MIC5365/6 High-Performance Single 150mA LDO General Description Features The MIC5365/6 is an advanced general purpose linear regulator offering high power supply rejection (PSRR) in an ultra-small 1mm x 1mm package. The MIC5366 includes an auto-discharge feature that is activated when the enable pin is low. The MIC5365/6 is capable of sourcing 150mA output current and offers high PSRR making it an ideal solution for any portable electronic application. Ideal for battery-powered applications, the MIC5365/6 offers 2% initial accuracy, low dropout voltage (155mV @ 150mA), and low ground current (typically 29A). The MIC5365/6 can also be put into a zero-off-mode current state, drawing virtually no current when disabled. The MIC5365/6 is available in several advanced packages including a lead-free (RoHS-compliant) 1mm x 1mm Thin (R) 2 MLF occupying only 1mm of PCB area, a 75% reduction in board area compared to SC-70 and 2mm x 2mm MLF packages. It is also available in a thin SOT23-5 package. The MIC5365/6 has an operating junction temperature range of -40C to 125C. Data sheets and support documentation can be found on Micrel's web site at: www.micrel.com. * Tiny 1mm x 1mm thin MLF, SC-70-5, and thin SOT23-5 packages * Input voltage range: 2.5V to 5.5V * 150mA guaranteed output current * Stable with 1F ceramic output capacitors * Low dropout voltage - 155mV @ 150mA * Excellent load/line transient response * Low quiescent current - 29A * High PSRR - 70dB * Output discharge circuit - MIC5366 * High output accuracy - 2% initial accuracy * Thermal-shutdown and current-limit protection Applications * * * * Mobile phones Digital cameras GPS, PDAs, PMP, handhelds Portable electronics ___________________________________________________________________________________________________________ Typical Application MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. Micrel Inc. * 2180 Fortune Drive * San Jose, CA 95131 * USA * tel +1 (408) 944-0800 * fax + 1 (408) 474-1000 * http://www.micrel.com July 16, 2013 Revision 3.1 Micrel, Inc. MIC5365/6 Block Diagrams MIC5365 Block Diagram MIC5366 Block Diagram July 16, 2013 2 Revision 3.1 Micrel, Inc. MIC5365/6 Ordering Information Marking Code Output Voltage Temperature Range Package Lead Finish MIC5365-1.0YMT 5C 1.0V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-1.2YMT 54 1.2V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-1.3YMT 55 1.3V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-1.5YMT 5F 1.5V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-1.8YMT 5G 1.8V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-2.0YMT 5H 2.0V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-2.5YMT 5J 2.5V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-2.6YMT 5K 2.6V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-2.7YMT 5L 2.7V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-2.8YMT 5M 2.8V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-2.85YMT 5N 2.85V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-2.9YMT 5O 2.9V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-3.0YMT 5P 3.0V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-3.1YMT 5Q 3.1V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-3.3YMT 5S 3.3V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5365-1.0YC5 65C 1.0V -40C to +125C SC-70-5 Pb-Free MIC5365-1.2YC5 654 1.2V -40C to +125C SC-70-5 Pb-Free MIC5365-1.3YC5 655 1.3V -40C to +125C SC-70-5 Pb-Free MIC5365-1.5YC5 65F 1.5V -40C to +125C SC-70-5 Pb-Free MIC5365-1.8YC5 65G 1.8V -40C to +125C SC-70-5 Pb-Free MIC5365-2.0YC5 65H 2.0V -40C to +125C SC-70-5 Pb-Free MIC5365-2.5YC5 65J 2.5V -40C to +125C SC-70-5 Pb-Free MIC5365-2.6YC5 65K 2.6V -40C to +125C SC-70-5 Pb-Free MIC5365-2.7YC5 65L 2.7V -40C to +125C SC-70-5 Pb-Free MIC5365-2.8YC5 65M 2.8V -40C to +125C SC-70-5 