, Tape-and-Reel LP3996SDX-3030 4500 Units, Tape-and-Reel LP3996SD-3033 NOPB LP3996SDX-3033 NOPB L170B 1000 Units, Tape-and-Reel 4500 Units, Tape-and-Reel LP3996SD-3308 NOPB LP3996SDX-3308 NOPB L188B 1000 Units, Tape-and-Reel LP3996SDX-3308 www.national.com 3.3 1000 Units, Tape-and-Reel 4500 Units, Tape-and-Reel LP3996SD-3308 3.3 1000 Units, Tape-and-Reel 4500 Units, Tape-and-Reel LP3996SDX-3033 0.8 1000 Units, Tape-and-Reel LP3996SD-3030 LP3996SD-3033 3.3 1000 Units, Tape-and-Reel 4500 Units, Tape-and-Reel LP3996SD-2828 3.0 1000 Units, Tape-and-Reel 4500 Units, Tape-and-Reel LP3996SD-2533 2.8 1000 Units, Tape-and-Reel 4500 Units, Tape-and-Reel LP3996SDX-2533 2.8 1000 Units, Tape-and-Reel LP3996SD-1525 LP3996SDX-1833 3.3 1000 Units, Tape-and-Reel LP3996SD-1018 LP3996SD-1833 2.5 1000 Units, Tape-and-Reel 4500 Units, Tape-and-Reel LP3996SD-0833 1.0 Supplied As 4500 Units, Tape-and-Reel LP3996SD-3333 NOPB LP3996SDX-3333 NOPB L173B 1000 Units, Tape-and-Reel 4500 Units, Tape-and-Reel LP3996SD-3333 1000 Units, Tape-and-Reel LP3996SDX-3333 4500 Units, Tape-and-Reel 4 Operating Ratings (Notes 1, 2) Input Voltage EN1, EN2, POR Voltage If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Input Voltage to GND VOUT1, VOUT2 EN1 and EN2 Voltage to GND POR to GND Junction Temperature (TJ-MAX) Lead/Pad Temp. (Note 3) Storage Temperature Continuous Power Dissipation Internally Limited(Note 4) ESD Rating(Note 5) Human Body Model Machine Model (Notes 1, 2) 2.0V to 6.0V 0 to (VIN + 0.3V) to 6.0V (max) -40C to 125C -40C to 85C Junction Temperature Ambient Temperature TARange (Note 6) -0.3V to 6.5V -0.3V to (VIN + 0.3V) with 6.5V (max) -0.3V to 6.5V 150C 235C -65C to 150C Thermal Properties (Note 1) Junction To Ambient Thermal Resistance(Note 7) JALLP-10 Package 55C/W 2.0kV 200V Electrical Characteristics (Notes 2, 8) Unless otherwise noted, VEN = 950mV, VIN = VOUT + 1.0V, or 2.0V, whichever is higher, where VOUT is the higher of VOUT1 and VOUT2. CIN = 1 F, IOUT = 1 mA, COUT1 = COUT2 = 1.0F. Typical values and limits appearing in normal type apply for TA = 25C. Limits appearing in boldface type apply over the full junction temperature range for operation, -40 to +125C. Symbol Parameter Conditions VIN Input Voltage (Note 9) VOUT Output Voltage Tolerance IOUT = 1mA VDO IQ ISC IOUT Typ Limit Min 6 1.5V < VOUT 3.3V +2.5 +3.75 VOUT 1.5V -2.75 -4 +2.75 +4 VIN = (VOUT(NOM) + 1.0V) to 6.0V 0.03 0.3 Load Regulation Error IOUT = 1mA to 150mA (LDO 1) 85 155 IOUT = 1mA to 300mA (LDO 2) 26 85 IOUT = 1mA to 150mA (LDO 1) 110 220 IOUT = 1mA to 300mA (LDO 2) 210 550 LDO 1 ON, LDO 2 ON IOUT1= IOUT2 = 0mA 35 100 LDO 1 ON, LDO 2 OFF IOUT1 = 150mA 45 110 LDO 1 OFF, LDO 2 ON IOUT2 = 300mA 45 110 LDO 1 ON, LDO 2 ON IOUT1 = 150mA, IOUT2 = 300mA 70 170 VEN1 = VEN2 = 0.4V 0.5 10 LDO 1 420 750 LDO 2 550 840 Quiescent Current Short Circuit Current Limit Maximum Output Current % %/V V/mA mV A LDO 1 150 LDO 2 300 5 V 2 -2.5 -3.75 Line Regulation Error Dropout Voltage (Note 10) Units Max nA mA mA www.national.com LP3996 Absolute Maximum Ratings LP3996 Symbol PSRR en TSHUTDOWN Parameter Power Supply Rejection Ratio (Note 11) Output noise Voltage (Note 11) Thermal Shutdown Conditions Typ f = 1kHz, IOUT = LDO1 1mA to 150mA LDO2 CBYP = 10nF 58 f = 20kHz, IOUT = LDO1 1mA to 150mA LDO2 CBYP = 10nF 45 BW = 10Hz to 100kHz CBYP = 10nF VOUT = 0.8V 36 VOUT = 3.3V 75 Limit Min Max Units 70 dB 60 VRMS Temperature 160 Hysteresis 20 VEN = 0.0V 0.005 0.1 2 5 C Enable Control Characteristics IEN Input Current at VEN1 or VEN2 VEN = 6V VIL Low Input Threshold at VEN1 or VEN2 VIH High Input Threshold at VEN1 or VEN2 0.4 A V V 0.95 POR Output Characteristics VTH Low Threshold % 0f VOUT2 (NOM) Flag ON High Threshold % 0f VOUT2 (NOM) Flag OFF IPOR Leakage Current Flag OFF, VPOR = 6.5V 30 nA VOL Flag Output Low Voltage ISINK = 250A 20 mV To 95% Level CBYP = 10nF 300 s 88 96 % Timing Characteristics TON Turn On Time (Note 11) Transient Response Line Transient Response |VOUT| Trise = Tfall = 10s (Note 11) VIN = 1VCBYP = 10nF Load Transient Response |VOUT| Trise = Tfall = 1s LDO 1 IOUT = 1mA to 150mA (Note 11) LDO 2 IOUT = 1mA to 300mA 20 175 mV (pk - pk) 150 SET Input