TS30011 SEMTECH | Alldatasheet

Document overview

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Technical content

Features

  • Fixed output voltage choices: 1.5V, 1.8V, 2.5V, 3.3V, and 5V with +/- 2% output tolerance
  • Adjustable version output voltage range: 0.9V to (VCC – 1V) with +/-1.5% reference.
  • Wide input voltage range Œ TS30011/12: 4.5V to 24V (26.4V Abs Max Œ TS30013: 4.5V to 18V (20V Abs Max)
  • 1MHz +/- 10% fixed switching frequency
  • Continuous output current: 1A (TS30011), 2A (TS30012) and 3A (TS30013)
  • High efficiency – up to 95%
  • Current mode PWM control with PFM mode for improved light load efficiency
  • Voltage supervisor for VOUT reported at the PG pin
  • Input supply under voltage lockout
  • Soft start for controlled startup with no overshoot
  • Full protection for over-current, over-temperature, and VOUT over-voltage
  • Less than 10uA in standby mode
  • Low external component count

Applications

  • On-card switching regulators
  • Set-top box, DVD, LCD, LED supply
  • Industrial power supplies High Efficiency 1A/2A/3A Current-Mode Synchronous Buck DC/DC Converter, 1MHz

Description

The TS30011 (1A), TS30012 (2A) and TS30013 (3A) are DC/DC synchronous switching regulator with fully integrated power switches, internal compensation, and full fault protection. The switching frequency of 1MHz enables the use of small filter components resulting in minimal board space and reduced BOM costs. The TS30011/12/13 utilizes current mode feedback in normal regulation PWM mode. When the regulator is placed in standby (EN is low), the device draws less than 10uA quiescent current. The TS30011/12/13 integrates a wide range of protection circuitry including input supply under-voltage lockout, output voltage soft start, current limit, and thermal shutdown. The TS30011/12/13 includes supervisory reporting through the PG (Power Good) open drain output to interface other components in the system. Summary Specification

  • Junction operating temperature -40 °C to 125 °C
  • Packaged in a 16pin QFN (3x3) Typical Application Circuit

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 2 of 18 Semtech Pin Configuration Figure 1: 16 Lead 3x3 QFN, Top View Pin Description Pin # Pin Symbol Function Description 1 VSW Switching Voltage Node Connected to 4.7uH (typical) inductor

2 VCC Input Voltage Input voltage

3 VCC Input Voltage Input voltage

4 GND GND Primary ground for the majority of the device except the low-side power FET

5 FB Feedback Input Regulator FB Voltage. Connects to VOUT for fixed mode and the output resistor divider for adjustable mode

6 NC No Connect Not Connected

7 NC No Connect Not Connected

8 PG Power Good Output Open-drain output

9 EN Enable Input Above 2.2V the device is enabled. GND the pin to put device in standby mode. Includes internal pull-up 10 BST Bootstrap Capacitor Bootstrap capacitor for the high-side FET gate driver. A ceramic capacitor in the range 15 nF - 200 nF from BST pin to VSW pin

11 VCC Input Voltage Input Voltage

12 VSW Switching Voltage Node Connected to 4.7uH (typical) inductor 13 VSW Switching Voltage Node Connected to 4.7uH (typical) inductor

