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SPI-8001TW-TL 데이터시트(PDF) 3 Page - Allegro MicroSystems |
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SPI-8001TW-TL 데이터시트(HTML) 3 Page - Allegro MicroSystems |
3 / 10 page SPI-8001TW Dual 1.5 A, DC/DC Step-Down Converter www.allegromicro.com Switching Regulators 3 ELECTRICAL CHARACTERISTICS at T A = +25°C, VI = VCC = 15 V (unless otherwise noted). Limits Characteristic Symbol Test Conditions Min. Typ. Max. Units Internal Reference Voltage V ref V I = 10 V, VO = 1 V, IO = 0.1 A 0.996 1.006 1.016 V Ref. Volt. Temp. Coeff. a Vref V I = 10 V, VO = 1 V, IO = 0.1 A — ±0.1 — mV/°C Output Short-Circuit Current I OM See note 1.6 — — A Efficiency η V O = 5 V, IO = 0.5 A, II includes ICC —80 — % V CC = 5 V, VO = 5 V, IO = 0.5 A, — 83 — % I I does not include ICC Operating Frequency f V O = 5 V, IO = 0.5 A — 250 — kHz Line Regulation ∆V O( ∆VI) V I = VCC = 10 V ~ 20 V, VO = 5 V, IO = 1 A — 30 60 mV Load Regulation ∆V O( ∆IO) V O = 5 V, IO = 0.2 A ~ 1.5 A — 10 40 mV Supply Current I CC I O = 0 A — 8.5 — mA Quiescent Current I IQ V CC = 5 V, IO = 0 A, VO ≤ 12 V — 4.0 — mA V CE = 0 V or open — — 1.0 µA I CCQ V CE = 0 V or open — — 1.0 µA Chip Enable Voltage V CEH 2.0 — — V V CEL — — 0.8 V Chip Enable Input Current I CE V CE = 20 V — 95 — µA Soft-Start Voltage V SS Converter turn-off voltage — — 0.5 V Soft-Start Current I SS V SS = 0 V — -60 -80 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). Test Circuit |
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