XR79115 22V, 15A Synchronous Step Down COT Power Module FEATURES General Description The XR79115 is a 15A synchronous step-down Power Module for point-of load supplies. A wide 5V to 22V input voltage range allows for single supply operation from industry standard 5V, 12V, and 19.6V rails. With a proprietary emulated current mode Constant On-Time (COT) control scheme, the XR79115 provides extremely fast line and load transient response using ceramic output capacitors. It requires no loop compensation hence simplifying circuit implementation and reducing overall component count. The control loop also provides 0.35% load and 0.1% line regulation and maintains constant operating frequency. A selectable power saving mode allows the user to operate in discontinuous mode (DCM) at light current loads thereby significantly increasing the converter efficiency. With a 96% peak efficiency and 90% for loads as low as 100mA, the XR79115 is suitable for applications where low power losses are important. A host of protection features, including over-current, over-temperature, short-circuit and UVLO, help achieve safe operation under abnormal operating conditions. The XR79115 is available in a RoHS compliant, green / halogen free space-saving 68-pin 12x12x4mm QFN package. With integrated controller, drivers, bootstrap diode and capacitor, MOSFETs, inductor, CIN and COUT, this solution allows the smallest possible 15A POL design. Controller, drivers, bootstrap diode and capacitor, MOSFETs, Inductor, CIN and COUT integrated in one package 15A Step Down Module Wide 5V to 22V Input Voltage Range 0.6V Adjustable Output Voltage Proprietary Constant On-Time Control No Loop Compensation Required Stable Ceramic Output Capacitor Operation Programmable 200ns to 2s On-Time Constant 400kHz to 600kHz Frequency Selectable CCM or CCM/DCM CCM/DCM for high efficiency at light-load CCM for constant frequency at light-load Programmable Hiccup Current Limit with Thermal Compensation Precision Enable and Power Good flag Programmable Soft-start 68-pin 12x12x4mm QFN package APPLICATIONS Networking and Communications Fast Transient Point-of-Loads Industrial and Medical Equipment Embedded High Power FPGA Ordering Information - back page Typical Application Line Regulation 1.220 VIN VIN 1.215 EN/MODE Power Good PGOOD CIN VCC R3 VOUT XR79115 SW RLIM SS CSS R1 ILIM TON CVCC COUT 1.205 1.200 1.195 1.190 FB RON R2 AGND 1.210 VOUT VOUT (V) Enable/Mode PVIN 1.185 PGND 1.180 4 6 8 10 12 14 16 18 20 22 VIN (V) 1 / 18 exar.com/XR79115 Rev 1C XR79115 Absolute Maximum Ratings Operating Conditions Stresses beyond the limits listed below may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. PVIN...............................................................................3V to 22V VCC............................................................................4.5V to 5.5V PVIN, VIN...................................................................-0.3V to 25V SW, ILIM.....................................................................-1V to 22V1 VCC...........................................................................-0.3V to 6.0V PGOOD, VCC, TON, SS, EN, FB...............................-0.3V to 5.5V 1 BST..........................................................................-0.3V to 31V Switching Frequency......................................400kHz to 600kHz3 BST-SW.......................................................................-0.3V to 6V Junction Temperature Range..............................-40C to +125C SW, ILIM...................................................................-1V to 25V1, 2 JEDEC51 Package Thermal Resistance, JA................15.4C/W ALL other pins.................................................-0.3V to VCC+0.3V Package Power Dissipation at 25C.......................................6.5W VIN..............................................................................4.5V to 22V Storage Temperature...........................................