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AAT3242ITP-OI-T1 Datasheet(PDF) 4 Page - Advanced Analog Technology, Inc. |
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AAT3242ITP-OI-T1 Datasheet(HTML) 4 Page - Advanced Analog Technology, Inc. |
4 / 16 page AAT3242 300mA/150mA Dual CMOS LDO Linear Regulator 4 3242.2006.04.1.10 Electrical Characteristics1 VIN = VOUT(NOM) + 1.0V for VOUT options greater than 1.5V. VIN = 2.5V for VOUT ≤ 1.5V. IOUT = 1.0mA, COUT = 2.2µF, CIN = 1.0µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C. Symbol Description Conditions Min Typ Max Units LDO A; IOUT = 300mA VOUT Output Voltage Tolerance IOUT = 1mA TA = 25°C -1.5 1.5 % to 300mA TA = -40 to 85°C -2.5 2.5 VIN Input Voltage VOUT + VDO5 5.5 V VDO Dropout Voltage2, 3 IOUT = 300mA 400 600 mV ΔVOUT/ Line Regulation4 VIN = VOUT + 1 to 5.0 V 0.09 %/V VOUT*ΔVIN ΔVOUT(Line) Dynamic Line Regulation IOUT = 300mA, VIN = VOUT + 1 5.0 mV to VOUT + 2, TR/TF = 2µS ΔVOUT(Load) Dynamic Load Regulation IOUT = 1mA to 300mA, 60 mV TR <5µS VEN(L) Enable Threshold Low 0.6 V VEN(H) Enable Threshold High 1.5 V VPOK Power OK Trip Threshold VOUT Rising, TA = 25°C 90 94 98 % of VOUT VPOKHYS Power OK Hysteresis 1.0 % of VOUT VPOK(LO) Power OK Output Voltage Low ISINK = 1mA 0.4 V IPOK POK Output Leakage Current VPOK < 5.5V, VOUT in Regulation 1.0 µA IOUT Output Current VOUT > 1.2V 300 mA ISC Short-Circuit Current VOUT < 0.4V 600 mA IQ Ground Current VIN = 5V, No Load; EN A = VIN 70 125 µA ISD Shutdown Current VIN = 5V, EN A = 0V 1.0 µA 1kHz 65 PSRR Power Supply Rejection Ratio IOUT =1 0mA 10kHz 45 dB 1MHz 42 TSD Over-Temperature Shutdown 145 °C Threshold THYS Over-Temperature Shutdown 12 °C Hysteresis eN Output Noise eNBW = 300Hz to 50kHz 250 µVRMS TC Output Voltage Temperature 22 ppm/°C Coefficient 1. The AAT3242 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correlation with statistical process controls. 2. VDO is defined as VIN - VOUT when VOUT is 98% of nominal. 3. For VOUT < 2.1V, VDO = 2.5 - VOUT. 4. CIN = 10µF. 5. To calculate minimum input voltage, use the following equation: VIN(MIN) = VOUT(MAX) + VDO(MAX) as long as VIN ≥ 2.5V. |
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