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LR1117A Datasheet(PDF) 3 Page - Leshan Radio Company |
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LR1117A Datasheet(HTML) 3 Page - Leshan Radio Company |
3 / 9 page Electrical Characteristics Operating Conditions: VIN ≤ 7V, TJ = 25°C unless otherwise specified. The • denotes specifications which apply over the specified operating temperature range. Notes: 1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. 2. Line and load regulation are guaranteed up to the maximum power dissipation (18W). Power dissipation is determined by input/output differential and the output current. Guaranteed maximum output power will not be available over the full input/ output voltage range. 3. LR1117A only. 4. Output current must be limited to meet the absolute maximum ratings of the part. Parameter Conditions Min. Typ. Max. Units Reference Voltage3 1.5V ≤ (V IN – VOUT) ≤ 7V, 10mA ≤ I OUT ≤ 1A • 1.225 (-2%) 1.250 1.275 (+2%) V Output Voltage4 10mA ≤ I OUT ≤ 1A LR1117A-1.8, 3.3V ≤ V IN ≤ 8.8V LR1117A-2.5, 4V ≤ V IN ≤ 9.5V LR1117A-2.85, 4.35V ≤ V IN ≤ 9.85V LR1117A-3.3, 4.8V ≤ V IN ≤ 10.3V LR1117A-5, 6.5V ≤ V IN ≤ 12V • • • • • 1.764 2.450 2.793 3.234 4.900 1.8 2.5 2.85 3.3 5.0 1.836 2.550 2.907 3.366 5.100 V V V V V Line Regulation1,2 (VOUT + 1.5V) ≤ VIN ≤ 12V, IOUT = 10mA • 0.005 0.2 % Load Regulation1,2 (VIN – VOUT) = 2V, 10mA ≤ IOUT ≤ 1A • 0.05 0.5 % Dropout Voltage ∆V REF = 1%, IOUT = 1A • 1.100 1.200 V Current Limit (VIN – VOUT) = 2V • 1.1 1.5 A Adjust Pin Current3 • 35 120 µA Adjust Pin Current Change3,4 1.5V ≤ (V IN – VOUT) ≤ 7V, 10mA ≤ I OUT ≤ 1A • 0.2 5 µA Minimum Load Current 1.5V ≤ (V IN – VOUT) ≤ 15V • 10 mA Quiescent Current VIN = VOUT + 1.25V • 413 mA Ripple Rejection f = 120Hz, COUT = 22µF Tantalum, (VIN – VOUT) = 3V, IOUT = 1A 60 72 dB Thermal Regulation TA = 25°C, 30ms pulse 0.004 0.02 %/W Temperature Stability • 0.5 % Long-Term Stability TA = 125°C, 1000hrs. 0.03 1.0 % RMS Output Noise (% of VOUT) TA = 25°C, 10Hz ≤ f ≤ 10kHz 0.003 % Thermal Resistance, Junction to Case SOT-223 15 °C/W TO-252, TO-220 3 °C/W Thermal Shutdown Junction Temperature 155 °C Thermal Shutdown Hysteresis 10 °C 3/9 LESHAN RADIO COMPANY, LTD. LR1117A |
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