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LP2951A Datasheet(PDF) 2 Page - Semtech Corporation |
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LP2951A Datasheet(HTML) 2 Page - Semtech Corporation |
2 / 5 page LP2951A © 1998 SEMTECH CORP. 150mA ADJUSTABLE VOLTAGE REGULATOR March 17, 1998 652 MITCHELL ROAD NEWBURY PARK CA 91320 2 NOTES: (1) Temperature coefficient is defined as the worst case voltage change divided by total temperature range. ELECTRICAL CHARACTERISTICS Unless specified, limits are over operating temperature range (T J = TA), VIN = VOUT(NOM) + 1V, IL = 100µA, CL = 1µF Parameter Symbol Conditions Min Typ Max Units Output Voltage V OUT T J=25°C, IL = 100µA 4.975 5.000 5.025 V Temp Coefficient (1) T C 0°C ≤ T J ≤ =70°C 20 120 ppm/°C Line Regulation REG (LINE) 6V ≤ V IN =≤=30V 0.1 0.5 % Load Regulation REG (LOAD) 100µA ≤ I L =≤=150mA 0.1 0.4 % Dropout Voltage V D I L ===100µA 80 150 mV I L ===150mA 380 600 Ground Current I GND I L ===100µA 120 160 µA I L ===150mA 814 mA Dropout Ground Current I GND(D) V IN = 4.5V, IL ===100µA 110 250 µA Current Limit I CL V OUT = 0 200 250 mA Reference Voltage V REF V REF ≤ VOUT ≤ (VIN - 1V), TJ = =25°C, 100µA ≤ I L =≤=100mA 1.22 1.235 1.25 V Feedback Bias Current I FB 20 60 nA Error Comparator Output High Leakage Current V OH = 30V 2 µA Output Low Voltage V IN = 4.5V, IOL = 400µA 150 400 mV Threshold Voltage Upper 25 60 mV Lower 75 140 Hysteresis 15 mV Shutdown Input Input Logic Voltage V SD Low 0.6 V High 2.0 V Input Current I SD V SHUTDOWN = 2.4V 100 µA V SHUTDOWN = 30V 750 Regulator Shutdown Output Current I O(SD) V SHUTDOWN ≥ 2V, VIN ≤ 30V, V OUT = 0, Feedback pin to Tap 5V 20 µA |
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