RT9173 RICHTEK [Richtek Technology Corporation], RT9173 Datasheet
RT9173
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RT9173 Summary of contents
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... General Description The RT9173/A regulator is designed to convert voltage supplies ranging from 1. into a desired output voltage which adjusted by two external resistors, voltage divider. The regulator is capable of sourcing or sinking up to 1.5A/3A of current while regulating an output voltage to within 2% or less. The RT9173/A, used in conjunction with series ...
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... Parameter Output Offset Voltage Load Regulation Input Voltage Range (DDR 1) Current In Shutdown Mode Short Circuit Protection RT9173 Current limit RT9173A Over Temperature Protection Thermal Shutdown Temperature T Thermal Shutdown Hysteresis Shutdown Function Shutdown Threshold Trigger www.richtek-ic.com.tw 2 Pin Function = 25°C, unless otherwise specified ...
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... TT = 470µF (Low ESR 47µF IN CNTL 2.5V 3.3V VIN VCNTL REFEN RT9173/A VOUT GND Fig.1 Output Voltage Tolerance, ∆V 3.3V A 2.5V VIN VCNTL REFEN RT9173/A VOUT GND Fig.2 Current in Shutdown Mode CNTL C IN VOUT C OUT R DUMMY V OUT OUT ...
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... Fig.3 Current Limit for High Side, I Power supply with current limit 3.3V 2.5V VIN VCNTL 1.25V REFEN RT9173/A VOUT GND Fig.4 Current Limit for Low Side, I 2.5V VIN 1.25V REFEN RT9173/A GND 0.2V 1.25V 0V V would be low if VREFEN < 0.2V OUT V would be high if VREFEN > 0.8V OUT R and C L OUT Time delay Fig ...
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... V = 3.3V CNTL V = 2.5V IN 400 60 80 100 120 ° 3. ≈ RT9173/A Sinking Current (Peak) vs. Temp -40 - Temperature ( C) ° Turn-On Threshold vs. Temp. -40 - ° Temperature ( CNTL V REFEN Force the output shorted to ground Time (5mS/Div) www ...
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... VCNTL minimize the thermal concern of the RT9173CS in the SOP-8 package. Layout Consideration The RT9173CS regulator is packaged in plastic SOP- 8 package. This small footprint package is unable to convectively dissipate the heat generated when the regulator is operating at high current levels. In order ...
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... Use vias to conduct the heat into the Use vias to conduct the heat into the buried or backside of PCB layer . buried or backside of PCB layer . RT9173CS (SOP-8) RT9173CS (SOP-8) The PCB heat sink copper area should be The PCB heat sink copper area should be solder-painted without masked. This solder-painted without masked. This approaches a “ ...
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... RT9173/A Package Information Symbol www.richtek-ic.com. MARK Dimensions In Millimeters Min Max 9.652 10.668 1.143 1.676 8.128 9.652 4.064 4.826 1.143 1.397 6.223 Ref. 7.620 Ref. 14.605 15.875 2.286 2.794 0.660 0.914 ...
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... SOP Plastic Package RT9173 Dimensions In Inches Min Max 0.189 0.197 0.150 0.157 0.053 0.069 0.013 0.020 0.016 0.050 0.047 0.053 0.004 ...
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... RT9173/A RICHTEK TECHNOLOGY CORP. Headquarter 6F, No. 35, Hsintai Road, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5510047 Fax: (8863)5537749 www.richtek-ic.com.tw 10 RICHTEK TECHNOLOGY CORP. Taipei Office (Marketing) 8F-1, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek-ic.com.tw ...