Characteristics ISET SET Pin Current Source VSET = 0V 1.3 A VTH(SET) SET Pin Threshold Voltage POR = High 1.25 V www.national.com 6 Note 2: All Voltages are with respect to the potential at the GND pin. Note 3: For detailed soldering specifications and information, please refer to National Semiconductor Application Note AN-1187, Leadless Leadframe Package. Note 4: Internal thermal shutdown circuitry protects the device from permanent damage. Note 5: The human body model is 100pF discharged through a 1.5k resistor into each pin. The machine model is a 200pF capacitor discharged directly into each pin. Note 6: The maximum ambient temperature (TA(max)) is dependant on the maximum operating junction temperature (TJ(max-op) = 125C), the maximum power dissipation of the device in the application (PD(max)), and the junction to ambient thermal resistance of the part/package in the application (JA), as given by the following equation: TA(max) = TJ(max-op) - (JA x PD(max)). Note 7: Junction to ambient thermal resistance is dependant on the application and board layout. In applications where high maximum power dissipation is possible, special care must be paid to thermal dissipation issues in board design. Note 8: Min Max limits are guaranteed by design, test or statistical analysis. Typical numbers are not guaranteed, but do represent the most likely norm. Note 9: VIN(MIN) = VOUT(NOM) + 0.5V, or 2.0V, whichever is higher. Note 10: Dropout voltage is voltage difference between input and output at which the output voltage drops to 100mV below its nominal value. This parameter only for output voltages above 2.0V Note 11: This electrical specification is guaranteed by design. Output Capacitor, Recommended Specifications Symbol COUT Parameter Output Capacitance Conditions Capacitance (Note 12) Nom 1.0 Limit Min Max F 0.7 ESR 5 Units 500 m Note 12: The Capacitor tolerance should be 30% or better over temperature. The full operating conditions for the application should be considered when selecting a suitable capacitor to ensure that the minimum value of capacitance is always met. Recommended capacitor is X7R. However, depending on the application, X5R, Y5V and Z5U can also be used. (See capacitor section in Applications Hints). Transient Test Conditions 20145808 FIGURE 1. PSRR Input Signal 7 www.national.com LP3996 Note 1: Absolute Maximum Ratings are limits beyond which damage can occur. Operating Ratings are conditions under which operation of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the Electrical Characteristics tables. LP3996 20145804 FIGURE 2. Line Transient Input Test Signal 20145805 FIGURE 3. Load Transient Input Signal www.national.com 8 Unless otherwise specified, CIN = 1.0F Ceramic, COUT1 = COUT2 = 1.0F Ceramic, CBYP = 10nF, VIN = VOUT2(NOM) + 1.0V, TA = 25C, VOUT1(NOM) = 3.3V, VOUT2(NOM) = 3.3V, Enable pins are tied to VIN. Output Voltage Change vs Temperature Ground Current vs Load Current, LDO1 20145810 20145813 Ground Current vs Load Current, LDO2 Ground Current vs VIN. ILOAD = 1mA 20145814 20145815 Dropout Voltage vs ILOAD, LDO2 Dropout Voltage vs ILOAD, LDO1 20145811 20145812 9 www.national.com LP3996 Typical Performance Characteristics. LP3996 Short Circuit Current, LDO1 Short Circuit Current, LDO2 20145852 20145853 Power Supply Rejection Ratio, LDO1 Power Supply Rejection Ratio, LDO2 20145855 20145854 Enable Start-up Time, CBYP=0 Enable Start-up Time, CBYP=10nF 20145860 www.national.com 20145861 10 LP3996 Line Transient, CBYP=10nF Line Transient, CBYP=0 20145820 20145819 Load Transient, LDO1 Load Transient, LDO2 20145851 20145850 Noise Density LDO1 Noise Density, LDO2 20145857 20145856 11 www.national.com LP3996 Power-on-Reset Start-up Operation Power-on-Reset Shutdown Operation 20145817 20145816 POR Delay Time 20145818 www.national.com 12 OPERATION DESCRIPTION The LP3996 is a low quiescent current, power management IC, designed specifically for portable applications requiring minimum board space and smallest components. The LP3996 contains two independently selectable LDOs. The first is capable of sourcing 150mA at outputs between 0.8V and 3.3V. The second can source 300mA at an output voltage