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.

K A 7 5 0 April 2009 0 C — S KA7500C M P S SMPS Controller C o n t r o Features Description ll e r (cid:131) Internal Regulator Provides a Stable 5V Reference The KA7500C is used for the control circuit of the pulse- Supply Trimmed to ±1% Accuracy width modulation switching regulator. The KA7500C consists of 5V reference voltage circuit, two error (cid:131) Uncommitted Output TR for 200mA Sink or Source amplifiers, flip flop, an output control circuit, a PWM Current comparator, a dead-time comparator, and an oscillator. (cid:131) Output Control for Push-Pull or Single-Ended This device can be operated in the switching frequency Operation of 1kHz to 300kHz. The precision of voltage reference (cid:131) Variable Duty Cycle by Dead-Time Control (Pin 4) (VREF) is improved up to ±1% with trimming. This Complete PWM Control Circuit provides a better output voltage regulation. The operating temperature range is -25°C ~ +85°C. (cid:131) On-Chip Oscillator with Master or Slave Operation (cid:131) Internal Circuit Prohibits Double Pulse at Either Output 16-Lead DIP 16-Lead SOP Ordering Information Operating Eco Part Number Package Packing Method Temperature Range Status KA7500C 16-Lead Dual Inline Package (DIP) Tube KA7500CD -25 to +85°C RoHS Tube 16-Lead Small Outline Package (SOP) KA7500CDTF Tape and Reel For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. © 2003 Fairchild Semiconductor Corporation www.fairchildsemi.com KA7500C • Rev. 1.0.2

K A Block Diagram 7 5 0 0 C — S M P S C o n t r o l l e r Figure 1. Block Diagram © 2003 Fairchild Semiconductor Corporation www.fairchildsemi.com KA7500C • Rev. 1.0.2 2

K A Typical Application 7 5 0 0 C — VO=5V KSA1010 S VI=10Vto40V 1mH,2A IO=1A M P S C o n 47Ω t r o l l e r 150Ω 1MΩ 0.1µF 50µF 10V + 12 11 8 3 -2 5.1KΩ VCC C2 C1 COMPINPUT VREF14 5.1KΩ KA7500C -15 5.1KΩ +1 150Ω +16 D.T GND E1 E2 O.C RT CT 4 7 9 10 13 6 5 + + 50µF + 500µF 50V 47KΩ 0.001µF 10V GND 0.1 Figure 2. Pulse-Width Modulated Step-Down Converter © 2003 Fairchild Semiconductor Corporation www.fairchildsemi.com KA7500C • Rev. 1.0.2 3

K A Absolute Maximum Ratings 7 5 Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be 0 0 operable above the recommended operating conditions and stressing the parts to these levels is not recommended. C In addition, extended exposure to stresses above the recommended operating conditions may affect device — reliability. The absolute maximum ratings are stress ratings only. S M Symbol Parameter Min. Max. Unit P V Supply Voltage 42 V S CC C VC Collector Supply Voltage 42 V o n IO Output Current 250 mA t r o V Amplifier Input Voltage V + 0.3 V IN CC l l e KA7500C 1 r P Power Dissipation W D KA7500CD 0.9 T Operation Temperature Range -25 +85 °C OPR T Storage Temperature Rang -65 +150 °C STG T Junction Temperature +125 °C J Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter Min. Typ. Max. Unit V Power Supply Voltage 7 15 40 V CC V , V Collector Supply Voltage 30 40 V C1 C2 I , I Collector Output Current (Each Transition) 200 mA C1 C2 V Amplifier Input Voltage 0.3 V - 2.0 V IN CC I Current Into Feedback Terminal 0.3 mA FB I Reference Output Terminal 10 mA REF RT Timing Resistor 1.8 30.0 500.0 KΩ C Timing Capacitor 0.0047 0.0010 10.0000 µA T f Oscillator Frequency 1 40 200 kHz OSC V PWM Input Voltage (Pins 3, 4, and 13) 0.3 5.3 V IN_PWM © 2003 Fairchild Semiconductor Corporation www.fairchildsemi.com KA7500C • Rev. 1.0.2 4