14 PGND Power GND GND supply for internal low-side FET/integrated diode

15 PGND Power GND GND supply for internal low-side FET/integrated diode

16 VSW Switching Voltage Node Connected to 4.7uH (typical) inductor

17 PAD Power PAD Power GND

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 4 of 18 Semtech Absolute Maximum Ratings Thermal Characteristics Recommended Operating Conditions Over operating free–air temperature range unless otherwise noted(1, 2) Parameter Value Units VCC -0.3 to 26.4 (-0.3 to 20 for TS30013) V BST -0.3 to (VCC+6) V VSW -1 to 26.4 (-1 to 20 for TS30013) V EN, PG,FB -0.3 to 6 V Electrostatic Discharge – Human Body Model +/-2k V Electrostatic Discharge – Charge Device Model +/-500 V Lead Temperature (soldering, 10 seconds) 260 OC (1) Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute–maximum–rated conditions for extended periods may affect device reliability. (2) All voltage values are with respect to network ground terminal. Parameter Symbol Value Units Thermal Resistance Junction to Air (Note 1) θJA 34.5 OC/W Thermal Resistance Junction to Case (Note 1) θJC 2.5 OC/W Storage Temperature Range TSTG -65 to 150 OC Maximum Junction Temperature TJ MAX 150 OC Operating junction Temperature Range TJ -40 to 125 OC Note 1: Assumes 16LD 3x3 QFN with hi-K JEDEC board and 13.5 inch2 of 1 oz Cu and 4 thermal vias connected to PAD Parameter Symbol Min Type Max Units Input Operating Voltage VCC 4.5 12 24 (18 for TS30013) V Bootstrap Capacitor CBST 15 22 200 nF Output Filter Inductor Typical Value (Note 1) LOUT 3.76 4.7 5.64 uH Output Filter Capacitor Typical Value (Note 2) COUT 33 44 (2 x 22) uF Output Filter Capacitor ESR COUT-ESR 2 100 mΩ Input Supply Bypass Capacitor Typical Value (Note 3) CBYPASS 8 10 uF Note 1: For best performance, an inductor with a saturation current rating higher than the maximum VOUT load requirement plus the inductor current ripple. Note 2: For best performance, a low ESR ceramic capacitor should be used. Note 3: For best performance, a low ESR ceramic capacitor should be used. If CBYPASS is not a low ESR ceramic capacitor, a 0.1uF ceramic capacitor should be added in parallel to CBYPASS

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 5 of 18 Semtech

Electrical Characteristics

Electrical Characteristics, TJ = -40C to 125C, VCC = 12V (unless otherwise noted) Parameter Symbol Conditions Min. Typ. Max. Units VCC Supply Voltage Input Supply Voltage VCC 4.5 (18 for TS30013) V Quiescent current Normal Mode ICC-NORM VCC = 12V, ILOAD = 0A 5.2 mA Quiescent current Normal Mode – Non-switching ICC-NOSWITCH VCC=12V, ILOAD=0A, Non-switching 2.3 mA Quiescent current Standby Mode ICC-STBY VCC = 12V, EN = 0V 5 10 μA VCC Under Voltage Lockout Input Supply Under Voltage Threshold VCC-UV VCC Increasing 4.3 4.5 V Input Supply Under Voltage Threshold Hysteresis VCC-UV_HYST 350 mV OSC Oscillator Frequency fOSC 0.9 1 1.1 MHz PG Open Drain Output PG Release Timer tPG 10 ms High-Level Output Leakage IOH-PG VPG = 5V 0.5 μA Low-Level Output Voltage VOL-PG IPG = -0.3mA 0.01 V EN Input Voltage Thresholds High Level Input Voltage VIH-EN 2.2 V Low Level Input Voltage VIL-EN 0.8 V Input Hysteresis VHYST-EN 480 mV Input Leakage IIN-EN VEN=5V 3.5 μA VEN=0V -1.5 μA Thermal Shutdown Thermal Shutdown Junction Temperature TSD Note: not tested in production 150 170 °C TSD Hysteresis TSDHYST Note: not tested in production 10 °C

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 6 of 18 Semtech Regulator Characteristics Electrical Characteristics, TJ = -40C to 125C, VCC = 12V (unless otherwise noted) Parameter Symbol Conditions Min. Typ. Max. Units Switch Mode Regulator: L=4.7uH and C=2 x 22uF Output Voltage Tolerance in PWM Mode VOUT-PWM ILOAD =1A VOUT – 2% VOUT VOUT + 2% V Output Voltage Tolerance in PFM Mode VOUT-PFM ILOAD = 0A VOUT – 1% VOUT + 1% VOUT + 3% V High Side Switch On Resistance RDSON IVSW = -1A (Note 1) 180 mΩ Low Side Switch On Resistance IVSW = 1A (Note 1) 120 mΩ Output Current IOUT TS30013 (Note 4) 3 A TS30012 (Note 4) 2 A TS30011 1 A Over Current Detect (High Side Switch Current) IOCD TS30013 3.4 3.8 4.4 A TS30012 2.4 2.8 3.4 A TS30011 1.4 1.8 2.4 A Feedback Reference (Adjustable Mode) FBTH (Note 3) 0.886 0.9 0.914 V Feedback Reference Tolerance FBTH-TOL (Note 3) -1.5 1.5 % Soft start Ramp Time tSS 4 ms PFM Mode FB Comparator Threshold FBTH-PFM VOUT + 1% V VOUT Under Voltage Threshold VOUT-UV 91% VOUT 93% VOUT 95% VOUT VOUT Under Voltage Hysteresis VOUT-UV_HYST 1.5% VOUT VOUT Over Voltage Threshold VOUT-OV 103% VOUT VOUT Over Voltage Hysteresis VOUT-OV_HYST 1% VOUT Max Duty Cycle DUTYMAX (Note 2) 95% 97% 99% Note 1: RDSON is characterized at 1A and tested at lower current in production. Note 2: Regulator VSW pin is forced off for 240ns every 8 cycles to ensure the BST cap is replenished. Note 3: For the adjustable version, the ratio of VCC/Vout cannot exceed 16. Note 4: Based on Over Current Detect testing

