SPECIFICATION NOTICE LT1425 May 1999 The following characteristics have changed on the LT ®1425 data sheet as indicated in bold. For complete specifications, typical performance curves and applications information, please see the LT1425 data sheet. , LTC and LT are registered trademarks of Linear Technology Corporation. U W W W ABSOLUTE MAXIMUM RATINGS Operating Junction Temperature Range Commercial .......................................... 0°C to 125°C Industrial ......................................... – 40°C to 125°C ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TJ = 25°C. VIN = 5V, VSW open, VC = 1.4V, unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS ILIM Switch Current Limit Duty Cycle = 50%, 0°C ≤ TJ ≤ 125°C Duty Cycle = 50%, – 40°C ≤ TJ ≤ 125°C Duty Cycle = 80% ● ● 1.35 1.20 1.60 1.60 1.30 1.95 1.95 A A A Maximum Switch Duty Cycle ● 85 90 96 % Shutdown Mode Threshold ● 0.3 0.9 1.3 V For further information regarding this specification notice contact: Linear Technology Corporation 1630 McCarthy Blvd. Milpitas, California 95035-7417 Attn: Product Marketing Manager Phone: (408) 432-1900 sn1425 ©1999 LT/HP 0599 • PRINTED IN USA