FSL306LRN

Is Now Part of To learn more about ON Semiconductor, please visit our website at www.onsemi.com Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers will need to change in order to meet ON Semiconductor’s system requirements. Since the ON Semiconductor product management systems do not have the ability to manage part nomenclature that utilizes an underscore (_), the underscore (_) in the Fairchild part numbers will be changed to a dash (-). This document may contain device numbers with an underscore (_). Please check the ON Semiconductor website to verify the updated device numbers. The most current and up-to-date ordering information can be found at www.onsemi.com. Please email any questions regarding the system integration to Fairchild_questions@onsemi.com. ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. FSL306LR Green Mode Buck Switch Features Description    Built-in Avalanche Rugged SenseFET: 650 V         No Need for Auxiliary Bias Winding The FSL306LR integrate Pulse Width Modulator (PWM) and SenseFET is specifically designed for highperformance offline buck, buck-boost, and non-isolation flyback Switched Mode Power Supplies (SMPS) with minimal external components. This device integrates a high-voltage power regulator that enables operation without auxiliary bias winding. An internal transconductance amplifier reduces external components for the feedback compensation circuit.  Fixed 650 ms Restart Time for Safe Auto-Restart Mode of All Protections Fixed Operating Frequency: 50 kHz No-Load Power Consumption: < 25 mW at 230 VAC with External Bias; 3 V Restart Time After Protection(10) V 60 °C 40 ms 650 ms Transconductance Amplifier Section Transconductance of Error Amplifier 190 240 290 µmho VREF Gm Voltage Feedback Reference 2.45 2.50 2.55 V IEA.SR Output Sourcing Current VFB = VREF - 0.05 V -12 µA IEA.SK Output Sink Current VFB = VREF + 0.05 V 12 µA Continued on the following page… © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 5 www.fairchildsemi.com www.onsemi.com FSL306LR — Green Mode Buck Switch Electrical Characteristics TA = 25C unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit High-Voltage Regulator Section VHVREG HV Regulator Voltage VCOMP = 0 V, VDRAIN = 40 V 9 10 11 V Total Device Section IOP1 Operating Supply Current (Control Part Only, without Switching) 0 V < VCOMP < VBURL 0.25 0.35 mA IOP2 Operating Supply Current (While Switching) VBURL < VCOMP < VOLP 0.8 1.3 mA ICH Startup Charging Current VCC = 0 V, VDRAIN > 40 V ISTART Startup Current VCC = Before VSTART, VCOMP = 0 V 120 6 VDRAIN Minimum Drain Supply Voltage VCC = VCOMP = 0 V, VDRAIN Increase 35 mA 155 µA V Notes: 10. Though guaranteed by design, they are not 100% tested in production. © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 6 www.fairchildsemi.com www.onsemi.com FSL306LR — Green Mode Buck Switch Electrical Characteristics HV Regulator Voltage (VHVREG) 1.15 1.10 1.10 1.05 1.05 Normalized Normalized Switching Frequency (fOSC) 1.15 1.00 0.95 0.90 1.00 0.95 0.90 0.85 0.85 -40 -20 0 25 50 75 100 125 -40 -20 Temperature (℃) 25 50 75 100 125 Temperature (℃) Figure 5. Operating Frequency vs. Temperature Figure 6. HV Regulator Voltage vs. Temperature Start Threshold Voltage (VSTART) Stop Threshold Voltage (VSTOP) 1.15 1.15 1.10 1.10 1.05 1.05 Normalized Normalized 0 1.00 0.95 0.90 1.00 0.95 0.90 0.85 0.85 -40 -20 0 25 50 75 100 125 -40 -20 Temperature (℃) 0 25 50 75 100 125 Temperature (℃) Figure 8. Stop Threshold Voltage vs. Temperature Burst Mode High Voltage (VBURH) Burst Mode Low Voltage (VBURL) 1.15 1.15 1.10 1.10 1.05 1.05 Normalized Normalized Figure 7. Start Threshold Voltage vs. Temperature 1.00 0.95 0.90 1.00 0.95 0.90 0.85 0.85 -40 -20 0 25 50 75 100 125 -40 Temperature (℃) 0 25 50 75 100 125 Temperature (℃) Figure 9. Burst Mode High Voltage vs. Temperature © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 -20 Figure 10. Burst Mode Low Voltage vs. Temperature 7 www.fairchildsemi.com www.onsemi.com FSL306LR — Green Mode Buck Switch Typical Performance Characteristics Feedback Voltage Reference (VREF) 1.15 1.10 1.10 1.05 1.05 Normalized Normalized Operating Supply Current (IOP1) 1.15 1.00 0.95 1.00 0.95 0.90 0.90 0.85 0.85 -40 -20 0 25 50 75 100 -40 125 -20 0 Figure 11. Operating Supply Current 1 vs. Temperature 75 100 125 Figure 12. Feedback Voltage Reference vs. Temperature Transconductance of gm amp (Gm) FB Open Loop Protection (VFB_OLP) 1.15 1.15 1.10 1.10 1.05 1.05 Normalized Normalized 50 Temperature (℃) Temperature (℃) 1.00 0.95 0.90 1.00 0.95 0.90 0.85 0.85 -40 -20 0 25 50 75 100 125 -40 -20 0 Temperature (℃) 25 50 75 100 125 Temperature (℃) Figure 13. Transconductance of gm Amplifier vs. Temperature Figure 14. FB Open Loop Protection Voltage vs. Temperature Overload Protection (VOLP) Over-Voltage Protection (VOVP) 1.15 1.15 1.10 1.10 1.05 1.05 Normalized Normalized 25 1.00 0.95 1.00 0.95 0.90 0.90 0.85 0.85 -40 -20 0 25 50 75 100 -40 125 0 25 50 75 100 125 Temperature (℃) Temperature (℃) Figure 15. Overload Protection vs. Temperature © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 -20 Figure 16. Over-Voltage Protection vs. Temperature 8 www.fairchildsemi.com www.onsemi.com FSL306LR — Green Mode Buck Switch Typical Performance Characteristics (Continued) 1. Startup and High-Voltage Regulator 3. Feedback Control During startup, an internal high-voltage current source (ICH) of the high-voltage regulator supplies the internal bias current (ISTART) and charges the external capacitor (CA) connected to the VCC pin, as illustrated in Figure 17. This internal high-voltage current source is enabled until VCC reaches 10 V. During steady-state operation, this internal high-voltage regulator (HVREG) maintains the VCC with 10 V and provides operating current (IOP) for all internal circuits. Therefore, FSL306LR needs no external bias circuit. The high-voltage regulator is disabled when the external bias is higher than 10 V. employs current-mode control with a transconductance amplifier for feedback control, as shown in Figure 19. Two resistors are typically used on the VFB pin to sense output voltage. An external compensation circuit is recommended on the VCOMP pin to control output voltage. A built-in transconductance amplifier accurately controls output voltage without external components, such as Zener diode and transistor. Drain VOUT VBIAS Transconductance Amplifier VFB VDC.link Greenmode Controller IPK 3R 4 VREF Drain 6,7 OSC D1 D2 PWM LEB R Gate driver 6,7 VCC VCOMP ICH CC1 CC2 ISTART (during start-up) Iop (during steady-state operation) CA VBIAS RSENSE 5 10V HVREG 3 RC1 Figure 19. Pulse Width Modulation (PWM) Circuit UVLO 3.1 Transconductance Amplifier (gm Amplifier) The output of the transconductance amplifier sources and sinks the current, respectively, to and from the compensation circuit connected on the VCOMP pin (see Figure 20). This compensated VCOMP pin voltage controls the switching duty cycle by comparing with the voltage across the RSENSE. When the feedback pin voltage exceeds the internal reference voltage (V REF) of 2.5 V; the transconductance amplifier sinks the current from the compensation circuit, VCOMP is pulled down, and the duty cycle is reduced. This typically occurs when input voltage is increased or output load is decreased. A two-pole and one-zero compensation network is recommended for optimal output voltage control and AC dynamics. Typically 220 nF, 220 kΩ, and 330 pF are used for CC1, RC1, and CC2, respectively. Figure 17. Startup and HVREG Block 2. Oscillator Block The oscillator frequency