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MAX15039ETG Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX15039ETG Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 19 page 6A, 2MHz Step-Down Regulator with Integrated Switches 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VIN = VEN = 5V, CVDD = 2.2µF, TA = TJ = -40°C to +85°C, typical values are at TA = +25°C, circuit of Figure 1, unless otherwise noted.) (Note 3) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. IN, PWRGD to GND..................................................-0.3V to +6V VDD to GND..................-0.3V to the lower of +4V or (VIN + 0.3V) COMP, FB, MODE, REFIN, CTL1, CTL2, SS, FREQ to GND ..........................................-0.3V to (VDD + 0.3V) OUT, EN to GND ......................................................-0.3V to +6V BST to LX..................................................................-0.3V to +6V BST to GND ............................................................-0.3V to +12V PGND to GND .......................................................-0.3V to +0.3V LX to PGND ..................-0.3V to the lower of +6V or (VIN + 0.3V) LX to PGND ..........-1V to the lower of +6V or (VIN + 1V) for 50ns ILX(RMS) (Note 1) ......................................................................6A VDD Output Short-Circuit Duration .............................Continuous Converter Output Short-Circuit Duration ....................Continuous Continuous Power Dissipation (TA = +70°C) 24-Pin TQFN (derate 27.8mW/°C above +70°C) ........2222mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Soldering Temperature (reflow) .......................................+260°C 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. Note 1: LX has internal clamp diodes to PGND and IN. Applications that forward bias these diodes should take care not to exceed the IC’s package power dissipation limits. PARAMETER CONDITIONS MIN TYP MAX UNITS IN IN Voltage Range 2.9 5.5 V VIN = 3.3V 4.9 8 IN Supply Current fS = 1MHz, no load VIN = 5V 5.2 8.5 mA VIN = 5V, VEN = 0V 10 20 Total Shutdown Current from IN VIN = VDD = 3.3V, VEN = 0V 45 µA 3.3V LDO (VDD) VDD rising 2.6 2.8 VDD falling 2.35 2.55 V VDD Undervoltage Lockout Threshold LX starts/stops switching Minimum glitch-width rejection 10 µs VDD Output Voltage VIN = 5V, IVDD = 0 to 10mA 3.1 3.3 3.5 V VDD Dropout VIN = 2.9V, IVDD = 10mA 0.08 V VDD Current Limit VIN = 5V, VDD = 0V 25 40 mA BST BST Supply Current VBST = VIN = 5V, VLX = 0 or 5V, VEN = 0V 0.025 µA PWM COMPARATOR PWM Comparator Propagation Delay 10mV overdrive 20 ns PWM Peak-to-Peak Ramp Amplitude 1V PWM Valley Amplitude 0.8 V PACKAGE THERMAL CHARACTERISTICS (Note 2) TQFN Junction-to-Ambient Thermal Resistance ( θJA)............36°C/W Junction-to-Case Resistance ( θJC).................................6°C/W |
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