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 7 of 18 Semtech Functional Description The TS30011/12/13 current-mode synchronous step-down power supply product is ideal for use in the commercial, industrial, and automotive market segments. It includes flexibility to be used for a wide range of output voltages and is optimized for high efficiency power conversion with low RDSON integrated synchronous switches. A 1MHz internal switching frequency facilitates low cost LC filter combinations. Additionally, the fixed output versions enable a minimum external component count to provide a complete regulation solution with only 4 external components: an input bypass capacitor, an inductor, an output capacitor, and the bootstrap capacitor. The regulator automatically transitions between PFM and PWM mode to maximize efficiency for the load demand. The TS30011/12/13 was designed to provide these system benefits:

  • Reduced board real estate
  • Lower system cost Œ Lower cost inductor Œ Low external parts count
  • Ease of design Œ Bill of Materials and suggested board layout provided Œ Power Good output Œ Integrated compensation network Œ Wide input voltage range
  • Robust solution Œ Over current, over voltage and over temperature protection Detailed Pin Description Unregulated input, VCC This terminal is the unregulated input voltage source for the IC. It is recommended that a 10uF bypass capacitor be placed close to the device for best performance. Since this is the main supply for the IC, good layout practices need to be followed for this connection. Bootstrap control, BST This terminal will provide the bootstrap voltage required for the upper internal NMOS switch of the buck regulator. An external ceramic capacitor placed between the BST input terminal and the VSW pin will provide the necessary voltage for the upper switch. In normal operation the capacitor is re-charged on every low side synchronous switching action. In the case of where the switch mode approaches 100% duty cycle for the high side FET, the device will automatically reduce the duty cycle switch to a minimum off time on every 8th cycle to allow this capacitor to re-charge. Sense feedback, FB This is the input terminal for the output voltage feedback. For the fixed mode versions, this should be hooked directly to VOUT. The connection on the PCB should be kept as short as possible, and should be made as close as possible to the capacitor. The trace should not be shared with any other connection. (Figure 23) For adjustable mode versions, this should be connected to the external resistor divider. To choose the resistors, use the following equation: VOUT = 0.9 (1 + RTOP/RBOT) The input to the FB pin is high impedance, and input current should be less than 100nA. As a result, good layout practices are required for the feedback resistors and feedback traces. When using the adjustable version, the feedback trace should be kept as short as possible and minimum width to reduce stray capacitance and to reduce the injection of noise. For the adjustable version, the ratio of VCC/VOUT cannot exceed 16.