is set internally and the FSL306LR have random frequency fluctuation functions. Fluctuation of the switching frequency can reduce EMI by spreading the energy over a wider frequency range than the bandwidth measured by the EMI test equipment. The amount of EMI reduction is directly related to the range of the frequency variation. The range of frequency variation is fixed internally; however, its selection is randomly chosen by the combination of an external feedback voltage and an internal freerunning oscillator. This randomly chosen switching frequency effectively spreads the EMI noise near switching frequency and allows the use of a costeffective inductor instead of an AC input line filter to satisfy world-wide EMI requirements. IEA [A] Sinking current 12uA at 2.55V +24uA -24uA IDS several mseconds Sourcing current 12uA at 2.45V tSW=1/fSW tSW Dt fSW t 480umho MAX 240umho fSW+1/2DfSW VFB no repetition several miliseconds MAX fSW-1/2DfSW 2.4V VREF (2.5V) 2.6V VFB Figure 20. Characteristics of gm Amplifier 3.2 Pulse-by-pulse Current Limit Because current-mode control is employed, the peak current flowing through the SenseFET is limited by the inverting input of PWM comparator, as shown in Figure 19. Assuming that 50 µA current source flows only through the internal resistors (3R + R = 46 kΩ), t Figure 18. Frequency Fluctuation Waveform © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 GM [umho] 9 www.fairchildsemi.com www.onsemi.com FSL306LR — Green Mode Buck Switch Functional Description reaches 3 V, the internal fixed OLP delay (40 ms) is activated. After this delay, the switching operation is terminated, as shown in Figure 22. OSC 3R 3.3 Leading Edge Blanking (LEB) At the instant the internal SenseFET is turned on; primary-side capacitance and secondary-side rectifier diode reverse recovery of flyback application, the freewheeling diode reverse recovery, and other parasitic capacitance of buck application typically cause a highcurrent spike through the SenseFET. Excessive voltage across the sensing resistor (RSENSE) leads to incorrect feedback operation in the current-mode control. To counter this effect, the FSL306LR have Leading-Edge Blanking (LEB) circuits (see Figure 19). This circuit inhibits the PWM comparator for a short time (tLEB) after the SenseFET is turned on. LEB R 5 OLP PWM S Q R Q Gate driver VCOMP RSENSE 40ms delay OLP VOLP Figure 21. Overload Protection Internal Circuit Vcc HVREG VSTART VSTOP 20ms Ids 40ms 650ms Normal with SS SS 40ms 650ms 4. Protection Circuits The protective functions include Overload Protection (OLP), Over-Voltage Protection (OVP), Under-Voltage Lockout (UVLO), Feedback Open Loop Protection (FB_OLP), Abnormal Over-Current Protection (AOCP), and Thermal Shutdown (TSD). All of the protections operate in Auto-Restart Mode. Since these protection circuits are fully integrated inside the IC without external components, reliability is improved without increasing cost and PCB space. If a fault condition occurs, switching is terminated and the SenseFET remains off. At the same time, internal protection timing control is activated to decrease power consumption and stress on passive and active components during Auto-Restart. When internal protection timing control is activated, VCC is regulated with 10 V through the internal high-voltage regulator until switching is terminated. This internal protection timing control continues until restart time (650 ms) is counted. After counting to 650 ms, the internal high-voltage regulator is disabled and VCC is decreased. When VCC reaches the UVLO stop voltage VSTOP (7 V), the protection is reset and the internal highvoltage current source charges the VCC capacitor via the drain pin again. When VCC reaches the UVLO start voltage, VSTART (8 V), the FSL306LR resumes normal operation. In this manner, Auto-Restart can alternately enable and disable the switching of the power SenseFET until the fault condition is eliminated. Power on Over loading disappear Over loading disappear Figure 22. Overload Protection (OLP) Waveform 4.2 Abnormal Over-Current Protection (AOCP) When output is shorted at high input voltage, much higher drain current peak than pulse-by-pulse current limit can flow through the SenseFET because turn on time is the same as the minimum turn-on time of FSL306LR. Even OLP is occasionally not enough to protect the FSL306LR in that abnormal case, since severe current stress is imposed on the SenseFET until OLP is triggered. FSL306LR includes the internal Abnormal Over-Current Protection (AOCP) circuit shown in Figure 23. The voltage across the RSENSE is compared with a preset AOCP level (VAOCP) after tLEB and, if the voltage across the RSENSE is greater than the AOCP level, the set signal is triggered after four switching times by an internal 2-bit counter, shutting down the SMPS, as shown in Figure 24. This LEB time can inhibit mis-triggering due to the leading-edge spike. OSC 3R AOCP PWM LEB R 4.1 Overload Protection (OLP) Overload is defined as the load current exceeding a preset level due to an unexpected event. In this situation, the protection circuit should be activated to protect the SMPS. However, even when the SMPS operates normally, the OLP circuit can be enabled during the load transition or startup. To avoid this undesired operation, an internal fixed delay (40 ms) circuit determines whether it is a transient situation or a true overload situation (see Figure 21). The current-mode feedback path limits the maximum power current and, when the output consumes more than this maximum power, the output voltage (VO) decreases below its rated voltage. This reduces feedback pin voltage, which increases the output current of the internal transconductance amplifier. Eventually VCOMP is increased. When VCOMP © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 Over loading Over loading S Q R Q 2-bit counter AOCP Gate driver RSENSE LEB VAOCP Figure 23. AOCP Circuit Vcc HVREG VSTART VSTOP Ids 4 switchings Output Short 650ms 650ms SS & 4 switchings Normal with SS Output Short disappear Figure 24. AOCP Waveform 10 www.fairchildsemi.com www.onsemi.com FSL306LR — Green Mode Buck Switch the cathode voltage of diode D2 is about 2.4 V. Since D1 is blocked when VCOMP exceeds 2.4 V, the maximum voltage of the cathode of D2 is clamped at this voltage. Therefore, the peak value of the current of the SenseFET is limited. 5. Soft-Start The internal soft-start circuit slowly increases the SenseFET current after it starts. The typical soft-start time is 10 ms, as shown in Figure 27, where progressive increments of the SenseFET current are allowed during startup. The pulse width to the power switching device is progressively increased to establish the correct working conditions for transformers, inductors, and capacitors. The voltage on the output capacitors is gradually increased to smoothly establish the required output voltage. Soft-start also helps to prevent transformer saturation and reduces stress on the secondary diode. 4.4 Over-Voltage Protection (OVP) If any feedback loop components fail due to a soldering defect, VCOMP climbs up in manner similar to the overload situation, forcing the preset maximum current to be supplied to the SMPS until the OLP is triggered. In this case, excessive energy is provided to the output and the output voltage may exceed the rated voltage before the OLP is activated. To prevent this situation, an Over-Voltage Protection (OVP) circuit is employed. In general, output voltage can be monitored through V CC and, when VCC exceeds 24.5 V, OVP is