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SC4620 Datasheet(PDF) 5 Page - Semtech Corporation |
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SC4620 Datasheet(HTML) 5 Page - Semtech Corporation |
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5 / 19 page  5 2008 Semtech Corp. www.semtech.com SC4620 POWER MANAGEMENT Electrical Characteristics (Cont.) Unless otherwise specified, V IN= VCC=SYNC/EN=3.3V, ROSC=51.1KΩ, RISET=27.4KΩ, TA = -40°C to 85°C. Parameter Symbol Conditions Min Typ Max Units Error Amplifier (Cont.) Output Voltage Low, COMP FB = 0.6V, I COMP = 1mA 0.1 0.25 V Feedback Voltage V FB 0.4925 0.502 0.5075 V 0 °C to 70 °C 0.497 0.502 0.507 V Vcc = 2.3V to 5.5V -0.18 +0.06 +0.18 %/V Input Bias Current(1) I FB FB=V REF 300 nA Power Switches High-Side P-MOSFET R DSH(on) V IN=VCC=5V, ISOURCE = 1A, TA=TJ=25 °C 74 100 mΩ Low Side N-MOSFET R DSL(on) V IN=VCC=5V, ISINK = 1A, TA=TJ=25 °C 47 85 mΩ Power Good PGood Voltage Low V PGL I PGOOD = 1mA 0.2 V PGood Leakage Current I PGOOD PGOOD = 5V 1 µ A PGood Delay Time(1) T D Vout rising or Vout falling 1024 clks PGood High Window With respect to nominal output, T A=TJ=25 °C +8 +10 +15 % Note: (1) Guaranteed by design. |
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