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SC1532CS Datasheet(PDF) 3 Page - Semtech Corporation |
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SC1532CS Datasheet(HTML) 3 Page - Semtech Corporation |
3 / 9 page © 2000 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 400mA SmartLDO TM with Internal Pass MOSFET SC1532 January 3, 2000 3 NOTES: (1) Guaranteed by design. (2) Recommended source impedance for 5V supply: ≤ 0.125Ω. This will ensure clean transitions between supplies with no “chattering” (see Applications Information). (3) Refer to block diagram. ELECTRICAL CHARACTERISTICS (Cont.) Unless specified, T A = 25°C, VIN1 = 5V, VIN2 = 3.3V, IO = 400mA, CIN1 = 4.7uF, CIN2 = 4.7uF, CO = 4.7uF, Cp=1nF. Values in bold apply over full operating temperature range. Parameter Symbol Test Conditions MIN TYP MAX Units VO LDO Voltage Accuracy VO I O = 20mA -1 +1 % 4.3V ≤ VIN1 ≤ 5.5V, 0mA ≤ I O ≤ 400mA (1) -2 +2 3.90V ≤ VIN1 ≤ 4.3V, VIN2 = 3.3V, 0mA ≤ I O ≤ 400mA (1) 3.000 V VIN2 Pass Device On Resis- R DS(ON) VIN1 < 3.9V, 0mA ≤ I O ≤ 400mA 360 500 m Ω tance (Aux. NMOS) (1)(3) Line Regulation REG (LINE) VIN1 = 4.3V to 5.5V 0.3 0.6 % 0.7 Load Regulation REG (LOAD) I O = 20mA to 400mA 0.3 0.6 % 0.7 Current Limit (LDO) Output Current I LIM VIN1 = 5V, VIN2 = 0V, VO = 0V 600 975 1200 mA 1400 Over Temperature Protection High Trip Level T HI VIN1=5V 175 ºC Hysteresis T HYS VIN1=5V 10 ºC |
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