LT1521/LT1521-3 LT1521-3.3/LT1521-5 WWWUABSOLUTE MAXIMUM RATINGS (Note 1) Input Voltage .. ± 20V* Storage Temperature Range ... – 65°C to 150°C Output Pin Reverse Current .. 10mA Operating Junction Temperature Range (Note 2) Adjust Pin Current .. 10mA Commercial ... 0°C to 125°C Shutdown Pin Input Voltage (Note 1) .. 6.5V, – 0.6V Industrial ... – 40°C to 125°C Shutdown Pin Input Current (Note 1) ... 5mA Lead Temperature (Soldering, 10 sec).. 300°C Output Short-Circuit Duration .. Indefinite *For applications requiring input voltage ratings greater than 20V, contact the factory. UWUPACKAGE/ORDER INFORMATION TOP VIEW FRONT VIEW TOP VIEW OUT 1 8 IN 3 OUT OUT 1 8 IN SENSE/ADJ* 2 7 GND SENSE/ADJ* 2 7 NC TAB IS NC 3 6 NC 2 GND GND GND 3 6 GND GND 4 5 SHDN NC 4 5 SHDN MS8 PACKAGE 1 IN 8-LEAD PLASTIC MSOP S8 PACKAGE ST PACKAGE 8-LEAD PLASTIC SO *PIN 2 = SENSE FOR LT1521-3/ 3-LEAD PLASTIC SOT-223 LT1521-3.3/LT1521-5 *PIN 2 = SENSE FOR LT1521-3/LT1521-3.3/LT1521-5 PIN 2 = ADJ FOR LT1521 = ADJ FOR LT1521 TJMAX = 125°C, θJA = 70°C/ W TJMAX = 125°C, θJA = 50°C/ W TJMAX = 125°C, θJA = 125°C/ W SEE THE APPLICATIONS INFORMATION SECTION SEE THE APPLICATIONS INFORMATION SECTION ORDER PART NUMBER ORDER PART NUMBER ORDER PART NUMBER LT1521CMS8 LT1521CS8 LT1521CST-3 LT1521CMS8-3 LT1521CS8-3 LT1521CST-3.3 LT1521CMS8-3.3 LT1521CS8-3.3 LT1521CST-5 LT1521CMS8-5 LT1521CS8-5 LT1521IST-3 LT1521IS8 LT1521IST-3.3 LT1521IS8-3 LT1521IST-5 LT1521IS8-3.3 LT1521IS8-5 MS8 PART MARKING S8 PART MARKING ST PART MARKING LTEZ 1521 1521I 15213 1521I3 LTFB 15213 1521I3 152133 1521I33 LTDU 152133 1521I33 15215 1521I5 LTFA 15215 1521I5 Consult LTC Marketing for parts specified with wider operating temperature ranges. 1521335fb 2