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MAX8758 Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX8758 Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 20 page PARAMETER CONDITIONS MIN TYP MAX UNITS FREQ = GND 91 99 Oscillator Maximum Duty Cycle FREQ = IN 88 96 % FB Regulation Voltage 1.220 1.252 V FB Transconductance ΔI = 5µA at COMP 75 280 µS LX On-Resistance ILX = 200mA 200 m Ω LX Current Limit 65% duty cycle 2.0 3.0 A POSITIVE GATE DRIVER TIMING AND CONTROL SWITCHES SRC Input Voltage Range 28 V SRC Input Current MODE = DLP = CTL = LDO 250 µA DRN Input Current MODE = DLP = LDO, VDRN = 8V, VCTL = 0 250 µA SRC-to-GON Switch On-Resistance DLP = CTL = LDO 30 Ω DRN-to-GON Switch On-Resistance DLP = LDO, VCTL = 0 130 Ω THR-to-GON Voltage Gain VGON = 12V, VTHR = 1.2V 9.7 10.3 V/V OPERATIONAL AMPLIFIER SUPB Supply Range 4.5 13.0 V SUPB Supply Current Buffer configuration, VPOSB = 4V, no load 1.0 mA Input Offset Voltage VNEGB, VPOSB = VSUPB / 2 18 mV Input Common-Mode Voltage Range 0 VSUPB V IOUTB = 100µA VSUPB - 15 Output Voltage Swing High IOUTB = 5mA VSUPB - 150 mV IOUTB = -100µA 15 Output Voltage Swing Low IOUTB = -5mA 150 mV OUTB shorted to VSUPB/2, sourcing 75 Short-Circuit Current OUTB shorted to VSUPB/2, sinking 75 mA Step-Up Regulator with Switch Control and Operational Amplifier for TFT LCD _______________________________________________________________________________________ 5 ELECTRICAL CHARACTERISTICS (continued) (VIN = V SHDN = +3V, OUT = +10V, FREQ = GND, TA = -40°C to +85°C, unless otherwise noted.) (Note 2) Note 1: OUT and SUP can operate down to 4.5V. LDO will be out of regulation, but IC will function correctly. Note 2: -40°C specs are guaranteed by design, not production tested. |
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