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RT9172N-32GM Datasheet(PDF) 5 Page - Richtek Technology Corporation |
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RT9172N-32GM Datasheet(HTML) 5 Page - Richtek Technology Corporation |
5 / 15 page RT9172 5 DS9172-14 March 2007 www.richtek.com Electrical Characteristics (Limits in standard typeface are for TA = 25°C, unless otherwise specified: VIN = VO(NOM) + 1.0V, IL = 10mA, COUT = 10 μF(Electrolytic), VEN = VIN) Parameter Symbol Test Conditions Min Typ Max Units Output Voltage Tolerance -1.5 0 +1.5 % Input Voltage Range VIN 2.25 -- 5.5 V Line Regulation ΔVLINE VOUT + 0.4V < VIN < 5.5V -- 0.35 1 % Note 1 -- 0.4 1 Note 2 -- 0.1 0.4 Load Regulation ΔVLOAD Note 3 -- 0.1 0.4 % Dropout Voltage VDROP IL = 3A -- 400 700 mV Quiescent Current IQ -- 1.2 3 mA Shutdown Supply Current IGSD VEN = 0V -- 0.5 5 μA Peak Output Current IO(PEAK) 3.5 5 -- A Short Circuit Protection Current Limit ILIMIT 3.5 5 -- A Over Temperature Protection Shutdown Threshold TSD Guaranteed by design -- 170 -- °C Thermal Shutdown Hysteresis Guaranteed by design -- 10 -- °C Shutdown Function Output = High 1.2 VIN -- EN Pin Shutdown Threshold VEN Output = Low -- 0 0.4 V EN Input Current VEN = VIN -- 0.1 -- nA FLG Pin Leakage Current ILEAKAGE -- 1 -- nA FLG Pin Sink Current VFLG = 0.5V 2 -- -- mA Note 1. RT9172-CX, RT9172F-XXCX5, 10mA < IL < 3A Note 2. RT9172S-XXCX5, RT9172N-XXCX5, 10mA < IL < 3A Note 3. RT9172CS, 10mA < IL < 1.5A Note 4. θJA is measured in the natural convection at TA = 25°C on a low effective thermal conductivity test board of JEDEC 51-3 thermal measurement standard. The case point of θJC is on the center of the exposed pad. The pad size is 125mm2 on TO-263 packages. |
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