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LDS3985M26R Datasheet(PDF) 4 Page - STMicroelectronics |
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LDS3985M26R Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 13 page LDS3985 SERIES 4/13 Table 5: Electrical Characteristics For LDS3985 (Tj = 25°C, VI = VO(NOM) +0.5V, CI = 1µF, CO = 2.2µF CBYP = 33nF, IO = 1mA, VINH = 1.4V, unless otherwise specified) Note 1: For VO(NOM) < 2V VI = 2.5V Note 2: For VO(NOM) =1.25V VI = 2.5V Note 3: Dropout voltage is the input-to-output voltage difference at which the output voltage is 100mV below its nominal value. This specifi- cation does not apply for input voltages below 2.5V. Note 4: Turn -on time is time measured between the enable input just exceeding VINH High Value and the output voltage just reaching 95% of its nominal value Note 5: Typical thermal protection hysteresis is 20°C Symbol Parameter Test Conditions Min. Typ. Max. Unit VI Operating Input Voltage 2.5 6 V VO Output Voltage < 2.5V IO = 1 mA -50 50 mV TJ= -40 to 125°C -75 75 VO Output Voltage ≥ 2.5V IO = 1 mA -2 2 % of VO(NOM) TJ= -40 to 125°C -3 3 ∆V O Line Regulation (Note 1) VI = VO(NOM) + 0.5 to 6 VTJ= -40 to 125°C -0.1 0.1 %/V VO = 4.7 to 5V -0.19 0.19 ∆V O Load Regulation IO = 1 mA to 300mA VO ≤ 2.5V TJ= -40 to 125°C 0.005 0.01 %/mA ∆V O Load Regulation IO = 1 mA to 300mA VO ≥ 2.5V TJ= -40 to 125°C 0.0008 0.004 %/mA ∆V O Output AC Line Regulation (Note 2) VI = VO(NOM) + 1 V, IO = 300mA, tR= tF = 30µs 5mVPP IQ Quiescent Current ON MODE: VINH = 1.24V IO = 0 85 µA IO = 0 TJ= -40 to 125°C 150 IO = 0 to 300mA 200 IO = 0 to 300mA TJ= -40 to 125°C 300 OFF MODE: VINH = 0.4V 0.003 TJ= -40 to 125°C 1.5 VDROP Dropout Voltage (Note 3) IO = 1mA 0.4 mV IO = 1mA TJ= -40 to 125°C 2 IO = 150mA 60 IO = 150mA TJ= -40 to 125°C 100 IO = 300mA 150 IO = 300mA TJ= -40 to 125°C 250 ISC Short Circuit Current RL = 0 600 mA SVR Supply Voltage Rejection VI = VO(NOM)+0.25V ± VRIPPLE = 0.1V, IO= 50mA For VO(NOM) < 2.5V, VI=2.55V f = 1KHz 55 dB f = 10KHz 50 IO(PK) Peak Output Current VO ≥ VO(NOM) - 5% 300 550 mA VINH Inhibit Input Logic Low VI = 2.5V to 6V TJ= -40 to 125°C 0.4 V Inhibit Input Logic High 1.4 IINH Inhibit Input Current VINH = 0.4V VI = 6V ±1 nA eN Output Noise Voltage BW = 10 Hz to 100 KHz CO = 2.2 µF30 µV RMS tON Turn On Time (Note 4) CBYP = 33 nF 240 µs TSHDN Thermal Shutdown Note 5 160 °C CO Output Capacitor Capacitance (Note 6) 2.2 22 µF ESR 5 5000 m Ω |
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