K A Electrical Characteristics 7 5 V = 20V, f = 10kHz, T = -25°C to +85°C, unless otherwise specified. 0 CC A 0 C Symbol Parameter Conditions Min. Typ. Max. Units — Reference Section S I =1mA, T =25°C(1) 4.95 5.00 5.05 M REF A VREF Reference Output Voltage V P I =1mA 4.90 5.00 5.10 REF S RLINE Line Regulation VCC=7V to 40V 2 25 mV C o RLOAD Load Regulation IREF=1mA to 10mA 1 15 mV n t ISC Short-Circuit Output Current VREF=0V 10 35 50 mA ro Oscillation Frequency ll e CT=0.001µF, RT=30KΩ 40.0 r C =0.01µF, R =12KΩ, T T 9.2 10.0 10.8 fOSC Oscillation Frequency TA=25°C kHz C =0.01µF, R =12KΩ, T T 9.0 12.0 T =T to T A LOW HIGH Δf/Δt Frequency Change with Temperature C =0.01µF, R =12KΩ 2 % T T Dead-Time Control Section IBIAS Input Bias Current VCC=15V, 0V≤ V4≤ 5.25V -2 -10 µA V =15V, V =0V, OC D Maximum Duty Cycle CC 4 45 % (MAX) Pin=V REF Zero Duty Cycle 3.0 3.3 V Input Threshold Voltage V ITH Maximum Duty Cycle 0 Error Amplifier Section V Input Offset Voltage V =2.5V 2 10 mV IO 3 I Input Offset Current V =2.5V 25 250 mA IO 3 I Input Bias Current V =2.5V 0.2 1.0 µA BIAS 3 VCIM Common Mode Input Voltage 7V≤ VCC ≤ 40V -0.3 VCC V GVO Open-Loop Voltage Gain 0.5V≤ V3 ≤ 3.5V 70 95 dB B Unit-Gain Bandwidth 650 kHz W PWM Comparator Section V Input Threshold Voltage Zero Duty Cycle 4.0 4.5 V ITH I Input Sink Current V =0.7V -0.3 -0.7 mA SINK 3 Output Section Output Saturation Voltage Common V V =0V, I =200mA 1.0 1.3 CE(SAT) Emitter E C V V Emitter-Follower V =15V, I =-200mA 1.5 2.5 CC(SAT) C E I Collector Off-State Current V =40V, V =40V 2 100 C(OFF) CC CE µA I Emitter Off-State Current V =V =40V, V =40V -100 E(OFF) CC C E Total Device I Supply Current Pin6=V , V =15V 6 10 mA CC REF CC Output Switching Characteristics Rise Time, Common Emitter, t 100 200 R Common Collector ns Fall Time, Common Emitter, t 25 100 F Common Collector Note: 1. This is guaranteed where the marking code of the package surface is over 027. © 2003 Fairchild Semiconductor Corporation www.fairchildsemi.com KA7500C • Rev. 1.0.2 5

10.10 A 9.70 9.08 0.65 8.68 16 9 B 4.15 B 6.00 B 7.35 3.85 3.75 1.75 1 8 0.51 0.30 1.27 0.36 1.27 0.20 M C B A LAND PATTERN RECOMMENDATION TOP VIEW 1.65 R0.20 1.45 C A 1.80 MAX 0.10 C 0.303 0.05 MIN 0.153 B FRONT VIEW SIDE VIEW NOTES: 8° A. THIS DRAWING COMPLIES WITH JEDEC MS-012, EXCEPT AS NOTED GAGE PLANE B THIS DIMENSION IS OUTSIDE JEDEC R0.10 MS-012 VALUE C. ALL DIMENSIONS ARE IN MILLIMETERS D. DIMENSIONS ARE EXCLUSIVE OF BURRS, MOLD FLASH, AND TIE BAR EXTRUSIONS E. LAND PATTERN STANDARD: SEATING 0.36 SOIC127P600X175-16AM 0.90 PLANE F. DRAWING FILENAME: MKT-M16Erev2 0.50 DETAIL A SCALE 3:1

19.69 A 18.67 16 9 7.11 6.10 1 8 B (0.40) TOP VIEW 8.25 1.78 7.62 1.14 0.28 0.20 4.95 5.33 MAX 2.92 3.81 C 2.92 0.38 MIN 0.56 2.54 10.92 0.36 0.25 M C SIDE VIEW FRONT VIEW NOTES: A. CONFORMS TO JEDEC MS-001, VARIATION BB B. ALL DIMENSIONS ARE IN MILLIMETERS C. DIMENSIONS ARE EXCLUSIVE OF BURRS, MOLD FLASH, AND TIE BAR PROTRUSIONS D. DIMENSIONS AND TOLERANCES PER ASME Y14.5M-2009 E. DRAWING FILENAME: MKT-N16Erev3

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