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LDO53 Scheda tecnica(PDF) 2 Page - STMicroelectronics |
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LDO53 Scheda tecnica(HTML) 2 Page - STMicroelectronics |
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2 / 4 page ![]() LDO_53 2/4 ELECTRICAL CHARACTERISTICS 3V < VIN < 5.5V, -30°C < T < +85°C, VREF = 2.8V, 0.8µF < COUT < 1.2µF, 20mΩ < ESR < 0.6Ω. 100 µA < I LOAD < 40mA. Typical case : VIN = 4V, T = 25°C, IOUT = 20mA. 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 40 mA PMOS Output Resistance RON 0,4 Ω Dropout Voltage ∆V DO ∆V OUT = 50mV, ILOAD = 40mA 50 mV (Note 2) 170 Quiescent current IQ ILOAD = 100µA20 30 µA ILOAD = 40mA 100 120 Power down mode quiescent current IQPDN Power down active 1 µA Power Supply Rejection Ratio PSRR DC 50 55 dB f < 10KHz 45 50 Load Regulation Ldr 15 25 mV Line Regulation Lir ILOAD = 40mA, VIN = 3V to 5.1V, VOUT = 2.8V 23 mV Line Transcient Lirt VOUT = 2.8V, IOUT = 40mA, ∆V IN = 300mV tRISE = tFALL = 10µs 3mV Load Transcient Ldtr VOUT = 2.8V, tRISE = tFALL = 10µs 100 µA < I LOAD < 40mA 3mV Recovery time 5 6 µs Output decoupling capacitor COUT 1 µF Settling time (from power down to active mode) VOUT = 2.8V, COUT = 1µF20 50 µs Short Circuit Current Limit ISHORT 200 mA |
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