triggered, resulting in termination of switching operation. To avoid undesired activation of OVP during normal operation, VCC should be designed below 24.5 V (see Figure 25). OSC 3R 2 ILIM Soft start envelope 0.2ILIM OVP S PWM LEB R 1.25ms R Drain Current Q Gate driver Q VCC 8-Steps t Figure 27. Internal Soft-Start 6. Burst Mode Operation RSENSE OVP To minimize power dissipation in Standby Mode, the FSL306LR enters Burst Mode. As the load decreases, the comp voltage (VCOMP) decreases. As shown in Figure 28, the device automatically enters Burst Mode when the feedback voltage drops below VBURL. At this point, switching stops and the output voltages start to drop at a rate dependent on the standby current load. This causes VCOMP to rise. Once it passes VBURH, switching resumes. VCOMP then falls and the process repeats. Burst Mode alternately enables and disables switching of the SenseFET and reduces switching loss in Standby Mode. VOVP Figure 25. Over Voltage Protection Circuit 4.5 Feedback Open Loop Protection (FB_OLP) In the event of a feedback loop failure, especially a shorted lower-side resistor of the feedback pin; not only does VCOMP rise in a similar manner to the overload situation, but VFB starts to drop to IC ground level. Although OLP and OVP also can protect the SMPS in this situation, FB_OLP can reduce stress on SenseFET more. If there is no FB_OLP, output voltage is much higher than rated voltage before OLP or OVP trigger. When VFB drops below 0.5 V, FB_OLP is activated, switching off. To avoid undesired activation during startup, this function is disabled during soft-start time. VO Voset VCOMP OSC FB_OLP VBURH 3R VOUT R RH S PWM LEB R Q Q VFB VBURL Gate driver IDS RSENSE 4 FB_OLP RL VFB_OLP Figure 26. Feedback Open-loop Protection Circuit VDS time t1 Switching disabled t2 t3 Switching disabled t4 Figure 28. Burst Mode Operation © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 11 www.fairchildsemi.com www.onsemi.com FSL306LR — Green Mode Buck Switch 4.3 Thermal Shutdown (TSD) The SenseFET and control IC integrated on the same package makes it easier to detect the temperature of the SenseFET. When the junction temperature exceeds 135°C, thermal shutdown is activated. The FSL306LR are restarted after the temperature decreases to 60°C. 8. Adjusting Current Limit As output load condition is reduced, the switching loss becomes the largest power loss factor. FSL306LR uses the VCOMP pin voltage to monitor output load condition. As output load decreases, VCOMP decreases and switching frequency declines, as shown in Figure 29. Once VCOMP falls to 0.8 V, the switching frequency varies between 21 kHz and 23 kHz before Burst Mode operation. At Burst Mode operation, random frequency fluctuation still functions. As shown in Figure 30, a combined 46 kΩ internal resistance (3R + R) is connected to the inverting lead on the PWM comparator. An external resistance of Rx on the ILIMIT pin forms a parallel resistance with the 46 kΩ when the internal diodes are biased by the main current source of 50 µA. For example, FSL306LR have a typical SenseFET peak current limit of 0.45 A. Current limit can be adjusted to 0.3 A by inserting RX between the ILIMIT pin and the ground. The value of the RX can be estimated by the following equation: Switching frequency Random Frequency modulation range 0.45 A : 0.3 A = (46 kΩ + RX) : RX 53 kHz VFB 47 kHz (1) Transconductance Amplifier 4 VBIAS VREF VCOMP IPK 3R 5 PWM R 23 kHz 21 kHz ILIMIT VBURL VBURH 0.8V 1.9V VCOMP 3 VSENSE RX Figure 29. Green Mode Operation Figure 30. Current Limit Adjustment © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 12 www.fairchildsemi.com www.onsemi.com FSL306LR — Green Mode Buck Switch 7. Green Mode Operation Application Input Voltage Auxilary Power Rated Output 12 V (150 mA) 85 ~ 300 VAC Power Supply Rated Power 2.05 W 5 V (50 mA) Key Design Notes:  Small current rating inductors (L1 & L2), an SMD-type resistor (R1), and an additional AC rectifying diode (D2) are placed for good EMI performance.  