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MAX1818EUT50 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX1818EUT50 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 9 page 500mA Low-Dropout Linear Regulator in SOT23 _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VIN = VOUT + 500mV or VIN = +2.5V, whichever is greater; SHDN = IN, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3) Note 3: All devices are 100% production tested at TA = +25 °C. Limits over the operating temperature range are guaranteed by design. Note 4: The Dropout Voltage is defined as VIN - VOUT, when VOUT is 100mV below the value of VOUT measured for VIN = VOUT(NOM) + 500mV. Since the minimum input voltage is 2.5V, this specification is only meaningful when VOUT(NOM) > 2.5V. For VOUT(NOM) between 2.5V and 3.5V, use the following equations: Typical Dropout = -93mV/V ✕ VOUT(NOM) + 445mV; Guaranteed Maximum Dropout = -137mV/V ✕ VOUT(NOM) +7004mV. For VOUT(NOM) > 3.5V, Typical Dropout = 120mV; Maximum Dropout = 220mV. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Load Regulation ∆VLDR IOUT = 1mA to 500mA 0.4 1.0 % Output Voltage Noise 10Hz to 1MHz, COUT = 3.3µF (ESR < 0.1 Ω) 115 µVRMS SHUTDOWN Shutdown Supply Current IOFF SHDN = GND, VIN = 5.5V 0.1 15 µA VIH 2.5V < VIN < 5.5V 1.6 SHDN Input Threshold VIL 2.5V < VIN < 5.5V 0.6 V SHDN = IN or GND, TA = +25°C1 25 SHDN Input Bias Current ISHDN TA = +85°C5 nA POK OUTPUT POK Output Low Voltage VOL POK sinking 1mA 0.01 0.1 V Operating Voltage Range for Valid POK POK sinking 100µA 1.0 5.5 V POK = 5.5V, TA = +25°C1 25 POK Output High Leakage Current TA = +85°C5 nA POK Threshold Rising edge, referred to VOUT(NOMINAL) 90 93 96 % THERMAL PROTECTION Thermal Shutdown Temperature TSHDN 170 °C Thermal Shutdown Hysteresis ∆TSHDN 20 °C Typical Operating Characteristics (VIN = (VOUT + 500mV) or +2.5V, whichever is greater; SHDN = IN, CIN = 1µF, COUT = 3.3µF, TA = +25°C, unless otherwise noted.) 0 50 25 125 100 75 150 175 225 200 250 0 1.0 1.5 0.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 GROUND PIN CURRENT vs. INPUT VOLTAGE INPUT VOLTAGE (V) ILOAD = 150mA 3.3V OUTPUT 2.5V OUTPUT 1.8V OUTPUT 40 70 55 85 130 145 115 100 160 0 0.2 0.3 0.4 0.5 0.1 0.6 0.7 0.8 0.9 1.0 LOAD CURRENT (A) GROUND PIN CURRENT vs. LOAD CURRENT 3.3V OUTPUT 2.5V OUTPUT 1.8V OUTPUT 110 130 120 150 140 160 170 -40 10 -15 35 60 85 TEMPERATURE ( °C) GROUND PIN CURRENT vs. TEMPERATURE 1.5V OUTPUT 5.0V OUTPUT ILOAD = 150mA |
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