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LTM8053 Arkusz danych(PDF) 3 Page - Linear Technology |
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LTM8053 Arkusz danych(HTML) 3 Page - Linear Technology |
3 / 28 page LTM8053 3 8053fc For more information www.linear.com/LTM8053 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified internal operating temperature range, otherwise specifications are at TJ = 25°C. VIN = 12V, RUN = 2V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum Input Voltage VIN Rising l 3.4 V Output DC Voltage RFB Open RFB = 16.9k, VIN = 40V 0.97 15 V V Peak Output DC Current VOUT = 3.3V, fSW = 1MHz 6 A Quiescent Current Into VIN RUN = 0V BIAS = 0V, No Load, SYNC = 0V, Not Switching 3 300 µA µA Quiescent Current Into BIAS BIAS = 5V, RUN = 0V BIAS = 5V, No Load, SYNC = 0V, Not Switching BIAS = 5V, VOUT = 3.3V, IOUT = 3.5A, fSW = 1MHz 1 275 12 µA µA mA Line Regulation 5.5V < VIN < 36V, IOUT = 1A 0.5 % Load Regulation 0.1A < IOUT < 3.5A 0.5 % Output Voltage Ripple IOUT = 3.5A 10 mV Switching Frequency RT = 232k RT = 41.2k RT = 10.7k 200 0.95 3 kHz MHz MHz Voltage at FB l 950 970 980 mV Minimum BIAS Voltage (Note 5) 3.2 V RUN Threshold Voltage 0.9 1.06 V RUN Current 1 µA TR/SS Current TR/SS = 0V 2 µA TR/SS Pull-Down TR/SS = 0.1V 200 PG Threshold Voltage at FB (Upper) FB Falling (Note 6) 1.05 V PG Threshold Voltage at FB (Lower) FB Rising (Note 6) 0.89 V PG Leakage Current PG = 42V 1 µA PG Sink Current PG = 0.1V 150 µA SYNC Threshold Voltage Synchronization 0.4 1.5 V SYNC Voltage To Enable Spread Spectrum 2.9 4.2 V SYNC Current SYNC = 0V 35 µA 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: Unless otherwise noted, the absolute minimum voltage is zero. Note 3: The LTM8053E is guaranteed to meet performance specifications from 0°C to 125°C internal. Specifications over the full –40°C to 125°C internal operating temperature range are assured by design, characterization and correlation with statistical process controls. The LTM8053I is guaranteed to meet specifications over the full –40°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 4: The LTM8053 contains overtemperature protection that is intended to protect the device during momentary overload conditions. The internal temperature exceeds the maximum operating junction temperature when the overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability. Note 5. Below this specified voltage, internal circuitry will draw power from VIN. Note 6. PG transitions from low to high. |
Podobny numer części - LTM8053 |
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Podobny opis - LTM8053 |
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