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MAX8805W Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX8805W Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 22 page 600mA/650mA PWM Step-Down Converters in 2mm x 2mm WLP for WCDMA PA Power _______________________________________________________________________________________ 3 PARAMETER CONDITIONS MIN TYP MAX UNITS MAX8805Y/MAX8805Z 0.44 x VIN2 0.465 x VIN2 0.48 x VIN2 REFIN Dual Mode™ Threshold VREFIN rising, 50mV hysteresis MAX8805W/MAX8805X 0.36 x VIN2 0.372 x VIN2 0.39 x VIN2 V LX p-channel MOSFET switch, ILX = -40mA 0.18 0.6 On-Resistance n-channel MOSFET rectifier, ILX = 40mA 0.15 0.6 Ω TA = +25°C 0.1 5 LX Leakage Current VIN1A = VIN1B = VIN2 = 5.5V, VLX = 0V TA = +85°C 1 µA MAX8805Y/MAX8805Z 0.7 0.9 1.1 p-Channel MOSFET Peak Current Limit VLX = 0V MAX8805W/MAX8805X 0.75 0.95 1.15 A MAX8805Y/MAX8805Z 0.5 0.7 0.9 n-Channel MOSFET Valley Current Limit MAX8805W/MAX8805X 0.55 0.75 0.95 A MAX8805Y/MAX8805Z 0.1 Minimum On- and Off-Times MAX8805W/MAX8805X 0.07 µs Power-Up Delay From PA_EN rising to LX rising 150 250 µs BYPASS TA = +25 °C 0.060 0.1 On-Resistance p-channel MOSFET bypass, IOUT = -90mA TA = +85 °C 0.1 Ω Bypass Current Limit VPA = 0V 0.8 1.2 1.8 A MAX8805Y/MAX8805Z 0.7 0.9 1.1 Step-Down Current Limit in Bypass VLX = 0V MAX8805W/MAX8805X 0.75 0.95 1.15 A MAX8805Y/MAX8805Z 1.5 2.1 2.9 Total Bypass Current Limit VLX = VPA = 0V MAX8805W/MAX8805X 1.55 2.15 2.95 A TA = +25 °C 0.01 10 Bypass Off-Leakage Current VIN1A = VIN1B = VIN2 = 5.5V, VPAA = VPAB = 0V TA = +85 °C1 µA LDO1 MAX8805_EWEAA+T 1.746 1.8 1.854 MAX8805_EWEBC+T 2.425 2.5 2.575 MAX8805_EWECC+T 2.619 2.7 2.781 MAX8805_EWEDD+T 2.716 2.8 2.884 MAX8805_EWEEE+T 2.765 2.85 2.936 Output Voltage VLDO1 VIN2 = 5.5V, ILDO1 = 1mA; VIN2 = 3.4V, ILDO1 = 100mA MAX8805_EWEGG+T 2.910 3.0 3.090 V Output Current 200 mA Current Limit VLDO1 = 0V 250 550 750 mA Dropout Voltage ILDO1 = 100mA, TA = +25 °C (VLDO1 ≥ 2.5V) 70 200 mV Line Regulation VIN2 stepped from 3.5V to 5.5V, ILDO1 = 100mA 2.4 mV Load Regulation ILDO1 stepped from 50µA to 200mA 25 mV Power-Supply Rejection 10Hz to 10kHz, CLDO1 = 1µF, ILDO1 = 30mA 70 dB ELECTRICAL CHARACTERISTICS (continued) (VIN1A = VIN1B = VIN2 = VPA_EN = VEN1 = VEN2 = 3.6V, VHP = 0V, VREFIN = 0.9V (MAX8805Y/MAX8805Z), VREFIN = 0.72V (MAX8805W/MAX8805X), TA = -40°C to +85°C. Typical values are at TA =+25°C, unless otherwise noted.) (Note 1) |
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