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 8 of 18 Semtech Switching output, VSW This is the switching node of the regulator. It should be connected directly to the 4.7uH inductor with a wide, short trace and to one end of the Bootstrap capacitor. It is switching between VCC and PGND at the switching frequency. Ground, GND This ground is used for the majority of the device including the analog reference, control loop, and other circuits. Power Ground, PGND This is a separate ground connection used for the low side synchronous switch to isolate switching noise from the rest of the device. (Figure 23) Enable, high-voltage, EN This is the input terminal to activate the regulator. The input threshold is TTL/CMOS compatible. It also has an internal pull- up to ensure a stable state if the pin is disconnected. Power Good Output, PG This is an open drain, active low output. The switched mode output voltage is monitored and the PG line will remain low until the output voltage reaches the VOUT-UV threshold. Once the internal comparator detects the output voltage is above the desired threshold, an internal delay timer is activated and the PG line is de-asserted to high once this delay timer expires. In the event the output voltage decreases below VOUT-UV, the PG line will be asserted low and remain low until the output rises above VOUT-UV and the delay timer times out. See Figure 2 for the circuit schematic for the PG signal. Internal Protection Details Internal Current Limit The current through the high side FET is sensed on a cycle by cycle basis and if current limit is reached, it will abbreviate the cycle. In addition, the device senses the FB pin to identify hard short conditions and will direct the VSW output to skip 4 cycles if current limit occurs when FB is low. This allows current built up in the inductor during the minimum on time to decay sufficiently. Current limit is always active when the regulator is enabled. Soft start ensures current limit does not prevent regulator startup. Under extended over current conditions (such as a short), the device will automatically disable. Once the over current condition is removed, the device returns to normal operation automatically. (Alternately the factory can configure the device’s NVM to shutdown the regulator if an extended over current event is detected and require a toggle of the Enable pin to return the device to normal operation.) Thermal Shutdown If the temperature of the die exceeds 170°C (typical), the VSW outputs will tri-state to protect the device from damage. The PG and all other protection circuitry will stay active to inform the system of the failure mode. Once the device cools to 160°C (typical), the device will start up again, following the normal soft start sequence. If the device reaches 170°C, the shutdown/ restart sequence will repeat. Reference Soft Start The reference in this device is ramped at a rate of 4ms to prevent the output from overshoot during startup. This ramp restarts whenever there is a rising edge sensed on the Enable pin. This occurs in both the fixed and adjustable versions. During the soft start ramp, current limit is still active, and will still protect the device in case of a short on the output. Output Overvoltage If the output of the regulator exceeds 103% of the regulation voltage, the VSW outputs will tri-state to protect the device from damage. This check occurs at the start of each switching cycle. If it occurs during the middle of a cycle, the switching for that cycle will complete, and the VSW outputs will tri-state at the beginning of the next cycle. VCC Under-Voltage Lockout The device is held in the off state until VCC reaches 4.5V (typical). There is a 500mV hysteresis on this input, which requires the input to fall below 4.0V (typical) before the device will disable.

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 12 of 18 Semtech Typical Application Schematic Figure 22: TS30011/12/13 Application Schematic A minimal schematic suitable for most applications is shown on page 1. Figure 22 includes optional components that may be considered to address specific issues as listed in the External Component Selection section. PCB Layout For proper operation and minimum EMI, care must be taken during PCB layout. An improper layout can lead to issues such as poor stability and regulation, noise sensitivity and increased EMI radiation. (figure 23) The main guidelines are the following:

  • provide low inductive and resistive paths for loops with high di/dt,
  • provide low capacitive paths with respect to all the other nodes for traces with high di/dt,
  • sensitive nodes not assigned to power transmission should be referenced to the analog signal ground (GND) and be always separated from the power ground (PGND). The negative ends of CBYPASS, COUT and the Schottky diode DCATCH (optional) should be placed close to each other and connected using a wide trace. Vias must be used to connect the PGND node to the ground plane. The PGND node must be placed as close as possible to the TS30011/12/13 PGND pins to avoid additional voltage drop in traces. The bypass capacitor CBYPASS (optionally paralleled to a 0.1µF capacitor) must be placed close to the VCC pins of TS30011/12/13. The inductor must be placed close to the VSW pins and connected directly to COUT in order to minimize the area between the VSW pin, the inductor, the COUT capacitor and the PGND pins. The trace area and length of the switching nodes VSW and BST should be minimized. For the adjustable output voltage version of the TS30011/12/13, feedback resistors RBOT and RTOP are required for Vout settings greater than 0.9V and should be placed close to the TS30011/12/13 in order to keep the traces of the sensitive node FB as short as possible and away from switching signals. RBOT should be connected to the analog ground pin (GND) directly and should never be connected to the ground plane. The analog ground trace (GND) should be connected in only one point to the power ground (PGND). A good connection point is under the TS30011/12/13 package to the exposed thermal pad and vias which are connected to PGND. RTOP will be connected to the VOUT node using a trace that ends close to the actual load. For fixed output voltage versions of the TS30011/12/13, RBOT and RTOP are not required and the FB pin should be connected directly to the Vout. TS30011/12/13 VOUT 2.5V PGND VSW VCC FB GND BST VCC PG PG RTOP 17.8K RBOT 10K RPUP 10K (optional) VOUT ENEN CBYPASS 10uF 35V CBST 22nF LOUT 4.7uH COUT1 22uF 10V COUT2 22uF 10V CBYPASS2 0.1uF (optional)

