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DFE252012F-R47M 数据表(PDF) 9 Page - Analog Devices |
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DFE252012F-R47M 数据表(HTML) 9 Page - Analog Devices |
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9 / 122 page  Electrical Characteristics—Top-Level (VSYS = VINx = 12V, VOUT1 = 0.8V (M1_RNG = 0x0), VOUT2 = 1.1V (M2_RNG = 0x1), VOUT3 = 1.8V (M3_RNG = 0x1), VOUT4 = 3.3V (M4_RNG = 0x2), single-phase configuration, VCE = 1.8V, VIO = 1.8V, TA = TJ = -40°C to +125°C, typical values are at TA = TJ = +25°C, unless otherwise noted. Note 2. ) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS INPUT VOLTAGE AND SUPPLY CURRENT SYS and INx Voltage Range VSYS, VINx 2.8 16 V SYS Undervoltage Lock- Out (UVLO) VUVLO_R VSYS rising 2.8 2.9 3.0 V VUVLO_F VSYS falling with 200mV of hysteresis 2.6 2.7 2.8 Power-On Reset (POR) Threshold (Note 7) VPOR VSYS falling 1.7 V Shutdown Supply Current (Note 3) ISHDN VCE = 0V, TJ = -40°C to +85°C 1.5 15 μA Standby Supply Current (Note 3) ISTBY FTMON_EN = 0, all bucks are disabled, TJ = -40°C to +85°C 25 60 μA Quiescent Supply Current in LP-Skip Mode (Note 3) IQ_LP-SKIP VALT_IN = 0V, VOUT > VOUT(TARGET), no load Only one buck phase is enabled 270 370 μA Two buck phases are enabled 380 480 Three buck phases are enabled 505 635 All buck phases are enabled 625 755 Quiescent Supply Current in Skip Mode (Note 3) IQ_SKIP VALT_IN = 0V, VOUT > VOUT(TARGET), no load Only one buck phase is enabled 300 405 μA Two buck phases are enabled 450 555 Three buck phases are enabled 620 750 All buck phases are enabled 780 910 INTERNAL BIAS SUPPLY VDD Regulator Voltage VDD 1.9 V VDD Undervoltage Lock- Out (UVLO) VDD_UVLO_F 1.55 V VL12, VL34 Regulator Voltage VLx 1.8 V VL12, VL34 Undervoltage Lock-Out (UVLO) VL_UVLO_F 1.55 V ALT_IN Switchover Threshold VSWO VALT_IN rising, 100mV hysteresis, VL and VDD input switches from SYS to ALT_IN above this threshold 2.7 2.8 2.9 V ALT_IN Valid Voltage Range VALT_IN VSWO 5.5 V ALT_IN Shutdown Supply Current IALT_IN_SHDN VCE = 0V, VALT_IN = 3.3V 0.2 μA MAX77542 16VIN/16A, Quad-Phase High-Efficiency Buck Converter www.analog.com Analog Devices | 9 |
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