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LTC7151S Datasheet(PDF) 4 Page - Analog Devices |
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LTC7151S Datasheet(HTML) 4 Page - Analog Devices |
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4 / 26 page  LTC3311 4 Rev. 0 For more information www.analog.com TYPICAL PERFORMANCE CHARACTERISTICS VOUT Line Regulation VOUT = 1.2V VOUT Load Regulation VOUT = 1.2V Efficiency, VOUT = 0.5V Forced Continuous Operation VIN = 3.3V, TA = 25°C, unless otherwise noted. Efficiency, VOUT = 0.5V Pulse Skip Mode Operation Efficiency, VOUT = 1.2V Forced Continuous Operation Efficiency, VOUT = 1.2V Pulse Skip Mode Operation ILOAD = 1A LOAD = 3A LOAD = 6A LOAD = 9A LOAD = 12A INPUT VOLTAGE (V) 2.5 3 3.5 4 4.5 5 5.5 1.188 1.190 1.192 1.194 1.196 1.198 1.200 1.202 1.204 1.206 1.208 1.210 1.212 In VOUT = 1.2V Application 3311 G01 VIN = 2.5V VIN = 3.3V VIN = 5V ILOAD (A) 0 2 4 6 8 10 12 1.188 1.190 1.192 1.194 1.196 1.198 1.200 1.202 1.204 1.206 1.208 1.210 1.212 In VOUT = 1.2V Application 3311 G02 FSW = 2MHz, Wurth HCM5030 744350300055 VIN = 2.5V VIN = 3.3V VIN = 5V ILOAD (A) 0.001 0.01 0.1 1 10 20 0 10 20 30 40 50 60 70 80 90 100 Forced Continuous Operation 3311 G03 FSW = 2MHz, Wurth HCM5030 744350300055 VIN = 2.5V VIN = 3.3V VIN = 5V ILOAD (A) 0.001 0.01 0.1 1 10 20 0 10 20 30 40 50 60 70 80 90 100 3311 G04 fSW = 2MHz Wurth HCM5030 74435030010 VIN = 2.5V VIN = 3.3V VIN = 5V ILOAD (A) 0.001 0.01 0.1 1 10 20 0 10 20 30 40 50 60 70 80 90 100 Forced Continuous Operation 3311 G05 fSW = 2MHz Wurth HCM5030 74435030010 VIN = 2.5V VIN = 3.3V VIN = 5V ILOAD (A) 0.001 0.01 0.1 1 10 20 0 10 20 30 40 50 60 70 80 90 100 Pulse Skip Mode Operation 3311 G06 ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LTC3311J/ LTC3311H are guaranteed to meet performance specifications from –40°C to 150°C junction temperature. PARAMETER CONDITIONS MIN TYP MAX UNITS MODE/SYNC Input Resistance 200 kΩ MODE/SYNC No Clock Detect Time 20 µs MODE/SYNC Clock Out Rise/Fall Time CMODE/SYNC = 50pF 10 ns MODE/SYNC Clock Low Output Voltage IMODE/SYNC = 100µA 0.2 V MODE/SYNC Clock High Output Voltage IMODE/SYNC = 100µA VIN – 0.2 V MODE/SYNC Clock Out Duty Cycle 50 % The l denotes the specifications which apply over the specified operating temperature range, otherwise specifications are at TA = 25°C. (Notes 2, 3) VIN = 3.3V, VEN = VIN, MODE/SYNC = 0V, unless otherwise noted. Note 3: The LTC3311 includes overtemperature protection which protects the device during momentary overload conditions. Junction temperatures will exceed 150°C when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability. Note 4: Supply current specification does not include switching currents. Actual supply currents will be higher. |
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