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SI-8120JD-TL Datenblatt(PDF) 3 Page - Allegro MicroSystems |
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SI-8120JD-TL Datenblatt(HTML) 3 Page - Allegro MicroSystems |
3 / 10 page SI-8120JD Step-Down to 12.0 V, 1.5 A, DC/DC Converter www.allegromicro.com Switching Regulators 3 ELECTRICAL CHARACTERISTICS at T A = +25°C, VI = 24 V, IO = 0.5 A (unless otherwise noted). Limits Characteristic Symbol Test Conditions Min. Typ. Max. Units Output Voltage V O 11.76 12.0 12.24 V Ref. Volt. Temp. Coeff. a Vref — ±1.0 — mV/°C Output Short-Circuit Current I OM See note 1.6 — — A Efficiency η —88 — % Operating Frequency f — 125 — kHz Line Regulation ∆V O( ∆VI) V I = 18 V ~ 30 V, IO = 0.5 A — 60 130 mV Load Regulation ∆V O( ∆IO) V I = 24 V, IO = 0.2 A ~ 0.8 A — 10 40 mV Quiescent Current I IQ I O = 0 A — 7.0 — mA V CE = 0.3 V — — 200 µA Chip Enable Voltage V CE Converter turn-off voltage — — 0.5 V Soft-Start Current I SS V SS = 0 V — — -100 µA Typical values are given for circuit design information only. Note: Output short-circuit current is at point where output voltage has decreased 5% below V O(nom). SI-8120JD Test Circuit C1 = 220 µF/50 V C2 = 470 µF/25 V C3 = 0.47 µF/10 V L1 = 100 µH D1 = Sanken SFPB-66 |
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