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LTM8048 Datasheet(PDF) 3 Page - Linear Technology |
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LTM8048 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 22 page  LTM8045 3 8045fa For more information www.linear.com/8045 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 LTM8045E is guaranteed to meet performance specifications from 0°C to 125°C. Specifications over the –40°C to 125°C internal temperature range are assured by design, characterization and correlation with statistical process controls. LTM8045I is guaranteed to meet specifications over the full –40°C to 125°C internal operating temperature range. The LTM8045MP is guaranteed to meet specifications over the The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. RUN = 12V unless otherwise specified. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS Input DC Voltage l 2.8 18 V Positive Output DC Voltage IOUT = 0.7A, RFB = 15.4kΩ, VOUT– Grounded IOUT = 0.375A, RFB =165kΩ, VOUT– Grounded 2.5 15 V V Negative Output DC Voltage IOUT = 0.7A, RFB = 30.0kΩ, VOUT+ Grounded IOUT = 0.375A, RFB =178kΩ, VOUT+ Grounded –2.5 –15 V V Continuous Output DC Current VIN = 12V, VOUT = 2.5V or –2.5V VIN = 12V, VOUT = 15V or –15V 0.7 0.375 A A VIN Quiescent Current VRUN = 0V Not Switching 0 10 1 µA mA Line Regulation 4V ≤ VIN ≤ 18V, IOUT = 0.2A 0.6 % Load Regulation 0.01A ≤ IOUT ≤ 0.58A 0.2 % Output RMS Voltage Ripple VIN = 12V, VOUT = 5V, IOUT = 580mA, 100kHz to 4MHz 4 mV Input Short-Circuit Current VOUT+ = VOUT– = 0V, VIN = 12V 200 mA Switching Frequency RT = 45.3k RT = 464k l l 1800 180 2000 200 2200 220 kHz kHz Voltage at FB Pin (Positive Output) Voltage at FB Pin (Negative Output) l l 1.195 0 1.215 5 1.235 12 V mV Current into FB Pin (Positive Output) Current into FB Pin (Negative Output) l l 81 81 83.3 83.3 86 86.5 µA µA RUN Pin Threshold Voltage RUN Pin Rising RUN Pin Falling 1.235 1.32 1.29 1.385 V V RUN Pin Current VRUN = 3V VRUN = 1.3V VRUN = 0V 9.7 40 11.6 0 60 13.4 0.1 µA µA µA SS Sourcing Current SS = 0V 5 8 13 µA Synchronization Frequency Range 200 2000 kHz Synchronization Duty Cycle 35 65 % SYNC Input Low Threshold 0.4 V SYNC Input High Threshold 1.3 V full –55°C to 125°C internal operating temperature range. Note that the maximum internal temperature is determined by specific operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. Note 3: This μModule converter includes overtemperature protection that is intended to protect the device during momentary overload conditions. Internal temperature will exceed 125°C when overtemperature protection is active. Continuous operation above the specified maximum internal operating junction temperature may impair device reliability. |
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