of 0.8V to 3.3V. In addition, LDO2 contains power good flag circuit, which monitors the output voltage and indicates when it is within 8% of its nominal value. The flag will also act as a power-on-reset signal and, by adding an external capacitor; a delay may be programmed for the POR output. INPUT CAPACITOR An input capacitor is required for stability. It is recommended that a 1.0F capacitor be connected between the LP3996 input pin and ground (this capacitance value may be increased without limit). This capacitor must be located a distance of not more than 1cm from the input pin and returned to a clean analogue ground. Any good quality ceramic, tantalum, or film capacitor may be used at the input. Important: Tantalum capacitors can suffer catastrophic failures due to surge current when connected to a lowimpedance source of power (like a battery or a very large capacitor). If a tantalum capacitor is used at the input, it must be guaranteed by the manufacturer to have a surge current rating sufficient for the application. There are no requirements for the ESR (Equivalent Series Resistance) on the input capacitor, but tolerance and temperature coefficient must be considered when selecting the capacitor to ensure the capacitance will remain approximately 1.0F over the entire operating temperature range. OUTPUT CAPACITOR The LP3996 is designed specifically to work with very small ceramic output capacitors. A 1.0F ceramic capacitor (temperature types Z5U, Y5V or X7R) with ESR between 5m to 500m, is suitable in the LP3996 application circuit. For this device the output capacitor should be connected between the VOUT pin and ground. It is also possible to use tantalum or film capacitors at the device output, COUT (or VOUT), but these are not as attractive for reasons of size and cost (see the section Capacitor Characteristics). The output capacitor must meet the requirement for the minimum value of capacitance and also have an ESR value that is within the range 5m to 500m for stability. 20145840 FIGURE 4. Graph Showing a Typical Variation in Capacitance vs DC Bias The ceramic capacitor's capacitance can vary with temperature. The capacitor type X7R, which operates over a temperature range of -55C to +125C, will only vary the capacitance to within 15%. The capacitor type X5R has a similar tolerance over a reduced temperature range of -55C to +85C. Many large value ceramic capacitors, larger than 1F are manufactured with Z5U or Y5V temperature characteristics. Their capacitance can drop by more than 50% as the temperature varies from 25C to 85C. Therefore X7R is recommended over Z5U and Y5V in applications where the ambient temperature will change significantly above or below 25C. Tantalum capacitors are less desirable than ceramic for use as output capacitors because they are more expensive when comparing equivalent capacitance and voltage ratings in the 0.47F to 4.7F range. Another important consideration is that tantalum capacitors have higher ESR values than equivalent size ceramics. This means that while it may be possible to find a tantalum capacitor with an ESR value within the stable range, it would have to be larger in capacitance (which means bigger and more NO-LOAD STABILITY The LP3996 will remain stable and in regulation with no external load. This is an important consideration in some circuits, for example CMOS RAM keep-alive applications. CAPACITOR CHARACTERISTICS The LP3996 is designed to work with ceramic capacitors on the output to take advantage of the benefits they offer. For capacitance values in the range of 0.47F to 4.7F, ceramic capacitors are the smallest, least expensive and have the lowest ESR values, thus making them best for eliminating high frequency noise. The ESR of a typical 1.0F ceramic capacitor is in the range of 20m to 40m, which easily meets the ESR requirement for stability for the LP3996. 