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MAX15017BATX+ Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX15017BATX+ Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 26 page 1A, 4.5V to 40V Input Buck Converters with 50mA Auxiliary LDO Regulators 4 _______________________________________________________________________________________ PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS MAX15014/MAX15016 100 200 SYNC Frequency Range fSYNC MAX15015/MAX15017 400 600 kHz Ramp Level Shift (Valley) 0.3 V ERROR AMPLIFER Soft-Start Reference Voltage VSS 1.210 1.235 1.260 V Soft-Start Current ISS VSS = 0V 7 12 17 µA FB Regulation Voltage VFB 1.210 1.235 1.260 V FB Input Range VFB 0 1.5 V FB Input Current IFB VFB = 1.244V -250 +250 nA COMP Voltage Range ICOMP = -500µA to +500µA 0.25 4.5 V Open-Loop Gain 80 dB Unity-Gain Bandwidth 1.8 MHz fSYNC = 500kHz, MAX15015/MAX15017 10 PWM Modulator Gain fSYNC = 135kHz, MAX15014/MAX15016 10 V/V CURRENT-LIMIT COMPARATOR Pulse Skip Threshold IPFM 100 200 300 mA Cycle-by-Cycle Current Limit IILIM 1.3 2 2.6 A Number of Consecutive ILIM Events to Hiccup 7— Hiccup Timeout 512 Clock periods POWER SWITCH Switch On-Resistance VBST - VLX = 6V 0.15 0.4 0.80 Ω Switch Gate Charge VBST - VLX = 6V 4 nC Switch Leakage Current VIN_SW = VIN_LDO = VLX = VDRAIN = 40V, VFB = 0V 10 µA BST Quiescent Current VBST = 40V, VDRAIN = 40V, VFB = 0V, DVREG = 5V 400 600 µA BST Leakage Current VBST = VDRAIN = VLX = VIN_SW = VIN_LDO = 40V, EN_SW = 0V 1µA CHARGE PUMP (MAX15015/MAX15016) C- Output Voltage Low Sinking 10mA 0.1 V C- Output Voltage High Relative to DVREG, sourcing 10mA 0.1 V DVREG to C+ On-Resistance Sourcing 10mA 10 Ω LX to PGND On-Resistance Sinking 10mA 12 Ω LDO Input Voltage Range VIN_LDO 540 V Undervoltage Lockout Threshold UVLO_LDOTH VIN_LDO rising 3.90 4.1 4.25 V Undervoltage Lockout Hysteresis UVLO_LDOHYST 0.3 V ELECTRICAL CHARACTERISTICS (continued) (VIN_SW = VIN_LDO = VDRAIN = 14V, VEN_SYS = VEN_SW = 2.4V, VREG = VDVREG, VSYNC = VSET_LDO = VSGND = VPGND = 0V, CREG = 1µF, CIN_SW = 0.1µF, CIN_LDO = 0.1µF, CLDO_OUT = 10µF, CDRAIN = 0.22µF, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) |
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