h copper heat-sink tabs. For both package styles, the power tab is at ground potential and needs no electrical isolation. Each package type is available in a lead (Pb) free version (100% matte-tin-plated leadframe). SELECTION GUIDE Part Number A4973SB-T * A4973SLBTR-T Package 16-pin DIP with exposed thermal tabs 16-pin SOICW with internally-fused pins Packing 25 pieces per tube 1000 pieces per reel * A4973SB-T is in production but have been determined to be LAST TIME BUY. This classification indicates that the product is obsolete and notice has been given. Sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available. Date of status change: July 2, 2018. Deadline for receipt of LAST TIME BUY orders: December 1, 2018. For existing customer transition, and for new customers or new applications, use A4973SLBTR-T. ABSOLUTE MAXIMUM RAT

h copper heat-sink tabs. For both package styles, the power tab is at ground potential and needs no electrical isolation. Each package type is available in a lead (Pb) free version (100% matte-tin-plated leadframe). SELECTION GUIDE Part Number A4973SB-T * A4973SLBTR-T Package 16-pin DIP with exposed thermal tabs 16-pin SOICW with internally-fused pins Packing 25 pieces per tube 1000 pieces per reel * A4973SB-T is no longer in production. The device should not be purchased for new design applications. Samples are no longer available. Date of status change: July 2, 2018. For existing customer transition, and for new customers or new applications, use A4973SLBTR-T. ABSOLUTE MAXIMUM RATINGS Characteristic Symbol Notes Rating Units Load Supply Voltage VBB 50 V Logic Supply Voltage VCC 6 V VIN -0.3 to 6 V VSENSE 0.5 V 1.5 A Logic/Reference Input Voltage Range Sense Voltage Output Current, Continuous IOUT Output current rating may be limited by duty cycle, ambient temperature, and heat sink

ith copper heat-sink tabs. For both package styles, the power tab is at ground potential and needs no electrical isolation. Each package type is available in a lead (Pb) free version (100% matte tin plated leadframe). Selection Guide Part Number A4973SB-T A4973SLBTR-T Package 16-pin DIP with exposed thermal tabs 16-pin SOICW with internally-fused pins Packing 25 pieces per tube 1000 pieces per reel Absolute Maximum Ratings Characteristic Symbol Rating Units 50 V VCC 6 V VIN -0.3 to 6 V 0.5 V 1.5 A 6 A Load Supply Voltage VBB Logic Supply Voltage Logic/Reference Input Voltage Range Sense Voltage Notes VSENSE Output Current, Continuous IOUT Output current rating may be limited by duty cycle, ambient temperature, and heat sinking. Under any set of conditions, do not exceed the specified current rating or a junction temperature of 150C. Transient Output Current IOUT tW < 2 s Package Power Dissipation PD Operating Ambient Temperature TA Maximum Junction Temperature TJ(max) Storage Temperature Range S

ith copper heat-sink tabs. For both package styles, the power tab is at ground potential and needs no electrical isolation. Each package type is available in a lead (Pb) free version (100% matte tin plated leadframe). Selection Guide Part Number A4973SB-T A4973SLBTR-T Package 16-pin DIP with exposed thermal tabs 16-pin SOICW with internally-fused pins Packing 25 pieces per tube 1000 pieces per reel Absolute Maximum Ratings Characteristic Symbol Rating Units 50 V VCC 6 V VIN -0.3 to 6 V 0.5 V 1.5 A 6 A Load Supply Voltage VBB Logic Supply Voltage Logic/Reference Input Voltage Range Sense Voltage Notes VSENSE Output Current, Continuous IOUT Output current rating may be limited by duty cycle, ambient temperature, and heat sinking. Under any set of conditions, do not exceed the specified current rating or a junction temperature of 150C. Transient Output Current IOUT tW < 2 s Package Power Dissipation PD Operating Ambient Temperature TA Maximum Junction Temperature TJ(max) Storage Temperature Range S