Electronic Components Datasheet Search |
|
LP2950 Datasheet(PDF) 3 Page - Sipex Corporation |
|
LP2950 Datasheet(HTML) 3 Page - Sipex Corporation |
3 / 13 page Rev. 8/10/01 LP2950/51 100mA Low Dropout Voltage Regulators ©Copyright 2001 Sipex Corporation 3 LP2950/51 PARAMETER CONDITIONS (Note 2) LP2951AC Min. Typ. Max. LP2951C Min. Typ. Max. UNITS 8-Pin Versions only (Continued) Reference Voltage Temperature Coefficient 20 50 ppm/¡C Feedback Pin Bias Current Temperature Coefficient 0.1 0.1 nA/¡C Error Comparator Output Leakage Current VOH = 30V 0.01 1 0.01 1 µA Output Low Voltage VIN = 4.5V 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 Input logic Voltage Low (Regulator ON) High (Regulator OFF) 2.0 1.3 0.7 2.0 1.3 0.7 V V Shut down Pin Input Current VS = 2.4V VS= 30V 30 675 50 800 30 675 50 800 µA µA Regulator Output Current in Shutdown (Note 8) 3 10 3 10 µA 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 TJ = 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 (VOUT = 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 LP2951 is tested at IL = 1mA. For IL = 100 µA and TJ = 125°C, line regulation is guaranteed by design to 0.2%. See typical performance characteristics for line regulation versus temperature and load current. Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV 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: VREF ≤VOUT ≤ (VIN - 1V), 2.3 ≤VIN≤30V, 100µA≤IL≤ 100mA, 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 = VOUT/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 VOUT as VOUT is varied, with the dropout warning occurring at typically 5% below nominal, 7.5% guaranteed. Note 8: VSHUTDOWN ≥ 2V, VIN ≤ 30V, VOUT =0, Feedback pin tied to 5V Tap. Note 9: All typical values are not guaranteed. The value could vary from lot to lot. |
Similar Part No. - LP2950 |
|
Similar Description - LP2950 |
|
|
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 |