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SI-3121N Fiches technique(PDF) 3 Page - Allegro MicroSystems |
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SI-3121N Fiches technique(HTML) 3 Page - Allegro MicroSystems |
3 / 10 page SI-3018LSA LOW-VOLTAGE, HIGH-CURRENT 1.8 V LINEAR REGULATOR www.allegromicro.com 3 ELECTRICAL CHARACTERISTICS at T A = +25°C, VI = VS = 3.3 V, VE = 2.0 V (unless otherwise noted). Limits Characteristic Symbol Test Conditions Min. Typ. Max. Units Output Voltage V O I O = 500 mA 1.764 1.800 1.836 V V OQ V E = 0 V, Output Off — — 0.5 V Output Volt. Temp. Coeff. a VO I O = 5 mA, 0°C ≤ TJ ≤ 100°C— ±0.3 — mV/ °C Overcurrent Limit I OM V O = 95% of VO at IO = 500 mA 1.2 1.5 — A Line Regulation ∆V O( ∆VI) 3.1 V ≤ V I = VS ≤ 3.5 V, IO = 300 mA — 2.0 10 mV Load Regulation ∆V O( ∆IO) 0 ≤ I O ≤ 1 A — 10 20 mV Dropout Voltage V Imin - VO I O ≤ 1 A — 0.55 1.2 V Ground Terminal Current I GND I O = 0 mA — 1.7 2.5 mA I Q V E = 0 V, IO = 0 mA — — 1.0 µA Rejection Ratio PSRR 100 Hz ≤ f ≤ 120 Hz — 60 — dB ENABLE Input Voltage V EH Output On 2.0 — — V V EL Output Off — — 0.8 V ENABLE Input Current I EH V E = 2 V, Output On — 30 80 µA I EL V E = 0 V, Output Off — 0 -5.0 µA Thermal Protection Temp. T J 135 150 — °C Thermal Resistance RθJL To terminals 7 and 8 — 36 — °C/W Typical values are at T A = +25°C and are given for circuit design information only. |
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