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MAX5035BUSA Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX5035BUSA Datasheet(HTML) 4 Page - Maxim Integrated Products |
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4 / 17 page  1A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converter 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (MAX5035_A_ _) (VIN = +12V, VON/OFF = +12V, IOUT = 0, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C. See the Typical Application Circuit.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS VIN = 12V, ILOAD = 0.5A, MAX5035A 86 VIN = 12V, ILOAD = 0.5A, MAX5035B 90 VIN = 24V, ILOAD = 0.5A, MAX5035C 94 Efficiency η VIN = 12V, VOUT = 5V, ILOAD = 0.5A, MAX5035D 90 % VFB = 3.5V, VIN = 7.5V to 76V, MAX5035A 270 440 VFB = 5.5V, VIN = 7.5V to 76V, MAX5035B 270 440 VFB = 13V, VIN = 15V to 76V, MAX5035C 270 440 Quiescent Supply Current IQ VFB = 1.3V, MAX5035D 270 440 µA Shutdown Current ISHDN VON/OFF = 0V, VIN = 7.5V to 76V 10 45 µA Peak Switch Current Limit ILIM (Note 1) 1.30 1.80 2.50 A Switch Leakage Current IOL VIN = 76V, VON/OFF = 0V, VLX = 0V 1 µA Switch On-Resistance RDS(ON) ISWITCH = 1A 0.40 0.80 Ω PFM Threshold IPFM Minimum switch current in any cycle 55 85 130 mA FB Input Bias Current IB MAX5035D -150 +0.01 +150 nA ON/OFF CONTROL INPUT ON/OFF Input-Voltage Threshold VON/OFF Rising trip point 1.50 1.69 1.85 V ON/OFF Input-Voltage Hysteresis VHYST 100 mV ON/OFF Input Current ION/OFF VON/OFF = 0V to VIN 10 150 nA OSCILLATOR Oscillator Frequency fOSC 105 125 137 kHz Maximum Duty Cycle DMAX MAX5035D 95 % VOLTAGE REGULATOR Regulator Output Voltage VD VIN = 8.5V to 76V, IL = 0 6.5 7.8 9.0 V Dropout Voltage 7.5V ≤ VIN ≤ 8.5V, IL = 1mA 2.0 V Load Regulation ΔVD/ΔIVD 0 to 5mA 150 Ω PACKAGE THERMAL CHARACTERISTICS SO package (JEDEC 51) 170 Thermal Resistance (Junction to Ambient) θJA DIP package (JEDEC 51) 110 °C/W THERMAL SHUTDOWN Thermal-Shutdown Junction Temperature TSH +160 °C Thermal-Shutdown Hysteresis THYST 20 °C Note 1: Switch current at which current limit is activated. Note 2: All limits at -40°C are guaranteed by design, not production tested. |
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