-65C to +150C Junction Temperature..........................................................150C Note 1: No external voltage applied. Power Dissipation...............................................Internally Limited Note 2: SW pin's minimum DC range is -1V, transient is -5V for less than 50ns. Lead Temperature (Soldering, 10 sec)......................260C MSL3 Note 3: Recommended frequency for optimum performance ESD Rating (HBM - Human Body Model)...............................2kV Electrical Characteristics Unless otherwise noted: TJ= 25C, VIN=12V, BST=VCC, SW=AGND=PGND=0V, CVCC=4.7uF. Limits applying over the full operating temperature range are denoted by a "*" Symbol Parameter Conditions Min Typ Max Units Power Supply Characteristics VIN VCC regulating 5 22 VCC tied to VIN 4.5 5.5 V Input Voltage Range IVIN VIN Input Supply Current Not switching, VIN = 12V, VFB = 0.7V 0.7 2 mA IVCC VCC Quiescent Current Not switching, VCC=VIN = 5V, VFB = 0.7V 0.7 2 mA IVIN VIN Input Supply Current f=500kHz, RON=61.9k, VFB=0.58V 17 mA IOFF Shutdown Current Enable = 0V, VIN = 12V 1 A Enable and Under-Voltage Lock-Out UVLO VIH_EN EN Pin Rising Threshold VEN_HYS EN Pin Hysteresis VIH_EN EN Pin Rising Threshold for DCM/ CCM operation VEN_HYS EN Pin Hysteresis 1.8 1.9 2.0 50 2.8 3.0 100 2 / 18 V mV 3.1 V mV exar.com/XR79115 Rev 1C XR79115 Symbol Parameter Conditions VCC UVLO Start Threshold, Rising Edge Min Typ Max Units 4.00 4.25 4.40 V VCC UVLO Hysteresis 200 mV Reference Voltage VREF VIN = 5V to 22V, VCC regulating 0.597 0.600 0.603 V VIN = 4.5V to 5.5V, VCC tied to VIN 0.596 0.600 0.604 V 0.594 0.600 0.606 V Reference Voltage VIN = 5V to 22V, VCC regulating VIN = 4.5V to 5.5V, VCC tied to VIN DC Line Regulation CCM, closed loop, VIN=4.5V-22V, applies to any COUT 0.10 % DC Load Regulation CCM, closed loop, IOUT=0A-15A, applies to any COUT 0.35 % 120 ns Programmable Constant On-Time TON(MIN) Minimum Programmable On-Time RON = 6.98k, VIN = 22V TON2 On-Time 2 RON = 6.98k, VIN = 12V f Corresponding to On-Time 2 VOUT = 1.0V On-Time 3 RON = 16.2k, VIN = 12V TON3 156 192 228 ns 450 535 660 kHz 341 412 483 ns 250 350 ns Minimum Off-Time Diode Emulation Mode Zero Crossing Threshold DC value measured during test -2 mV Soft-start -14 Fault present 1 VIN = 6V to 22V, ILOAD = 0 to 30mA 4.8 5.0 VIN = 5V, ILOAD = 0 to 20mA 4.6 4.8 -10 -7.5 -5 % 2 4 % SS Charge Current SS Discharge Current -10 -6 A mA VCC Linear Regulator 5.2 V VCC Output Voltage V Power Good Output Power Good Threshold Power Good Hysteresis Power Good Sink Current 1 mA Protection: OCP, OTP, Short-Circuit Hiccup Timeout 110 ILIM Pin Source Current 45 ILIM Current Temperature Coefficient 50 ms 55 0.4 OCP Comparator Offset 3 / 18 -8 0 A %/C +8 mV exar.com/XR79115 Rev 1C XR79115 Symbol Parameter Conditions Min Typ Max Units Current Limit Blanking GL rising>1V 100 ns Thermal Shutdown Threshold1 Rising temperature 150 C 15 C Thermal Hysteresis1 VSCTH Feedback Pin Short-Circuit Threshold Percent of VREF, short circuit is active after PGOOD is asserted 50 60 70 % 8.3 10 m 4.2 5 m Output Power Stage High-Side MOSFET RDSON IDS = 2A, VGS=4.5V RDSON Low-Side MOSFET RDSON IOUT Maximum Output Current L Output Inductance CIN Input Capacitance COUT CBST 15 0.45 A 0.56 0.67 uH 1 uF Output Capacitance 2.2 uF Bootstrap Capacitance 0.1 uF Note 1: Guaranteed by design 4 / 18 exar.com/XR79115 Rev 1C XR79115 Pin Configuration, Top View 5 / 18 exar.com/XR79115 Rev 1C XR79115 Pin Assignments Pin No. Pin Name Type Description A Soft-start pin. Connect an external capacitor between SS and AGND to program the soft-start rate based on the 10uA internal source current. OD, O Power-good output. This open-drain output is pulled low when VOUT is outside the regulation. 