Pb-Free MIC5365-2.85YC5 65N 2.85V -40C to +125C SC-70-5 Pb-Free MIC5365-2.9YC5 65O 2.9V -40C to +125C SC-70-5 Pb-Free MIC5365-3.0YC5 65P 3.0V -40C to +125C SC-70-5 Pb-Free MIC5365-3.3YC5 65S 3.3V -40C to +125C SC-70-5 Pb-Free MIC5365-1.2YD5 645 1.2V -40C to +125C 5-Pin TSOT23 Pb-Free MIC5365-1.8YD5 6G5 1.8V -40C to +125C 5-Pin TSOT23 Pb-Free MIC5365-2.8YD5 6M5 2.8V -40C to +125C 5-Pin TSOT23 Pb-Free MIC5365-2.85YD5 6N5 2.85V -40C to +125C 5-Pin TSOT23 Pb-Free MIC5365-3.3YD5 6S5 3.3V -40C to +125C 5-Pin TSOT23 Pb-Free MIC5366-1.0YMT* 6C 1.0V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free Part Number MIC5366-1.2YMT* 64 1.2V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-1.3YMT* 65 1.3V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-1.5YMT* 6F 1.5V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-1.8YMT* 6G 1.8V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-2.0YMT* 6H 2.0V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-2.5YMT* 6J 2.5V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-2.6YMT* 6K 2.6V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-2.7YMT* 6L 2.7V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free July 16, 2013 3 Revision 3.1 Micrel, Inc. MIC5365/6 Ordering Information (Continued) Part Number Marking Code Output Voltage Temperature Range Package Lead Finish MIC5366-2.8YMT* 6M 2.8V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-2.85YMT* 6N 2.85V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-2.9YMT* 6O 2.9V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-3.0YMT* 6P 3.0V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-3.1YMT* 6Q 3.1V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-3.3YMT* 6S 3.3V -40C to +125C 4-Pin 1mm x 1mm Thin MLF Pb-Free MIC5366-1.0YC5* 66C 1.0V -40C to +125C SC-70-5 Pb-Free MIC5366-1.2YC5* 664 1.2V -40C to +125C SC-70-5 Pb-Free MIC5366-1.3YC5* 665 1.3V -40C to +125C SC-70-5 Pb-Free MIC5366-1.5YC5* 66F 1.5V -40C to +125C SC-70-5 Pb-Free MIC5366-1.8YC5* 66G 1.8V -40C to +125C SC-70-5 Pb-Free MIC5366-2.0YC5* 66H 2.0V -40C to +125C SC-70-5 Pb-Free MIC5366-2.5YC5* 66J 2.5V -40C to +125C SC-70-5 Pb-Free MIC5366-2.6YC5* 66K 2.6V -40C to +125C SC-70-5 Pb-Free MIC5366-2.7YC5* 66L 2.7V -40C to +125C SC-70-5 Pb-Free MIC5366-2.8YC5* 66M 2.8V -40C to +125C SC-70-5 Pb-Free MIC5366-2.85YC5* 66N 2.85V -40C to +125C SC-70-5 Pb-Free MIC5366-2.9YC5* 66O 2.9V -40C to +125C SC-70-5 Pb-Free MIC5366-3.0YC5* 66P 3.0V -40C to +125C SC-70-5 Pb-Free MIC5366-3.3YC5* 66S 3.3V -40C to +125C SC-70-5 Pb-Free Notes: 1. Other voltages available. Contact Micrel for details. 2. Under bar symbol ( _ ) may not be to scale. 3. Thin MLF = Pin 1 identifier. 4. Thin MLF is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. * MIC5366 offers Auto-Discharge function. July 16, 2013 4 Revision 3.1 Micrel, Inc. MIC5365/6 Pin Configuration 4-Pin 1mm x 1mm Thin MLF (MT) Fixed Version 5-Pin Thin SOT23 (D5) Fixed Version 5-Pin SC-70 (C5) Fixed Version Pin Description Pin Number Pin Name Thin MLF-4 1 VOUT - - 1 - VIN VIN Supply Input. 2 GND GND GND Ground 3 EN EN EN 4 VIN - - 4 - NC NC 5 - VOUT VOUT EP HS Pad NA NA July 16, 2013 Pin Name TSOT23-5 Pin Name SC-70-5 Pin Function Output Voltage. Enable Input: Active High. High = ON; Low = OFF. Do not leave floating. Supply Input. No connect. Not internally connected. Output Voltage. Exposed Heatsink Pad. 5 Revision 3.1 Micrel, Inc. MIC5365/6 Absolute Maximum Ratings(1) Operating Ratings(2) Supply Voltage (VIN) ............................................... 0V to 6V Enable Voltage (VEN). ............................................. 0V to VIN (3) Power Dissipation (PD) ........................... Internally Limited Lead Temperature (soldering, 3sec) ........................ 260C Junction Temperature (TJ) ........................ -40C to +150C Storage Temperature (Ts) ......................... -65C to +150C (4) ESD Rating .................................................................. 2kV Supply Voltage (VIN) ......................................... 2.5V to 5.5V Enable Voltage (VEN) .............................................. 0V to VIN Junction Temperature (TJ) ........................ -40C to +125C Junction Thermal Resistance 1mm x 1mm Thin MLF-4 (JA) ......................... 240C/W SC-70-5 (JA) ................................................ 256.5C/W Thin SOT23-5 (JA) .......................................... 253C/W Electrical Characteristics(5) VIN = VEN = VOUT + 1V; CIN = COUT = 1F; IOUT = 100A; TJ = 25C, bold values indicate -40C to +125C, unless noted. Parameter Output Voltage Accuracy Line Regulation Load Regulation Dropout Voltage (6) (7) Ground Pin Current (8) Ground Pin Current in Shutdown Ripple Rejection Condition Min. Max. Units Variation from nominal VOUT -2.0 Typ. +2.0 % Variation from nominal VOUT; -40C to +125C -3.0 +3.0 % 0.3 % VIN = VOUT +1V to 5.5V; IOUT = 100A 0.02 IOUT = 100A to 150mA 0.3 1 % IOUT = 50mA; VOUT 2.8V 55 110 mV IOUT = 150mA; VOUT 2.8V 155 310 mV IOUT = 50mA; VOUT < 2.8V 60 135 mV IOUT = 150mA; VOUT < 2.8V 180 380 mV IOUT = 0mA 29 39 A VEN 0.2V 0.05 1 A f = up to 1kHz; COUT = 1F 80 dB f = 1kHz - 10kHz; COUT = 1F 65 dB Current Limit VOUT = 0V Output Voltage Noise COUT = 1F, 10Hz to 100kHz 200 325 200 550 VRMS mA Auto-Discharge NFET Resistance MIC5366 Only; VEN = 0V; VIN = 3.6V; IOUT = -3mA 30 Enable Input Enable Input Voltage Enable Input Current Turn-on Time Logic Low 0.2 V 1.2 Logic High V VIL 0.2V 0.01 1 A VIH 1.2V 0.01 1 A 50 125 s COUT = 1F; IOUT = 150mA Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. The maximum allowable power dissipation of any TA (ambient temperature) is PD(max) = TJ(max) - TA) / JA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. 4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. 5. Specification for packaged product only. 6. Regulation is measured at constant junction temperature using low duty cycle pulse testing, changes in output voltage due to heating effects are covered by the thermal regulation specification. 7. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differential. For outputs below 2.5V, dropout voltage is the input-to-output differential with the minimum input voltage 2.5V. 8. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin current. July 16, 2013 6 Revision 3.1 Micrel, Inc. MIC5365/6 Typical Characteristics Power Supply Rejection Ratio 160 Dropout Voltage vs. Load Current 200 140 100A Dropout Voltage vs. Temperature VOUT = 3.3V CIN = C OUT = 1F 150m A 120 150 100 75mA 60 38 1M Ground Current vs. Supply Voltage Ground Current vs. Load Current 26 40 38 150mA 36 34 100mA 32 50mA 30 28 32 24 VEN = V IN VOUT = 3.3V CIN = C OUT = 1F 22 3.0 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) VIN = V EN = V OUT + 1V VOUT = 3.3V CIN = C OUT = 1F 30 5.5 Output Voltage vs. Load Current 28 02 3.4 3.45 3.3 3.40 3.2 3.1 3.35 3.0 3.30 55 07 5 100 125 150 LOAD CURRENT (mA) Output Voltage vs. Supply Voltage 26 24 100A VIN = V EN = V OUT + 1V VOUT = 3.3V 22 CIN = C OUT = 1F 20 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C) 3.5 1mA Output Voltage vs. Temperature 3.4 50mA 3.3 150mA 2.9 3.25 0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C) Ground Current vs. Temperature 34 100A 28 3.2 2.8 VIN = V EN = V OUT + 1V VOUT = 3.3V CIN = C OUT = 1F COUT = 1F/10V 3.20 3.15 3.10 0 55 07 5 100 125 150 LOAD CURRENT (mA) 36 30 3.50 10mA 38 32 20 2.5 0 02 40 150mA 34 VOUT = 3.3V CIN = C OUT = 1F 20 100 1k 10k 100k FREQUENCY (Hz) 36 50mA 50 40 VIN = VOUT +1V VOUT = 2.5V COUT = 1F 0 10 100m A 100 80 150mA 20 40 60 80 100 120 140 160 LOAD CURRENT (mA) July 16, 2013 2.7 2.6 2.5 2.5 VEN = V IN VOUT = 3.3V CIN = C OUT = 1F 3.0 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) 7 3.1 5.5 VIN = V OUT + 1V VOUT = 3.3V CIN = C OUT = 1F IOUT = 150m A 3.0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C) Revision 3.1 Micrel, Inc. MIC5365/6 Typical Characteristics (Continued) 400 Current Limit vs. Supply Voltage 10 350 1 300 0.1 0.01 VIN = V EN = 4.5V 250 200 3.0 Output Noise Spectral Density VOUT = 2.8V CIN = C OUT = 1F VOUT = 3.3V CIN = C OUT = 1F 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) July 16, 2013 Noise (10Hz to 100kHz) = 198.19V 5.5 0.001 10 100 RMS 1k 10k 100k 1M 10M FREQUENCY (Hz) 8 Revision 3.1 Micrel, Inc. MIC5365/6 Functional Characteristics July 16, 2013 9 Revision 3.1 Micrel, Inc. MIC5365/6 Application Information Enable/Shutdown The MIC5365/6 comes with an active-high enable pin that allows the regulator to be disabled. Forcing the enable pin low disables the regulator and sends it into a "zero" off-mode-current state. In this state, current consumed by the regulator goes nearly to zero. Forcing the enable pin high enables the output voltage. The active-high enable pin uses CMOS technology and the enable pin cannot be left floating; a floating enable pin may cause an indeterminate state on the output. MIC5365 and MIC5366 are Low noise 150mA LDOs. The MIC5366 includes an auto-discharge circuit that is switched on when the regulator is disabled through the Enable pin. The MIC5365/6 regulator is fully protected from damage due to fault conditions, offering linear current limiting and thermal shutdown. Input Capacitor The MIC5365/6 is a high-performance, high bandwidth device. An input capacitor of 1F is required from the input to ground to provide stability. Low-ESR ceramic capacitors provide optimal performance at a minimum of space. Additional high-frequency capacitors, such as small-valued NPO dielectric-type capacitors, help filter out high-frequency noise and are good practice in any RF-based circuit. X5R or X7R dielectrics are recommended for the input capacitor. Y5V dielectrics lose most of their capacitance over temperature and are therefore, not recommended. Thermal Considerations The MIC5365/6 is designed to provide 150mA of continuous current in a very small package. Maximum ambient operating temperature can be calculated based on the output current and the voltage drop across the part. For example if the input voltage is 3.6V, the output voltage is 2.8V, and the output current = 150mA. The actual power dissipation of the regulator circuit can be determined using the equation: Output Capacitor The MIC5365/6 requires an output capacitor of 1F or greater to maintain stability. The design is optimized for use with low-ESR ceramic chip capacitors. High ESR capacitors are not recommended because they may cause high frequency oscillation. The output capacitor can be increased, but performance has been optimized for a 1F ceramic output capacitor and does not improve significantly with larger capacitance. X7R/X5R dielectric-type ceramic capacitors are recommended because of their temperature performance. X7R-type capacitors change capacitance by 15% over their operating temperature range and are the most stable type of ceramic capacitors. Z5U and Y5V dielectric capacitors change value by as much as 50% and 60%, respectively, over their operating temperature ranges. To use a ceramic chip capacitor with Y5V dielectric, the value must be much higher than an X7R ceramic capacitor to ensure the same minimum capacitance over the equivalent operating temperature range. PD = (VIN - VOUT1) I OUT + VIN IGND Because this device is CMOS and the ground current is typically <100A over the load range, the power dissipation contributed by the ground current is < 1% and can be ignored for this calculation: PD = (3.6V - 2.8V) x 150mA PD = 0.120W To