External bias circuitry, a SMD-type resistor (R2), and a small-signal diode (D5) reduce power loss of the internal high-voltage regulator. C9 330pF 0805 C8 220nF 0805 F1 10Ω/1W D1 S1M SMA R5 220kΩ 0805 L1 470µH U1 FSL306LR 5.Vcomp D2 S1M SMA C1 4.7µF 400V R2 10Ω 0805 R3 20kΩ 0805 3.ILIMIT 6.Drain 2.VCC 7.Drain 1.GND R4 5.1kΩ 0805 VCC C6 1µF 0805 L2 470µH D5 1N4148 SOD32-F 4.VFB R1 3.3kΩ 0805 AC VCC C7 10nF 0805 C5 2.2µF 0805 12V Output D4 ES1J SMA L3 680µH U2 KA78L05AI D3 ES1J SMA 5V Output C3 100µF/25V C2 6.8µF 400V C4 47µF 25V Figure 31. Schematic Table 1. Bill of Materials Part Value Note Part Value Fuse F1 10 W Note Diode 1 W, Fusible Resistor Resistor R1 3.3 kΩ SMD 0805, 5% R2 10 Ω SMD 0805, 5% R3 20 kΩ SMD 0805, 1% R4 5.1 kΩ SMD 0805, 1% R5 220 kΩ SMD 0805, 5% Capacitor 1 A / 1000 V General-Purpose Rectifier D1 S1M D2 S1M D3 ES1J ON Semiconductor 1 A / 1000 V General-Purpose Rectifier ON Semiconductor 1 A / 600 V Ultra-Fast Recovery Rectifier ON Semiconductor 1 A / 600 V Ultra-Fast Recovery Rectifier D4 ES1J D5 1N4148 ON Semiconductor C1 4.7 µF / 400 V Electrolytic C2 6.8 µF / 400 V Electrolytic C3 100 µF / 25 V Electrolytic C4 47 µF / 25 V Electrolytic L1 470 µH SYNTON C5 2.2 µF SMD 0805 L2 470 µH SYNTON C6 1 µF SMD 0805 C7 10 nF SMD 0805 L3 680 µH C8 220 nF SMD 0805 C9 330 pF SMD 0805 U1 FSL306LRN / FSL306LRL U2 KA78L05AIMTF © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 High Conductance Fast Diode ON Semiconductor Inductor 13 PKS-0807-681K 3L Electronic ON Semiconductor 0.1 A / 5 V Positive Voltage Regulator ON Semiconductor www.fairchildsemi.com www.onsemi.com FSL306LR — Green Mode Buck Switch Typical Application Circuit FSL306LR — Green Mode Buck Switch Physical Dimensions Figure 32. 7-Lead, Molded Dual Inline Package (MDIP), JEDEC MS-001, .300 inch Wide Package drawings are provided as a service to customers considering ON Semiconductor components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact an ON Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of ON Semiconductor’s worldwide terms and conditions, specifically the warranty therein, which covers ON Semiconductor products. © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 14 www.fairchildsemi.com www.onsemi.com FSL306LR — Green Mode Buck Switch Physical Dimensions (continued) Figure 33. 7-Lead, .300" Wide, Surface Mount Package (LSOP) Package drawings are provided as a service to customers considering ON Semiconductor components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact an ON Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of ON Semiconductor’s worldwide terms and conditions, specifically the warranty therein, which covers ON Semiconductor products. © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 15 www.fairchildsemi.com www.onsemi.com FSL306LR — Green Mode Buck Switch ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor 19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com © 2013 Semiconductor Components Industries, LLC. FSL306LRN / FSL306LRL • Rev.2 N. American Technical Support: 800-282-9855 Toll Free USA/Canada. Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81-3-5817-1050 16 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative www.fairchildsemi.com www.onsemi.com ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor 19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com © Semiconductor Components Industries, LLC N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5817−1050 www.onsemi.com 1 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative www.onsemi.com