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LM2990 Datasheet(PDF) 5 Page - Texas Instruments |
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LM2990 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 24 page LM2990 www.ti.com SNVS093G – JUNE 1999 – REVISED MAY 2015 6.5 Electrical Characteristics: –5 V and –5.2 V VIN = −5 V + VOUT(NOM) (1), I OUT = 1 A, COUT = 47 μF, unless otherwise specified. All limits apply for TJ = 25°C, unless otherwise indicated in the Test Conditions. LM2990 –5V LM2990 –5.2V PARAMETER TEST CONDITIONS UNIT MIN(2) TYP(3) MAX(2) MIN(2) TYP(3) MAX(2) 5 mA ≤ IOUT ≤ 1 A −5.1 –5 –4.9 −5.3 –5.2 –5.1 V Output voltage 5 mA ≤ IOUT ≤ 1 A (VOUT) –5.25 –5 −4.75 –5.46 –5.2 –4.94 V −40°C ≤ TJ ≤ 125°C IOUT = 5 mA, Line regulation 4 40 4 40 mV VO(NOM) −1 V > VIN > −26 V Load regulation 50 mA ≤ IOUT ≤ 1 A 1 40 1 40 mV IOUT = 0.1 A, ΔVOUT ≤ 100 mV 0.1 0.3 0.1 0.3 V −40°C ≤ TJ ≤ 125°C Dropout voltage IOUT = 1 A, ΔVOUT ≤ 100 mV 0.6 1 0.6 1 V −40°C ≤ TJ ≤ 125°C IOUT ≤ 1 A 1 5 1 5 Quiescent mA current (Iq) IOUT = 1 A, VIN = VOUT(NOM) 9 50 9 50 Short circuit RL = 1 Ω (4) 1.5 1.8 1.5 1.8 A current Maximum output See(4) 1.5 1.8 1.5 1.8 A current Ripple rejection Vripple = 1 Vrms, 50 58 50 58 dB(min) ƒripple = 1 kHz, IOUT = 5 mA Output noise 10 Hz to 100 kHz, IOUT = 5 mA μV(max) 250 750 250 750 voltage Long-term 1000 Hours ppm 2000 2000 stability (1) VOUT(NOM) is the nominal (typical) regulator output voltage, −5 V, −5.2 V, −12 V or −15 V. (2) Limits are specified and 100% production tested. (3) Typicals are at TJ = 25°C and represent the most likely parametric norm. (4) The short circuit current is less than the maximum output current with the −12 V and −15 V versions due to internal foldback current limiting. The −5 V and −5.2 V versions, tested with a lower input voltage, does not reach the foldback current limit and therefore conducts a higher short circuit current level. If the LM2990 output is pulled above ground, the maximum allowed current sunk back into the LM2990 is 1.5 A. Copyright © 1999–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM2990 |
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