determine the maximum ambient operating temperature of the package, use the junction-to-ambient thermal resistance of the device and the following basic equation: TJ(max) - TA PD(MAX) = JA No-Load Stability Unlike many other voltage regulators, the MIC5365/6 will remain stable and in regulation with no load. This is especially important in CMOS RAM keep-alive applications. July 16, 2013 TJ(max) = 125C, the maximum junction temperature of the die, JA thermal resistance = 250C/W for the YMT package, 256.5C/W for the SC-70-5 package and 235C/W for the MIC5365/6 in the TSOT23-5 package . 10 Revision 3.1 Micrel, Inc. MIC5365/6 Substituting PD for PD(max) and solving for the ambient operating temperature will give the maximum operating conditions for the regulator circuit. The junction-toambient thermal resistance for the minimum footprint is 250C/W. The maximum power dissipation must not be exceeded for proper operation. For example, when operating the MIC5365-2.8YMT at an input voltage of 3.6V and 150mA load with a minimum footprint layout, the maximum ambient operating temperature TA can be determined as follows: 0.120W = (125C - TA)/(250C/W) TA = 95C Therefore the maximum ambient operating temperature of 95C is allowed in a 1mm x 1mm MLF package. For a full discussion of heat sinking and thermal effects on voltage regulators, refer to the "Regulator Thermals" section of Micrel's Designing with Low-Dropout Voltage Regulators handbook. This information can be found on Micrel's website at: http://www.micrel.com/_PDF/other/LDOBk_ds.pdf July 16, 2013 11 Revision 3.1 Micrel, Inc. MIC5365/6 Typical Application (YMT) Bill of Materials Item Part Number C1, C2 GRM155R61A105KE15D U1 MIC5365/6-xxYMT Manufacturer Murata (1) (2) Micrel, Inc. Description Qty. Capacitor, 1F Ceramic, 10V, X5R, Size 0402 2 High-Performance Single 150mA LDO 1 Notes: 1. Murata: www.murata.com. 2. Micrel, Inc.: www.micrel.com. July 16, 2013 12 Revision 3.1 Micrel, Inc. MIC5365/6 Typical Application (YC5) Bill of Materials Item Part Number Manufacturer (1) C1, C2 C1005X5R1A105K TDK U1 MIC5365/6-xxYC5 Micrel, Inc. (2) Description Qty. Capacitor, 1F Ceramic, 10V, X5R, Size 0402 2 High-Performance Single 150mA LDO 1 Notes: 1. TDK: www.tdk.com. 2. Micrel, Inc.: www.micrel.com. July 16, 2013 13 Revision 3.1 Micrel, Inc. MIC5365/6 Typical Application (YD5) Bill of Materials Item Part Number Manufacturer (1) C1, C2 C1005X5R1A105K TDK U1 MIC5365/6-xxYD5 Micrel, Inc. (2) Description Qty. Capacitor, 1F Ceramic, 10V, X5R, Size 0402 2 High-Performance Single 150mA LDO 1 Notes: 1. TDK: www.tdk.com. 2. Micrel, Inc.: www.micrel.com. July 16, 2013 14 Revision 3.1 Micrel, Inc. MIC5365/6 PCB Layout Recommendations (1mm x 1mm Thin MLF) Top Layer Bottom Layer July 16, 2013 15 Revision 3.1 Micrel, Inc. MIC5365/6 PCB Layout Recommendations (SC-70-5) Top Layer Bottom Layer July 16, 2013 16 Revision 3.1 Micrel, Inc. MIC5365/6 Package Information(1) 4-Pin 1mm x 1mm Thin MLF (MT) Note: 1. Package information is correct as of the publication date. For updates and most current information, go to www.micrel.com. July 16, 2013 17 Revision 3.1 Micrel, Inc. MIC5365/6 Package Information(1) (Continued) 5-Pin SC-70 (C5) July 16, 2013 18 Revision 3.1 Micrel, Inc. MIC5365/6 Package Information(1) (Continued) 5-Pin Thin SOT23 (D5) July 16, 2013 19 Revision 3.1 Micrel, Inc. MIC5365/6 MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and 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. Except as provided in Micrel's terms and conditions of sale for such products, Micrel assumes no liability whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser's use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser's own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. (c) 2008 Micrel, Incorporated. July 16, 2013 20 Revision 3.1