Datasheet MAX1818 (Maxim) - 4

MAX1818 500mA Low-Dropout Linear Regulator in SOT23
Typical Operating Characteristics (continued)
(VIN = (VOUT + 500mV) or +2.5V, whichever is greater; SHDN = IN, CIN = 1μF, COUT = 3.3μF, TA = +25°C, unless otherwise noted.)
DROPOUT VOLTAGE OUTPUT VOLTAGE ACCURACY OUTPUT VOLTAGE ACCURACY vs. LOAD CURRENT vs. LOAD CURRENT vs. TEMPERATURE
180 3.0 3.0 VOUT = 3.3V 2.5 2.5 VOUT = 1.5V TO 5.0V ILOAD = 150mA 150 TA = +85°C 2.0 2.0 MAX1818 toc04 MAX1818 toc05 MAX1818 toc06 1.5 1.5 120 1.0 3.3V OUTPUT 1.0 0.5 2.5V OUTPUT 0.5 90 0 0 TA = +25°C -0.5 -0.5 60 -1.0 -1.0 DROPOUT VOLTAGE (mV) TA = -40°C -1.5 1.8V OUTPUT -1.5 30 -2.0 OUTPUT VOLTAGE ACCURACY (%) -2.0 OUTPUT VOLTAGE ACCURACY (%) -2.5 -2.5 0 -3.0 -3.0 0 0.1 0.2 0.3 0.4 0.5 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 -40 -15 10 35 60 85 LOAD CURRENT (A) LOAD CURRENT (A) TEMPERATURE (°C)
POWER-SUPPLY REJECTION RATIO vs. FREQUENCY LINE TRANSIENT LOAD-TRANSIENT RESPONSE
MAX1818 toc08 MAX1818 toc09 80 VIN = 3.3V 70 VOUT = 2.5V COUT = 3.3µF MAX1818 toc07 VOUT 60 IOUT 500mA VOUT = 3.3V 2.5V 10mV/div 50 RLOAD = 100Ω 100mA 40 PSRR (dB) 30 20 VIN 3.5V V 500mV/div OUT 20mV/div 10 0 0.01 0.1 1 10 100 1000 100µs/div 40µs/div FREQUENCY (kHz)
LOAD-TRANSIENT RESPONSE NEAR DROPOUT POWER-ON RESET
MAX1818 toc11 MAX1818 toc10 VPOK VIN = VOUT + 100mV VOUT = 3.3V 0 V OUT 100mV/div VOUT 2V/div 0 200mA I OUT VIN 0 0 10µs/div 10ms/div www.maximintegrated.com Maxim Integrated │ 4