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LP3856ES-5.0 Datasheet(PDF) 4 Page - Texas Instruments |
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LP3856ES-5.0 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 25 page  LP3853, LP3856 SNVS173G – FEBRUARY 2003 – REVISED APRIL 2013 www.ti.com Electrical Characteristics LP3853/LP3856 Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range. Unless otherwise specified: VIN = VO(NOM) + 1V, IL = 10 mA, COUT = 10µF, VSD = 2V. LP3853/6 (2) Symbol Parameter Conditions Typ (1) Units Min Max Output Voltage Tolerance VOUT +1V ≤ VIN ≤ 7.0V -1.5 +1.5 VO 0 % (3) 10 mA ≤ IL ≤ 3A -3.0 +3.0 Output Voltage Line Regulation 0.02 ΔV OL VOUT +1V ≤ VIN ≤ 7.0V % (3) 0.06 Output Voltage Load Regulation 0.08 ΔVO/ ΔIOUT 10 mA ≤ IL ≤ 3A % (3) 0.14 50 IL = 300 mA 39 65 Dropout Voltage VIN - VOUT mV (4) 450 IL = 3A 390 600 9 IL = 300 mA 4 10 Ground Pin Current In Normal IGND mA Operation Mode 9 IL = 3A 4 10 VSD ≤ 0.3V 0.01 10 Ground Pin Current In Shutdown IGND µA Mode -40°C ≤ TJ ≤ 85°C 50 IO(PK) Peak Output Current VO ≥ VO(NOM) - 4% 4.5 A Short Circuit Protection ISC Short Circuit Current 6 A Shutdown Input VSDT Rising from 0.3V until 1.3 2 Output = ON VSDT Shutdown Threshold V VSDT Falling from 2.0V until 1.3 0.3 Output = OFF TdOFF Turn-off delay IL = 3A 20 µs TdON Turn-on delay IL = 3A 25 µs ISD SD Input Current VSD = VIN 1 nA Error Flag VT Threshold (5) 10 5 16 % VTH Threshold Hysteresis (5) 5 2 8 % VEF(Sat) Error Flag Saturation Isink = 100µA 0.02 0.1 V Td Flag Reset Delay 1 µs Ilk Error Flag Pin Leakage Current 1 nA Imax Error Flag Pin Sink Current VError = 0.5V 1 mA (1) Typical numbers are at 25°C and represent the most likely parametric norm. (2) Limits are ensured by testing, design, or statistical correlation. (3) Output voltage line regulation is defined as the change in output voltage from the nominal value due to change in the input line voltage. Output voltage load regulation is defined as the change in output voltage from the nominal value due to change in load current. The line and load regulation specification contains only the typical number. However, the limits for line and load regulation are included in the output voltage tolerance specification. (4) Dropout voltage is defined as the minimum input to output differential voltage at which the output drops 2% below the nominal value. Dropout voltage specification applies only to output voltages of 2.5V and above. For output voltages below 2.5V, the drop-out voltage is nothing but the input to output differential, since the minimum input voltage is 2.5V. (5) Error Flag threshold and hysteresis are specified as percentage of regulated output voltage. See Application Hints. 4 Submit Documentation Feedback Copyright © 2003–2013, Texas Instruments Incorporated Product Folder Links: LP3853 LP3856 |
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