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| eorex Features * Maximum Output Current: 250mA * Highly Accurate: Output Voltage2% * Low Power Consumption: 2uA Typ. * Small input/output differential: 0.4V at 160mA (VOUT=3.3V) 0.12V at 100mA (VOUT=5.0V) * SOT-23 Package EP1201 250mA Ultra Low Dropout Linear Regulator Description The EP1201 series is a group of positive voltage output, three-pin regulators, that provides a high current even when the input/output voltage differential is small. Low power consumption and high accuracy is achieved through CMOS and programmable fuse technologies. The EP1201 consists of a high-precision voltage reference, an error correction circuit, and a current limited output driver. Transient responses to load variations have improved in comparison to the existing series. SOT-23(150mW) package is available. Applications * Battery Powered Equipment * Palmtops * Portable Cameras and Video Recorders * Reference Voltage Sources Typical Application Jul. 2006 1/8 www.eorex.com eorex Pin Assignment EP1201 Ordering Information Pin Description Pin 1 2 3 Name GND VOUT VIN Ground Output Voltage Input Voltage Function Absolute Maximum Rating Symbol VIN IOUT VOUT PD TOPR TSTG JA Input Voltage Output Current Output Voltage Continuous Total Power Dissipation Operating Ambient Temperature Range Storage Temperature Range Thermal Resistance (Junction-to-Ambient) SOT-23 Item Rating 12 500 GND-0.3~ VIN+0.3 150 -30 ~ +80 -40 ~ +125 250 Units V mA V mW C C C/W Jul. 2006 2/8 www.eorex.com eorex Electrical Characteristics Symbol (Note 1) EP1201 Parameter Output Voltage EP1201-18 EP1201-33 EP1201-18 EP1201-33 EP1201-18 EP1201-33 EP1201-18 EP1201-33 EP1201-18 EP1201-33 EP1201-18 EP1201-33 EP1201-18 EP1201-33 EP1201-18 EP1201-33 Conditions VIN=2.8V, IOUT=40mA VIN=4.3V, IOUT=40mA VIN=2.8V, VOUT(E)1.62V VIN=4.3V, VOUT(E)2.97V IOUT=40mA IOUT=80mA IOUT=80mA IOUT=160mA IOUT=40mA, 2.8VVIN10V IOUT=40mA, 4.3VVIN10V VIN=2.8V, 1mA IOUT 40mA VIN=4.3V, 1mA IOUT 80mA VIN=2.8V VIN=4.3V Min. 1.764 3.234 80 Typ. 1.800 3.300 Max. 1.836 3.366 Units V VOUT(E) IOUT(max) Maximum Output Current VD1 VD2 VD1 VD2 Line Regulation (VOUT/VINVOUT) mA 150 200 450 200 450 0.2 0.2 10 20 3.0 2.0 1.8 1.8 370 710 360 700 0.3 %/V 0.3 30 mV 50 5.0 5.0 10 10 100 ppm/C 100 A V mV VD Dropout Voltage (Note 2) REGLINE REGLOAD Load Regulation (VOUT) IS VIN Supply Current Input Voltage Output Voltage Temperature Characteristics (VOUT/TOPRVOUT) IOUT=40mA, -40CTOPR85C IOUT=40mA, -40CTOPR85C Note 1:VOUT(E) = Effective output voltage (i.e. the output voltage when "VOUT+1.0V" is provided while maintaining a certain IOUT value. (Note 3) (Note 4) Note 2:VD = { VIN1 - VOUT1 } Note 3:The input voltage at the time VOUT1 is output input voltage has been gradually reduced. Note 4: A voltage equal to 98% of the output voltage when a stabilized (VOUT+ 1.0V) is input. Jul. 2006 3/8 www.eorex.com Jul. 2006 Output Voltage (V) Output Voltage (V) Input/Output Voltage Differential (V) Output Voltage (V) eorex Supply Current (A) Typical Performance Characteristics 4/8 Supply Current (A) EP1201 www.eorex.com eorex Typical Performance Characteristics (Continued) EP1201 Jul. 2006 5/8 www.eorex.com eorex Typical Performance Characteristics (Continued) EP1201 Functional Block Diagram Functional Description A minimum of 10F capacitor must be connected from VOUT to ground to insure stability. Typically a large storage capacitor is connected from VIN to ground to ensure that the input voltage does not sag below the minimum dropout voltage during the load transient response. This pin must always be 0.7V higher than VOUT in order for the device to regulate properly. Jul. 2006 6/8 www.eorex.com eorex Marking Information EP1201 Appendix Identification Code BB BC BD BE BF Part Number EP1201 EP1201 EP1201 EP1201 EP1201 VOUT 1.5V 1.8V 2.5V 2.8V 3.3V Date Code Convention Year 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Y Mark Year Mark Week Mark Week Mark Week W Mark Week Mark Week Mark Week Mark 5 A 1 1 11 b 21 m 31 x 41 H 51 T 6 B 2 2 12 c 22 n 32 y 42 J 52 U 7 C 3 3 13 d 23 p 33 z 43 K 8 D 4 4 14 e 24 q 34 A 44 L 9 E 5 5 15 f 25 r 35 B 45 M 0 F 6 6 16 g 26 s 36 C 46 N 1 G 7 7 17 h 27 t 37 D 47 P 2 H 8 8 18 i 28 u 38 E 48 Q 3 J 9 9 19 j 29 v 39 F 49 R 4 K 10 a 20 k 30 w 40 G 50 S 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Jul. 2006 7/8 www.eorex.com eorex Package Description SOT-23 EP1201 DIM A A1 A2 b c D E H e e1 L L1 1 2 MIN. 1.05 0.05 1.00 0.25 0.08 2.70 1.50 2.60 1.80 0.85 0.50 0.30 0 3 6 MILLIMETERS NOM. - - 1.10 - - 2.90 1.60 2.80 1.90 0.95 0.60 - 5 5 8 MAX. 1.35 0.15 1.20 0.50 0.20 3.00 1.70 3.00 2.00 1.05 0.70 0.60 10 7 10 MIN. 0.041 0.002 0.039 0.010 0.003 0.106 0.059 0.102 0.071 0.033 0.020 0.012 0 3 6 INCHES NOM. - - 0.043 - - 0.114 0.063 0.110 0.075 0.037 0.024 - 5 5 8 MAX. 0.053 0.006 0.047 0.020 0.008 0.118 0.067 0.118 0.079 0.041 0.028 0.024 10 7 10 Jul. 2006 8/8 www.eorex.com |
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