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MAX797MJE+ Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX797MJE+ Datasheet(HTML) 4 Page - Maxim Integrated Products |
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4 / 32 page  Step-Down Controllers with Synchronous Rectifier for CPU Power 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (continued) (V+ = 15V, GND = PGND = 0V, IVL = IREF = 0A, TA = -40°C to +85°C for MAX79_E, unless otherwise noted.) (Note 3) Note 3: All -40°C to +85°C specifications above are guaranteed by design. External resistor divider 0mV < (CSH - CSL) < 80mV, FB = VL, 4.5V < V+ < 30V, includes line and load regulation 0mV < (CSH - CSL) < 80mV, FB = VL, 6V < V+ < 30V, includes line and load regulation CONDITIONS V REF 6.0 Nominal Adjustable Output Voltage Range V 3.10 3.35 3.56 3.3V Output Voltage (CSL) V 5.0 30 Input Supply Range V 4.70 5.10 5.40 5V Output Voltage (CSL) UNITS MIN TYP MAX PARAMETER CSH - CSL, negative (CSH-CSL) = 0V 6V < V+ < 30V CSH - CSL, positive -40 -100 -160 Current-Limit Voltage V 2.40 2.60 Feedback Voltage %/V 0.04 0.06 Line Regulation mV 70 130 FB = CSH = CSL = 6V, VL switched over to CSL SHDN = 0V, V+ = 30V, CSL = 0V or 6V Rising edge, hysteresis = 25mV No external load (Note 1) 0µA < IREF < 100µA µA 110 V+ Off-State Leakage Current µA 110 V+ Shutdown Current V Rising edge, hysteresis = 15mV SHDN = 2V, 0mA < IVL < 25mA, 5.5V < V+ < 30V 4.2 4.7 VL/CSL Switchover Voltage V 2.43 2.505 2.57 Reference Output Voltage Falling edge, hysteresis = 15mV (MAX796) Falling edge, hysteresis = 20mV (MAX799) mV 50 Reference Load Regulation V 3.75 4.05 VL Fault Lockout Voltage V 4.7 5.3 VL Output Voltage 2.40 2.60 V -0.08 0.08 SECFB Regulation Setpoint SYNC = REF SYNC = 0V or 5V 89 91 kHz 210 320 Oscillator Sync Range kHz SYNC = REF 120 150 180 Oscillator Frequency ns 250 SYNC High Pulse Width ns 250 SYNC Low Pulse Width 250 300 350 mW 4.8 8.4 Quiescent Power Consumption High or low, BST - LX = 4.5V High or low SYNC = 0V or 5V Ω 7 DH On-Resistance Ω 7 DL On-Resistance % 93 96 Maximum Duty Cycle +3.3V and +5V STEP-DOWN CONTROLLERS FLYBACK/PWM CONTROLLER INTERNAL REGULATOR AND REFERENCE OSCILLATOR AND INPUTS/OUTPUTS |
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Similar Description - MAX797MJE+ |
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