1 SS 2 PGOOD 3 FB A Feedback input to feedback comparator. Connect with a set of resistors to VOUT and AGND in order to program VOUT. AGND A Analog ground. Control circuitry of the IC is referenced to this pin. 4, 67, AGND Pad 5 VIN PWR IC supply input. Provides power to internal LDO. 6 VCC PWR The output of LDO. Bypass with a 4.7uF capacitor to AGND. For operation from a 5VIN rail, VCC should be tied to VIN. O Driver output for Low-side N-channel synchronous MOSFET. It is internally connected to the gate of the FET. Leave this pin floating. 7, GL pad GL 8 PGND PWR Controller low-side driver ground. Connect with a short trace to closest PGND pins or PGND pad. 13-23, 54, 55, PGND pads PGND PWR Ground of the power stage. Should be connected to the system's power ground plane. 9-12, 24-29, SW Pad SW PWR Switching node. It is internally connected. Use thermal vias and/or sufficient PCB land area in order to heatsink the low-side FET and the inductor. 30-53, VOUT pads VOUT PWR Output of the power stage. Place the output filter capacitors as close as possible to these pins. 56-62, PVIN Pad PVIN PWR Power stage input voltage. Place the input filter capacitors as close as possible to these pins. 63, 64, BST Pad BST A Controller high-side driver supply pin. It is internally connected to SW via a 0.1uF bootstrap capacitor. Leave these pins floating. 65 ILIM A Over-current protection programming. Connect with a short trace to SW pins. 66 EN/MODE I Precision enable pin. Pulling this pin above 1.9V will turn the IC on and it will operate in Forced CCM. If the voltage is raised above 3.0V, then the IC will operate in DCM or CCM depending on load. 68 TON A Constant on-time programming pin. Connect with a resistor to AGND. Type: A = Analog, I = Input, O = Output, I/O = Input/Output, PWR = Power, OD = Open-Drain 6 / 18 exar.com/XR79115 Rev 1C XR79115 Functional Block Diagram VCC TON VCC UVLO Enable LDO VIN 4.25 V LDO BST Switching Enabled + CIN 1uF - VCC VCC OTP TJ 150 C PGOOD FB 0.6V - PGND ESR emulation & DC correction 10uA SS + VIN On-Time + CBST 0.1uF - Switching Enabled 0.6 V Feedback comparator - R Q S Q L PGOOD comparator + + - + 1.9 V Q S Q Enable Hiccup PGND Hiccup Mode If four consecutive OCP + - If 8 consecutive ZCD Then DCM If 1 non-ZCD Then exit DCM OCP comparator 50uA + - GL Zero Cross Detect SW COUT 2.2uF Enable LDO - CCM or CCM/DCM 3V VOUT GL R Enable LDO EN/ MODE VCC Switching Enabled Short-circuit detection 0.36 V Dead Time Control Minimum On Time - SW GH TON + FB 0.555 V PVIN + -2 mV - AGND 7 / 18 ILIM PGND GL exar.com/XR79115 Rev 1C XR79115 Typical Performance Characteristics 1.220 1.220 1.215 1.215 1.210 1.210 1.205 1.205 VOUT (V) VOUT (V) Unless otherwise noted: VIN = 12V, VOUT=1.2V, IOUT=15A, f=500kHz, TA = 25C. Schematic from the application information section. 1.200 1.195 1.200 1.195 1.190 1.190 1.185 1.185 1.180 1.180 0 2 4 6 8 4 10 12 14 16 6 8 10 12 14 16 18 20 22 VIN (V) IOUT (A) Figure 2: Line regulation Figure 1: Load Regulation 500 500 Calculated Calculated Typical Typical 400 TON (ns) TON (ns) 400 300 300 200 200 100 100 0 5 10 15 4 20 6 Figure 3: TON versus RON 10 12 14 16 18 20 22 Figure 4: TON versus VIN, RON=6.98k 600 600 500 500 400 400 f (kHz) f (kHz) 8 VIN (V) RON (k) 300 300 200 200 100 100 0 0 0 5 10 IOUT (A) 4 15 6 8 10 12 14 16 18 20 22 VIN (V) Figure 6: frequency versus VIN Figure 5: frequency versus IOUT 8 / 18 exar.com/XR79115 Rev 1C XR79115 Typical Performance Characteristics Unless otherwise noted: VIN = 12V, VOUT=1.2V, IOUT=15A, f=500kHz, TA = 25C. Schematic from the application information section. 30 610 25 VREF (mV) IOCP (A) 605 20 15 10 600 595 5 0 1.50 590 1.75 2.00 2.25 -40 -20 0 2.50 20 40 60 80 100 120 TJ (C) RLIM (k) Figure 8: VREF versus temperature Figure 7: IOCP versus RLIM 450 70 440 430 420 TON (ns) ILIM (uA) 60 50 410 400 390 380 40 370 360 30 350 -40 -20 0 20 40 60 80 100 120 -40 -20 0 TJ (C) TJ (C) Figure 9: ILIM versus temperature Figure 10: TON versus temperature, RON=16.2k 0.80 3.5 0.70 3.0 0.60 2.5 0.50 VOUT (V) Inductance (uH) 20 40 60 80 100 120 0.40 2.0 1.5 0.30 1.0 0.20 0.5 0.10 0.0 0.00 0 5 10 15 20 25 30 400 35 500 600 frequency (kHz) Current (A) Figure 12: Maximum recommended VOUT versus f, VIN=12V Figure 11: Inductance versus Current 9 / 18 exar.com/XR79115 Rev 1C XR79115 Typical Performance Characteristics Unless otherwise noted: VIN = 12V, VOUT=1.2V, IOUT=15A, f=500kHz, TA = 25C. Schematic from the application information section. Figure 13: Steady state, CCM, IOUT=15A Figure 14: Steady state, DCM, IOUT=0A Figure 15: Power up, Forced CCM Figure 16: Power up, DCM/CCM Figure 17: Load step, Forced CCM, 0A-7.5A-0A Figure 18: Load step, DCM/CCM, 0A-7.5A-0A 10 / 18 exar.com/XR79115 Rev 1C XR79115 Efficiency and Package Thermal Derating 100 98 96 94 92 90 88 86 84 82 80 78 76 74 72 70 130 120 110 100 0.1 3.3V DCM 3.3V CCM 2.5V DCM 2.5V CCM 1.8V DCM 1.8V CCM 1.5V DCM 1.5V CCM 1.2V DCM 1.2V CCM 1.0V DCM 1.0V CCM 1.0 TAMBIENT(C) Efficiency % Unless otherwise noted: TAMBIENT = 25C, No Air flow, f=500kHz, Schematic from the application information section. 90 1.0 VOUT 80 1.8 VOUT 70 60 50 40 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 10.0 IOUT (A) IOUT (A) Figure 20: Maximum TAMBIENT vs IOUT, VIN=5V 130 100 98 96 94 92 90 88 86 84 82 80 78 76 74 72 70 3.3V DCM 2.5V DCM 1.8V DCM 1.5V DCM 1.2V DCM 1.0V DCM 3.3V CCM 2.5V CCM 1.8V CCM 1.5V CCM 1.2V CCM 1.0V CCM 120 600kHz 110 100 TAMBIENT(C) Efficiency % Figure 19: Efficiency, VIN=5V 90 80 1.0 VOUT 70 1.8 VOUT 3.3 VOUT 60 50 40 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0.1 1.0 10.0 IOUT (A) IOUT (A) Figure 21: Efficiency, VIN=12V Figure 22: Maximum TAMBIENT vs IOUT, VIN=12V 130 90 88 86 84 82 80 78 76 74 72 70 68 66 64 62 60 1.8V DCM 1.8V CCM 1.2V DCM 1.2V CCM 120 110 100 TAMBIENT(C) Efficiency % 3.3 VOUT 90 80 1.2 VOUT 70 1.8 VOUT 60 50 40 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0.1 1.0 10.0 IOUT (A) IOUT (A) Figure 24: Maximum TAMBIENT vs IOUT, VIN=19.6V Figure 23: Efficiency, VIN=19.6V 11 / 18 exar.com/XR79115 Rev 1C XR79115 Functional Description XR79115 is a synchronous step-down proprietary emulated current-mode Constant On-Time (COT) Module. The ontime, which is programmed via RON, is inversely proportional to VIN and maintains a nearly constant frequency. The emulated current-mode control is stable with ceramic output capacitors. derived from VIN. If VIN is well regulated, use a resistor divider and set the voltage to 4V. If VIN varies over a wide range, the circuit shown in figure 26 can be used to generate the required voltage. Each switching cycle begins with GH signal turning on the high-side (switching) FET for a preprogrammed time. At the end of the on-time, the high-side FET is turned off and the low-side (synchronous) FET is turned on for a preset minimum time (250ns nominal). This parameter is termed Minimum Off-Time. After the minimum off-time, the voltage at the feedback pin FB is compared to an internal voltage ramp at the feedback comparator. When VFB drops below the ramp voltage, the high-side FET is turned on and the cycle repeats. This voltage ramp constitutes an emulated current ramp and makes possible the use of ceramic capacitors, in addition to other capacitor types, for output filtering. V IN RZ 10k R1 30.1k, 1% Zener MMSZ4685T1G or Equivalent EN/MODE R2 35.7k, 1% Enable/Mode Input (EN/MODE) EN/MODE pin accepts a tri-level signal that is used to control turn on/off. It also selects between two modes of operation: `Forced CCM' and `DCM/CCM'. If EN is pulled below 1.8V, the Module shuts down. A voltage between 2.0V and 2.8V selects the Forced CCM mode which will run the Module in continuous conduction at all times. A voltage higher than 3.1V selects the DCM/CCM mode which will run the Module in discontinuous conduction at light loads. Figure 25: Selecting Forced CCM by deriving EN/MODE from VIN Selecting the Forced CCM Mode In order to set the Module to operate in Forced CCM, a voltage between 2.0V and 2.8V must be applied to EN/ MODE. This can be achieved with an external control signal that meets the above voltage requirement. Where an external control is not available, the EN/MODE can be derived from VIN. If VIN is well regulated, use