13 www.national.com LP3996 For both input and output capacitors, careful interpretation of the capacitor specification is required to ensure correct device operation. The capacitor value can change greatly, depending on the operating conditions and capacitor type. In particular, the output capacitor selection should take account of all the capacitor parameters, to ensure that the specification is met within the application. The capacitance can vary with DC bias conditions as well as temperature and frequency of operation. Capacitor values will also show some decrease over time due to aging. The capacitor parameters are also dependant on the particular case size, with smaller sizes giving poorer performance figures in general. As an example, Figure 4 shows a typical graph comparing different capacitor case sizes in a Capacitance vs. DC Bias plot. As shown in the graph, increasing the DC Bias condition can result in the capacitance value falling below the minimum value given in the recommended capacitor specifications table (0.7F in this case). Note that the graph shows the capacitance out of spec for the 0402 case size capacitor at higher bias voltages. It is therefore recommended that the capacitor manufacturers' specifications for the nominal value capacitor are consulted for all conditions, as some capacitor sizes (e.g. 0402) may not be suitable in the actual application. Application Hints LP3996 costly) than a ceramic capacitor with the same ESR value. It should also be noted that the ESR of a typical tantalum will increase about 2:1 as the temperature goes from 25C down to -40C, so some guard band must be allowed. 20145841 ENABLE CONTROL The LP3996 features active high enable pins for each regulator, EN1 and EN2, which turns the corresponding LDO off when pulled low. The device outputs are enabled when the enable lines are set to high. When not enabled the regulator output is off and the device typically consumes 2nA. If the application does not require the Enable switching feature, one or both enable pins should be tied to VIN to keep the regulator output permanently on. To ensure proper operation, the signal source used to drive the enable inputs must be able to swing above and below the specified turn-on / off voltage thresholds listed in the Electrical Characteristics section under VIL and VIH. A 0.1F capacitor will introduce a delay of approximately 100ms. POWER-ON-RESET The POR pin is an open-drain output which will be set to Low whenever the output of LDO2 falls out of regulation to approximately 90% of its nominal value. An external pull-up resistor, connected to VOUT or VIN, is required on this pin. During start-up, or whenever a fault condition is removed, the POR flag will return to the High state after the output reaches approximately 96% of its nominal value. By connecting a capacitor from the SET pin to GND, a delay to the rising condition of the POR flag may be introduced. The delayed signal may then be used as a Power-on -Reset for a microprocessor within the user's application. The duration of the delay is determined by the time to charge the delay capacitor to a threshold voltage of 1.25V at 1.2A from the SET pin as in the formula below. SAFE AREA OF OPERATION Due consideration should be given to operating conditions to avoid excessive thermal dissipation of the LP3996 or triggering its thermal shutdown circuit. When both outputs are enabled, the total power dissipation will be PD(LDO1) + PD(LDO2) Where PD = (VIN - VOUT) x IOUT for each LDO. In general, device options which have a large difference in output voltage will dissipate more power when both outputs are enabled, due to the input voltage required for the higher output voltage LDO. In such cases, especially at elevated ambient temperature, it may not be possible to operate both outputs at maximum current at the same time. www.national.com BYPASS CAPACITOR The internal voltage reference circuit of the LP3996 is connected to the CBYP pin via a high value internal resistor. An external capacitor, connected to this pin, forms a low-pass filter which reduces the noise level on both outputs of the device. There is also some improvement in PSSR and line transient performance. Internal circuitry ensures rapid charging of the CBYP capacitor during start-up. A 10nF, high quality ceramic capacitor with either NPO or COG dielectric is recommended due to their low leakage characteristics and low noise performance. 