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LDO51 Datasheet(PDF) 2 Page - STMicroelectronics |
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LDO51 Datasheet(HTML) 2 Page - STMicroelectronics |
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LDO_51 2/4 ELECTRICAL CHARACTERISTICS 3V < VIN < 5.5V, -55°C < TA < +125°C, VREF = 2.8V, 0.8µF < COUT < 1.2µF, 20mΩ < ESR < 0.6Ω. 100 µA < I LOAD < 80mA. Typical case : VIN = 4V, T = 25°C, IOUT = 40mA. Notes: 1. Above characteristics are given for 3V minimum input operating range voltage, but regulator is operational with 2.7V minimum input voltage. 2. All parameters are guaranteed with 170mV Dropout voltage. Parameter Symbol Test Condition Min Typ Max Unit Input Voltage Range (Note 1) VIN 3 5,5 V Output Voltage VOUT 2,8 V Output Voltage Accuracy -3 3 % Output current IOUT 0,1 80 mA PMOS Output Resistance RON 0,5 Ω Dropout Voltage ∆V DO ∆V OUT = 50mV, ILOAD = 80mA 50 mV (Note 2) 170 Quiescent current IQ ILOAD = 100µA30 50 µA ILOAD = 80mA 130 170 Power down mode quiescent current IQPDM Power down active 100 nA Power Supply Rejection Ratio PSRR f < 10KHz 50 60 dB f < 100KHz 40 50 Line Regulation Lir ILOAD = 80mA, VIN = 3V to 5.1V 36 mV Load Regulation Ldr 30 45 mV Line Transient Lirt ∆V IN = 300mV tRISE = tFALL = 10µs 1mV Load Transient Ldtr 10% to 90% and 90% to 10% of 80mA in 10 µs 1mV Output Noise Voltage en 100Hz 1,5 1KHz 550 100KHz 300 Output decoupling Capacitor COUT 1 µF Settling time From power down to active mode 25 µs Short Circuit Current Limit ISHORT 180 230 300 mA µV Hz ------------ nV Hz ------------ |
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