a resistor divider and set the voltage to 2.5V. If VIN varies over a wide range, the circuit shown in figure 25 can be used to generate the required voltage. Note that at VIN of 5V and 22V the nominal Zever voltage is 3.8V and 4.7V respectively. Therefore for VIN in the range of 5V to 22V, the circuit shown in figure 25 will generate VEN required for Forced CCM. V IN RZ 10k V EN EN/MODE Zener MMSZ4685T1G or Equivalent Selecting the DCM/CCM Mode In order to set the Module operation to DCM/CCM, a voltage between 3.1V and 5.5V must be applied to EN/ MODE pin. If an external control signal is available, it can be directly connected to EN/MODE. In applications where an external control is not available, EN/MODE input can be 12 / 18 Figure 26: Selecting DCM/CCM by deriving EN/MODE from VIN exar.com/XR79115 Rev 1C XR79115 Programming the On-Time IOCP is the over-current threshold to be programmed The On-Time TON is programmed via resistor RON according to following equation: RDS is the MOSFET rated On Resistance (5m) 8mV is the OCP comparator maximum offset ILIM is the internal current that generates the necessary OCP comparator threshold (use 45A). -9 R ON V IN T ON - 25 10 = ----------------------------------------------------------- 10 2.85 10 Note that ILIM has a positive temperature coefficient of 0.4%/C (figure 9). This is meant to roughly match and compensate for positive temperature coefficient of the synchronous FET. Graph of typical IOCP versus RLIM is shown in figure 7. where TON is calculated from: V OUT T ON = -----------------------------V IN f Eff Short-Circuit Protection (SCP) where: If the output voltage drops below 60% of its programmed value, the Module will enter hiccup mode. Hiccup will persist until short-circuit is removed. SCP circuit becomes active after PGOOD asserts high. f is the desired switching frequency at nominal IOUT Over-Temperature (OTP) Eff is the Module efficiency corresponding to nominal IOUT shown in figures 19, 21, 23 Substituting for TON in the first equation we get: OTP triggers at a nominal die temperature of 150C. The gate of switching FET and synchronous FET are turned off. When die temperature cools down to 135C, soft-start is initiated and operation resumes. Programming the Output Voltage V OUT- -9 -------------- f Eff - 25 10 V IN R ON = ------------------------------------------------------------------------- 10 2.85 10 Use an external voltage divider as shown in the Application Circuit to program the output voltage VOUT. V OUT R1 = R2 ------------- 1 0.6 Over-Current Protection (OCP) If load current exceeds the programmed over-current, IOCP, for four consecutive switching cycles, then Module enters hiccup mode of operation. In hiccup, the MOSFET gates are turned off for 110ms (hiccup timeout). Following the hiccup timeout, a soft-start is attempted. If OCP persists, hiccup timeout will repeat. The Module will remain in hiccup mode until load current is reduced below the programmed IOCP . In order to program the over-current protection, use the following equation: where R2 has a nominal value of 2k. Programming the Soft-start Place a capacitor CSS between the SS and AGND pins to program the soft-start. In order to program a soft-start time of TSS, calculate the required capacitance CSS from the following equation: 10A CSS = TSS -------------- 0.6V I OCP RDS + 8mVRLIM = ----------------------------------------------------ILIM Where: RLIM is resistor value for programming IOCP 13 / 18 exar.com/XR79115 Rev 1C XR79115 Feed-Forward Capacitor (CFF) A feed-forward capacitor (CFF) may be necessary depending on the Equivalent Series Resistance (ESR) of COUT. If only ceramic output capacitors are used for COUT then a CFF is necessary. Calculate CFF from: 1 C FF = --------------------------------------------------2 80 kHz R1 where: R1 is the resistor that CFF is placed in parallel with 80kHz is the location of the Zero formed by R1 and CFF Note that minimum required COUT is 140uF when using