14 LP3996 15 www.national.com LP3996 Physical Dimensions inches (millimeters) unless otherwise noted LLP, 10 Lead, Package NS Package Number SDA10A www.national.com 16 LP3996 17 www.national.com LP3996 Dual Linear Regulator with 300mA and 150mA Outputs and Power-On-Reset Notes For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Design Support Amplifiers www.national.com/amplifiers WEBENCH www.national.com/webench Audio www.national.com/audio Analog University www.national.com/AU Clock Conditioners www.national.com/timing App Notes www.national.com/appnotes Data Converters www.national.com/adc Distributors www.national.com/contacts Displays www.national.com/displays Green Compliance www.national.com/quality/green Ethernet www.national.com/ethernet Packaging www.national.com/packaging Interface www.national.com/interface Quality and Reliability www.national.com/quality LVDS www.national.com/lvds Reference Designs www.national.com/refdesigns Power Management www.national.com/power Feedback www.national.com/feedback Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www.national.com/led PowerWise www.national.com/powerwise Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors Wireless (PLL/VCO) www.national.com/wireless THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION ("NATIONAL") PRODUCTS. NATIONAL MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS PUBLICATION AND RESERVES THE RIGHT TO MAKE CHANGES TO SPECIFICATIONS AND PRODUCT DESCRIPTIONS AT ANY TIME WITHOUT NOTICE. NO LICENSE, WHETHER EXPRESS, IMPLIED, ARISING BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. TESTING AND OTHER QUALITY CONTROLS ARE USED TO THE EXTENT NATIONAL DEEMS NECESSARY TO SUPPORT NATIONAL'S PRODUCT WARRANTY. EXCEPT WHERE MANDATED BY GOVERNMENT REQUIREMENTS, TESTING OF ALL PARAMETERS OF EACH PRODUCT IS NOT NECESSARILY PERFORMED. NATIONAL ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR BUYER PRODUCT DESIGN. BUYERS ARE RESPONSIBLE FOR THEIR PRODUCTS AND APPLICATIONS USING NATIONAL COMPONENTS. PRIOR TO USING OR DISTRIBUTING ANY PRODUCTS THAT INCLUDE NATIONAL COMPONENTS, BUYERS SHOULD PROVIDE ADEQUATE DESIGN, TESTING AND OPERATING SAFEGUARDS. EXCEPT AS PROVIDED IN NATIONAL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, NATIONAL ASSUMES NO LIABILITY WHATSOEVER, AND NATIONAL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO THE SALE AND/OR USE OF NATIONAL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. LIFE SUPPORT POLICY NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. Copyright(c) 2008 National Semiconductor Corporation For the most current product information visit us at www.national.com National Semiconductor Americas Technical Support Center Email: new.feedback@nsc.com Tel: 1-800-272-9959 www.national.com National Semiconductor Europe Technical Support Center Email: europe.support@nsc.com German Tel: +49 (0) 180 5010 771 English Tel: +44 (0) 870 850 4288 National Semiconductor Asia Pacific Technical Support Center Email: ap.support@nsc.com National Semiconductor Japan Technical Support Center Email: jpn.feedback@nsc.com IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI's terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Applications Audio www.ti.com/audio Communications and Telecom www.ti.com/communications Amplifiers amplifier.ti.com Computers and Peripherals www.ti.com/computers Data Converters dataconverter.ti.com Consumer Electronics www.ti.com/consumer-apps DLP(R) Products www.dlp.com Energy and Lighting www.ti.com/energy DSP dsp.ti.com Industrial www.ti.com/industrial Clocks and Timers www.ti.com/clocks Medical www.ti.com/medical Interface interface.ti.com Security www.ti.com/security Logic logic.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defense Power Mgmt power.ti.com Transportation and Automotive www.ti.com/automotive Microcontrollers microcontroller.ti.com Video and Imaging RFID www.ti-rfid.com OMAP Mobile Processors www.ti.com/omap Wireless Connectivity www.ti.com/wirelessconnectivity TI E2E Community Home Page www.ti.com/video e2e.ti.com Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright (c) 2011, Texas Instruments Incorporated