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 13 of 18 Semtech The exposed thermal pad must be soldered to the PCB for mechanical reliability and to achieve good power dissipation. Vias must be placed under the pad to transfer the heat to the ground plane. Figure 23: TS30011/12/13 PCB Layout, Top View External Component Bill of Materials Designator Function Description Suggested Manufacturer Manufacturer Code Qty CBYPASS Input Supply Bypass Capacitor 10uF 10% 35V TDK CGA5L3X5R1V106K160AB 1 COUT Output Filter Capacitor 22uF 10% 10V TDK C2012X5R1A226K125AB 2 LOUT Output Filter Inductor (1A) 4.7uH 2A TDK Wurth SLF7045T-4R7M2R0-PF 7447745047 1 LOUT Output Filter Inductor (2A) 4.7uH 3A TDK Wurth VLC5045T-4R7M 744774047 1 LOUT Output Filter Inductor (3A) 4.7uH 4.37A TDK Wurth VLP6045LT-4R7M 744777004 1 CBST Boost Capacitor 15 nF-200 nF 10V TDK C1005X7R1C223K 1 Note 1: Assumes 16LD 3x3 QFN with hi-K JEDEC board and 13.5 inch2 of 1 oz Cu and 4 thermal vias connected to PAD

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 14 of 18 Semtech External Component Selection The 1MHz internal switching frequency of the TS30011/12/13 facilitates low cost LC filter combinations. Additionally, the fixed output versions enable a minimum external component count to provide a complete regulation solution with only 4 external components: an input bypass capacitor, an inductor, an output capacitor, and the bootstrap capacitor. The internal compensation is optimized for a 44uF output capacitor and a 4.7uH inductor. For best performance, a low ESR ceramic capacitor should be used for CBYPASS. If CBYPASS is not a low ESR ceramic capacitor, a 0.1uF ceramic capacitor should be added in parallel to CBYPASS. The minimum allowable value for the output capacitor is 33uF. To keep the output ripple low, a low ESR (less than 35mOhm) ceramic is recommended. Multiple capacitors can be paralleled to reduce the ESR. The inductor range is 4.7uH +/-20%. For optimal over-current protection, the inductor should be able to handle up to the regulator current limit without saturation. Otherwise, an inductor with a saturation current rating higher than the maximum IOUT load requirement plus the inductor current ripple should be used. For high current modes, the optional Schottky diode will improve the overall efficiency and reduce the heat. It is up to the user to determine the cost/benefit of adding this additional component in the user’s application. The diode is typically not needed. For the adjustable output version of the TS30011/12/13, the output voltage can be adjusted by sizing RTOP and RBOT feedback resistors. The equation for the output voltage is External Component Bill of Materials continued Designator Function Description Suggested Manufacturer Manufacturer Code Qty RTOP Voltage Feedback Resistor (optional) 17.8K (Note 1) 1 RBOT Voltage Feedback Resistor (optional) 10K (Note 1) 1 RPLP PG Pin Pull-up Resistor (optional) 10K 1 DCATCH Catch Diode (optional, 1A) 30V 2A SOD-123FL On Semiconductor MBR230LSFT1G 1 DCATCH Catch Diode (optional, 2A) 40V 3A SOD-123 NXP Semiconductors PMEG4030ER,115 1 DCATCH Catch Diode (optional, 3A) 40V 5A SOD-123FL NXP Semiconductors PMEG4050EP ,1 1 Note 1: The voltage divider resistor values are calculated for an output voltage of 2.5V. For fixed output versions, the FB pin is connected directly to VOUT. For the adjustable version, the ratio of VCC/Vout cannot exceed 16. RPUP is only required when the Power Good signal (PG) is utilized. Thermal Information TS30011/12/13 is designed for a maximum operating junction temperature Tj of 125°C. The maximum output power is limited by the power losses that can be dissipated over the thermal resistance given by the package and the PCB structures. The PCB must provide heat sinking to keep the TS30011/12/13 cool. The exposed metal on the bottom of the QFN package must be soldered to a ground plane. This ground should be tied to other copper layers below with thermal vias. Adding more copper to the top and the bottom layers and tying this copper to the internal planes with vias can reduce thermal resistance further. For a hi-K JEDEC

