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MAX15058EWL Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX15058EWL Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 21 page High-Efficiency, 3A, Current-Mode Synchronous, Step-Down Switching Regulator 2 ______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (VIN = 5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC.) (Note 3) ABSOLUTE MAXIMUM RATINGS Note 1: LX has internal clamp diodes to GND and IN. Applications that forward bias these diodes should not exceed the IC’s pack- age power dissipation limits. Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four- layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. IN, PGOOD to GND ................................................-0.3V to +6V LX to GND ..................................................-0.3V to (VIN + 0.3V) LX to GND .......................................-1V to (VIN + 0.3V) for 50ns EN, COMP, FB, SS/REFIN, SKIP to GND...-0.3V to (VIN + 0.3V) LX Current (Note 1) ................................................... -6A to +6A Output Short-Circuit Duration....................................Continuous Continuous Power Dissipation (TA = +70NC) 9-Bump WLP Multilayer Board (derate 14.1mW/NC above TA = +70NC)....................1127mW Junction-to-Case Thermal Resistance (BJC) (Note 2).....26NC/W Junction-to-Ambient Thermal Resistance (BJA) (Note 2)..........................................71NC/W Operating Temperature Range.......................... -40NC to +85NC Storage Temperature Range............................ -65NC to +150NC Soldering Temperature (reflow) ......................................+260NC PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS IN Voltage Range VIN 2.7 5.5 V IN Shutdown Supply Current VEN = 0V 0.2 2 F A IN Supply Current IIN VEN = 5V, VFB = 0.65V, no switching 1.56 2.3 mA VIN Undervoltage Lockout Threshold LX starts switching, VIN rising 2.6 2.7 V VIN Undervoltage Lockout Hysteresis LX stops switching, VIN falling 200 mV ERROR AMPLIFIER Transconductance gMV 1.5 mS Voltage Gain AVEA 90 dB FB Set-Point Accuracy VFB Over line, load, and temperature 594 600 606 mV FB Input Bias Current IFB VFB = 0.6V -500 +500 nA COMP to Current-Sense Transconductance gMC 18 A/V COMP Clamp Low VFB = 0.65V, VSS = 0.6V 0.94 V POWER SWITCHES LX On-Resistance, High-Side pMOS 30 mI LX On-Resistance, Low-Side nMOS 18 mI High-Side Switch Current-Limit Threshold IHSCL 5 A Low-Side Switch Sink Current- Limit Threshold 4 A Low-Side Switch Source Current- Limit Threshold 5 A |
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