ceramic capacitors. When using capacitors with higher ESR, such as PANASONIC TPE series, a CFF is not required provided following conditions are met: 1. The frequency of output filter LC double-pole fLC should be less than 15kHz. 2. The frequency of ESR Zero fZero,ESR should be at least three times larger than fLC. As an example the application circuit has fLC=8.3kHz and fZero,ESR=23.4kHz. Note that the steady-state voltage ripple at feedback pin FB (VFB,RIPPLE) must not exceed 50mV in order for Module to function correctly. If VFB,RIPPLE is larger than 50mV then COUT should be increased as necessary in order to keep the VFB,RIPPLE below 50mV. Feed-Forward Resistor (RFF) Poor PCB layout can cause FET switching noise at the output and may couple to the FB pin via CFF. Excessive noise at FB will cause poor load regulation. To solve this problem place a resistor RFF in series with CFF. RFF value up to 2% of R1 is acceptable. 14 / 18 exar.com/XR79115 Rev 1C XR79115 Application Circuit R4 10k 4 PVIN 5 VCC CVIN 0.1uF 6 CVCC 4.7uF 7 8 62 61 60 59 58 57 56 PVIN PVIN PVIN PVIN PVIN PVIN PVIN BST PAD 64 63 BST BST 66 67 65 ILIM TON FB AGND VIN VCC U1 GL XR79115 PGND GL PAD SW PAD CSNB 1nF VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 680uF 3x47uF R1 2k FB R2 2k PGND PGND PGND PGND PGND PGND PGND PGND PGND PGND PGND PGND PGND VOUT PAD 2 VOUT PAD 1 13 14 15 16 17 18 19 20 21 22 23 54 55 RSNB 1 Ohm SW SW SW SW SW SW SW SW SW SW PGND PAD 1 PGND PAD 2 OPTIONAL 9 10 11 12 24 25 26 27 28 29 500kHz, 15A@1.2VOUT PVIN PAD PGOOD EN/MODE 3 AGND FB 2x22uF RLIM 2.49k 68 2 SS AGND PAD 1 R5 10k VCC PVIN SW RON 8.87k CSS 47nF 12VIN R3 38.3k 15 / 18 exar.com/XR79115 Rev 1C XR79115 Mechanical Dimensions BOTTOM VIEW TOP VIEW DETAIL A SIDE VIEW TERMINAL AND PAD EDGE DETAILS Drawing No.: POD-00000075 TERMINAL DETAILS Revision: B 16 / 18 exar.com/XR79115 Rev 1C XR79115 TYPICAL RECOMMENDED LAND PATTERN TYPICAL RECOMMENDED STENCIL Drawing No.: POD-00000075 Revision: B 17 / 18 exar.com/XR79115 Rev 1C XR79115 Ordering Information(1) Part Number Operating Temperature Range Lead-Free Package Packaging Method -40C to +125C Yes(2) 12x12mm QFN Tray XR79115EL-F XR79115EVB XR79115 Evaluation Board NOTE: 1. Refer to www.exar.com/XR79115 for most up-to-date Ordering Information. 2. Visit www.exar.com for additional information on Environmental Rating. Revision History Revision Date 1A December 2014 1B January 2015 1C June 2018 Description ECN 1451-09 Corrected schematic on page 1, ECN 1504-06 Update to MaxLinear logo. Update format and Ordering Information format. Corporate Headquarters: High Performance Analog: 5966 La Place Court 1060 Rincon Circle Suite 100 San Jose, CA 95131 Carlsbad, CA 92008 Tel.: +1 (669) 265-6100 Tel.:+1 (760) 692-0711 Fax: +1 (669) 265-6101 www.exar.com Fax: +1 (760) 444-8598 www.maxlinear.com The content of this document is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by MaxLinear, Inc.. MaxLinear, Inc. assumes no responsibility or liability for any errors or inaccuracies that may appear in the informational content contained in this guide. Complying with all applicable copyright laws is the responsibility of the user. Without limiting the rights under copyright, no part of this document may be reproduced into, stored in, or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written permission of MaxLinear, Inc. Maxlinear, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless MaxLinear, Inc. receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; (c) potential liability of MaxLinear, Inc. is adequately protected under the circumstances. MaxLinear, Inc. may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written license agreement from MaxLinear, Inc., the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property. Company and product names may be registered trademarks or trademarks of the respective owners with which they are associated. (c) 2014 - 2018 MaxLinear, Inc. All rights reserved 18 / 18 exar.com/XR79115 Rev 1C