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LM2991QML 数据表(PDF) 4 Page - Texas Instruments |
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LM2991QML 数据表(HTML) 4 Page - Texas Instruments |
4 / 15 page LM2991QML SNVS392A – MARCH 2006 – REVISED OCTOBER 2011 www.ti.com LM2991 ELECTRICAL CHARACTERISTICS DC PARAMETERS The following conditions apply, unless otherwise specified. DC: VI = −10V, VO = −3V, IO = 1A, CO = 47µF, RL = 2.7KΩ Sub- Symbol Parameter Conditions Notes Min Max Units groups VRef Reference Voltage 5mA ≤ IO ≤ 1A -1.234 -1.186 V 1 5mA ≤ IO ≤ 1A, -1.27 -1.15 V 2, 3 VO - 1V ≥ VI ≥ -26V VO Output Voltage Range -3.0 V 1 VI = -26V -24 V 1 -25 V 2, 3 VRLine Line Regulation IO = 5mA, VO - 1V ≥ VI ≥ -26V -26 +26 mV 1, 2, 3 VRLoad Load Regulation 50mA ≤ IO ≤ 1A -12 +12 mV 1 -15 +15 mV 2, 3 VDO Dropout Voltage IO = 0.1A, ΔVO ≤ 100mV 0.2 V 1 0.3 V 2, 3 IO = 1A, ΔVO ≤ 100mV 0.8 V 1 1.0 V 2, 3 IQ Quiescent Current IO ≤ 1A 5.0 mA 1, 2, 3 Dropout Quiescent Current VI = VO, IO ≤ 1A 50 mA 1, 2, 3 VON Output Noise 10Hz - 100KHz, IO = 5mA 450 µV 1 500 µV 2, 3 ON/OFF Input Voltage VO : ON 0.6 V 1, 2, 3 VO : OFF 2.4 V 1, 2, 3 ON/OFF Input Current VON/OFF = 0.6V (VO : ON) 10 µA 1 25 µA 2, 3 VON/OFF = 2.4V (VO : OFF) 100 µA 1 150 µA 2, 3 IL Output Leakage Current VI = -26V, VON/OFF = 2.4V, VO = 0V 250 µA 1 300 µA 2, 3 ILimit Current Limit VO = 0V 1.5 2.5 A 1 1.0 4.0 A 2, 3 LM2991 ELECTRICAL CHARACTERISTICS AC PARAMETERS The following conditions apply, unless otherwise specified. AC: VI = −10V, VO = −3V, IO = 1A, CO = 47µF, RL = 2.7KΩ Sub- Symbol Parameter Conditions Notes Min Max Units groups RR Ripple Rejection VRipple = 1VRMS, FRipple = 1KHz, IO = 5mA 50 dB 1 LM2991 ELECTRICAL CHARACTERISTICS DC DRIFT PARAMETERS The following conditions apply, unless otherwise specified. DC: VI = −10V, VO = −3V, IO = 1A, CO = 47µF, RL = 2.7kΩ Deltas not required on B −Level product. Deltas required for S−Level product ONLY. Sub- Symbol Parameter Conditions Notes Min Max Units groups VRef Reference Voltage 5mA ≤ IO ≤ 1A ±20 mV 1 4 Submit Documentation Feedback Copyright © 2006–2011, Texas Instruments Incorporated Product Folder Links: LM2991QML |
类似零件编号 - LM2991QML |
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类似说明 - LM2991QML |
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