Electronic Components Datasheet Search |
|
SPX2954S-5.0 Datasheet(PDF) 3 Page - Sipex Corporation |
|
SPX2954S-5.0 Datasheet(HTML) 3 Page - Sipex Corporation |
3 / 7 page 3 Rev. 3/6/03 SP2954 250mA Low Dropout Voltage Regulator © Copyright 2003 Sipex Corporation ELECTRICAL CHARACTERISTICS (Cont.) V IN=VO+1V, IL=100µA, CL=1µF ( NOTE 2), T A = 25°C, unless otherwise specified. NOTE 1: Output or reference voltage temperature coefficients defined as the worst case voltage change divided by the total temperature range. NOTE 2: Unless otherwise specified all limits guaranteed for T J = 25°C, VIN = 6V, IL = 100µA and CL = 1µF. Additional conditions for the 8-pin versions are feedback tied to 5V tap and output tied to output sense (V OUT = 5V) and VSHUTDOWN ≤ 0.8V. NOTE 3: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. NOTE 4: Line regulation for the SPX2954 is tested at I L = 1mA. NOTE 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 1V differential. At very low values of programmed output voltage, the minimum input supply voltage of 2V (2.3V over temperature) must be taken into account. NOTE 6: V REF ≤VOUT ≤ (VIN - 1V), 2.3 ≤VIN≤30V, 100µA≤IL≤ 250mA, TJ ≤ TJMAX. NOTE 7: Comparator thresholds are expressed in terms of a voltage differential at the feedback terminal below the nominal reference voltage measured at 6V input. To express these thresholds in terms of output voltage change, multiply by the error amplifier gain = V OUT/VREF = (R1 + R2)/R2. For example, at a programmed output voltage of 5V, the error output is guaranteed to go low when the output drops by 95 mV x 5V/1.235 = 384 mV. Thresholds remain constant as a percent of V OUT as VOUT is varied, with the dropout warning occurring at typically 5% below nominal, 7.5% guaranteed. NOTE 8: V SHUTDOWN ≥ 2V, VIN ≤ 30V, VOUT =0, Feedback pin tied to 5V/3.3V Tap. SPX2954A SPX2954 PARAMETER CONDITIONS MIN. TYP. MAX MIN. TYP. MAX. UNIT Error Comparator Output Leakage Current VOH = 30V 0.01 1 0.01 1 µA Output Low Voltage VIN = VO-0.5V, IOL = 400µA 150 250 150 250 mV Upper Threshold Voltage (NOTE 7) 40 60 40 60 mV Lower Threshold Voltage (NOTE 7) 75 95 75 95 mV Hysteresis (NOTE 7) 15 15 mV Shutdown Input logic Voltage Low (Regulator ON) 1.3 0.7 1.3 0.7 V High (Regulator OFF) 2.0 2.0 Shutdown Input Current VS = 2.4V 30 50 30 50 µA VS= 30V 400 800 400 800 Regulator Output Current (NOTE 8) 3 10 3 10 µA in Shutdown SPX2954 Block Diagram, 8 Lead 5V Version INPUT OUTPUT UNREGULATED DC SHUTDOWN GROUND ERROR ______ SENSE TO CMOS OR TTL REFERENCE ERROR DETECTION COMPARATOR ERROR AMPLIFIER 1.23V FROM CMOS OR TTL + + + + + + 60 mV 3 7 8 1 2 6 5 4 60kΩ 330kΩ 180kΩ . . 1µF _ _ FEEDBACK 5V TAP 5V |
Similar Part No. - SPX2954S-5.0 |
|
Similar Description - SPX2954S-5.0 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |