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LTC3577-1 Datasheet(PDF) 8 Page - Linear Technology |
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LTC3577-1 Datasheet(HTML) 8 Page - Linear Technology |
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8 / 50 page  LTC3589/LTC3589-1/ LTC3589-2 8 3589fe 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 LTC3589 are tested under pulsed load conditions such that TJ ≈ TA. The LTC3589E are guaranteed to meet specifications from 0°C to 85°C junction temperature. Specifications over the –40°C to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process controls. The LTC3589I are guaranteed over the –40°C to 125°C operating junction temperature range and the LTC3589H are guaranteed over the full –40°C to 150°C operating junction temperature range. High junction temperatures degrade operating lifetimes; operating lifetime is derated for junction temperatures greater than 125°C. The junction temperature (TJ in °C) is calculated from the ambient temperature (TA in °C) and power dissipation (PD, in Watts) according to the formula: TJ = TA + (PD • θJA), where the package junction to ambient thermal impedance θJA = 33°C/W. Note that the maximum ambient temperature consistent with these specifications is determined by specific operating conditions in conjunction with board layout, the rated package thermal impedance and other environmental factors. Note 3: The LTC3589 include overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 150°C when overtemperature protection is active. Continuous operation above the specified maximum operating temperature may impair device reliability. Note 4: Dropout voltage is defined as (VIN – VLDO) for LDO1 or (VIN_LDO – VLDO) for other LDOs when VLDO is 3% lower than VLDO measured with VIN = VIN_LDO = 4.3V. Note 5: Dynamic supply current is higher due to the gate charge being delivered at the switching frequency. Note 6: Soft-start measured in test mode with regulator error amplifier in unity gain mode. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VRSTO RSTO Output Low Voltage IRSTO = 3mA 0.1 0.4 V IRSTO RSTO Output High Leakage Current VRSTO = 3.8V –0.1 0.1 μA VIRQ IRQ Output Low Voltage IIRQ = 3mA 0.1 0.4 V IIRQ IRQ Output High Leakage Current VIRQ = 3.8V –0.1 0.1 μA The l denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = PVIN1 = PVIN2 = PVIN3 = PVIN4 = VIN_LDO2 = VIN_LDO34 = DVDD = 3.8V. All regulators disabled unless otherwise noted. |
Similar Part No. - LTC3577-1 |
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Similar Description - LTC3577-1 |
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