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LP2950 데이터시트(PDF) 4 Page - ON Semiconductor |
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LP2950 데이터시트(HTML) 4 Page - ON Semiconductor |
4 / 16 page LP2950 http://onsemi.com 4 ELECTRICAL CHARACTERISTICS (continued) (Vin = VO + 1.0 V, IO = 100 µA, CO = 1.0 µF, TJ = 25°C [Note 1], unless otherwise noted.) Characteristic Unit Max Typ Min Symbol Line Regulation (Vin = VO(nom) +1.0 V to 30 V) [Note 2] Regline % LP2950C–XX/LP2951C/LP2951C–XX – 0.08 0.20 LP2950AC–XX/LP2951AC/LP2951AC–XX – 0.04 0.10 Load Regulation (IO = 100 µA to 100 mA) Regload % LP2950C–XX/LP2951C/LP2951C–XX – 0.13 0.20 LP2950AC–XX/LP2951AC/LP2951AC–XX – 0.05 0.10 Dropout Voltage VI – VO mV IO = 100 µA – 30 80 IO = 100 mA – 350 450 Supply Bias Current ICC IO = 100 µA – 93 120 µA IO = 100 mA – 4.0 12 mA Dropout Supply Bias Current (Vin = VO(nom) – 0.5 V, IO = 100 µA) [Note 2] ICCdropout – 110 170 µA Current Limit (VO Shorted to Ground) ILimit – 220 300 mA Thermal Regulation Regthermal – 0.05 0.20 %/W Output Noise Voltage (10 Hz to 100 kHz) [Note 3] Vn µVrms CL = 1.0 µF – 126 – CL = 100 µF – 56 – LP2951A/LP2951AC ONLY Reference Voltage (TJ = 25°C) Vref V LP2951C/LP2951C–XX 1.210 1.235 1.260 LP2951AC/LP2951AC–XX 1.220 1.235 1.250 Reference Voltage (TJ = – 40 to +125°C) Vref V LP2951C/LP2951C–XX 1.200 – 1.270 LP2951AC/LP2951AC–XX 1.200 – 1.260 Reference Voltage (TJ = – 40 to +125°C) Vref V IO = 100 µA to 100 mA, Vin = 23 to 30 V LP2951C/LP2951C–XX 1.185 – 1.285 LP2951AC/LP2951AC–XX 1.190 – 1.270 Feedback Pin Bias Current IFB – 15 40 nA ERROR COMPARATOR Output Leakage Current (VOH = 30 V) Ilkg – 0.01 1.0 µA Output Low Voltage (Vin = 4.5 V, IOL = 400 µA) VOL – 150 250 mV Upper Threshold Voltage (Vin = 6.0 V) Vthu 40 45 – mV Lower Threshold Voltage (Vin = 6.0 V) Vthl – 60 95 mV Hysteresis (Vin = 6.0 V) Vhy – 15 – mV SHUTDOWN INPUT Input Logic Voltage Vshtdn V Logic “0” (Regulator “On”) 0 – 0.7 Logic “1” (Regulator “Off”) 2.0 – 30 Shutdown Pin Input Current Ishtdn µA Vshtdn = 2.4 V – 35 50 Vshtdn = 30 V – 450 600 Regulator Output Current in Shutdown Mode Ioff – 3.0 10 µA (Vin = 30 V, Vshtdn = 2.0 V, VO = 0, Pin 6 Connected to Pin 7) NOTES: 1. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible. 2. VO(nom) is the part number voltage option. 3. Noise tests on the LP2951 are made with a 0.01 µF capacitor connected across Pins 7 and 1. |
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