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 15 of 18 Semtech board and 13.5 square inch of 1 oz Cu, the thermal resistance from junction to ambient can be reduced to θJA = 38°C/W. The power dissipation of other power components (catch diode, inductor) cause additional copper heating and can further increase what the TS30011/12/13 sees as ambient temperature. Package Mechanical Drawings (all dimentions in mm) Units Millimeters Dimensions Limits MIN NOM MAX Number of Pins N 16 Pitch e 0.50 BSC Overall Height A 0.80 0.90 1.00 Standoff A1 0.00 0.02 0.05 Contact Thickness A3 0.20 REF Overall Length D 3.00 BSC Exposed Pad Width E2 1.55 1.70 1.80 Overall Width E 3.00 BSC Exposed Pad Length D2 1.55 1.70 1.80 Contact Width b 0.20 0.25 0.30 Contact Length L 0.20 0.30 0.40 Contact-to-Exposed Pad K 0.20 - -

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 16 of 18 Semtech Recommended PCB Land Pattern Units Millimeters Dimensions Limits MIN NOM MAX Contact Pitch E 0.50 BSC Optional Center Pad Width W2 - - 1.70 Optional Center Pad Length T2 - - 1.70 Contact Pad Spacing C1 - 3.00 - Contact Pad Spacing C2 - 3.00 - Contact Pad Width (X16) X1 - - 0.35 Contact Pad Length (X16) Y1 - - 0.65 Distance Between Pads G 0.15 - - Notes: Dimensions and tolerances per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact values shown without tolerances. REF: Reference Dimension, usually without tolerance, for information only. Packaging Information Pb-Free (RoHS): The TS30011/12/13 devices are fully compliant for all materials covered by European Union Directive 2011/65/EU (RoHS 2), and meet all IPC-1752 Class 5 & 6 materials declaration requirements. These devices are Pb Free, WEEE, and low Halogen. MSL, Peak Temp: The TS30011/12/13 family has a Moisture Sensitivity Level (MSL) 1 rating per JEDEC J-STD-020D. These devices also have a Peak Profile Solder Temperature (Tp) of 260°C. Dimensions in Millimeters

Final Datasheet Rev 1.7 August 24, 2015 www.semtech.com 17 of 18 Semtech

Ordering Information

015 1.5 V 018 1.8 V 025 2.5 V 033 3.3 V 050 5.0 V

000 Adjustable

Final Datasheet Rev 1.7 August 24, 2015 18 of 18 Semtech Contact Information Semtech Corporation

200 Flynn Road, Camarillo, CA 93012

Phone: (805) 498-2111, Fax: (805) 498-3804 www.semtech.com IMPORTANT NOTICE Information relating to this product and the application or design described herein is believed to be reliable, however such information is provided as a guide only and Semtech assumes no liability for any errors in this document, or for the application or design described herein. Semtech reserves the right to make changes to the product or this document at any time without notice. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. Semtech warrants performance of its products to the specifications applicable at the time of sale, and all sales are made in accordance with Semtech’s standard terms and conditions of sale. SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS, OR IN NUCLEAR APPLICATIONS IN WHICH THE FAILURE COULD BE REASONABLY EXPECTED TO RESUL T IN PERSONAL INJURY , LOSS OF LIFE OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. INCLUSION OF SEMTECH PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE UNDERTAKEN SOLELY AT THE CUSTOMER’S OWN RISK. Should a customer purchase or use Semtech products for any such unauthorized application, the customer shall indemnify and hold Semtech and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs damages and attorney fees which could arise. The Semtech name and logo are registered trademarks of the Semtech Corporation. All other trademarks and trade names mentioned may be marks and names of Semtech or their respective companies. Semtech reserves the right to make changes to, or discontinue any products described in this document without further notice. Semtech makes no warranty, representation or guarantee, express or implied, regarding the suitability of its products for any particular purpose. All rights reserved. © Semtech 2015