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LM3281 Datasheet(PDF) 7 Page - Texas Instruments |
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LM3281 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 26 page VOUT (V) 20 mV/DIV Time (4 µs/DIV) SW (V) 2 V/DIV Vin (V) 2.5 3 3.5 4 4.5 5 5.5 0 2 4 6 8 10 12 14 PWM-Bypass Transition D011 Load Current (mA) 0 20 40 60 80 100 120 140 160 0 10 20 30 40 50 60 70 80 90 100 D003 VIN = 3.4 V VIN = 3.8 V VIN = 4.8 V VIN = 5.5 V Vin (V) 2.5 3 3.5 4 4.5 5 5.5 0 5 10 15 20 25 D012 Output Current (mA) 0 10 20 30 40 50 60 70 80 45 50 55 60 65 70 75 80 85 90 95 100 D001 VIN = 3.4 V VIN = 3.8 V VIN = 4.2 V VIN = 4.8 V VIN = 5.5 V Output Current (A) 0 0.2 0.4 0.6 0.8 1 1.2 1.4 80 85 90 95 100 D002 VIN = 3.4 V VIN = 3.8 V VIN = 4.8 V VIN = 5.5 V LM3281 www.ti.com SNVSA38 – NOVEMBER 2014 6.7 Typical Characteristics All curves are at TA = 25°C and VIN = 3.8 V, unless otherwise specified. CIN, COUT = 2.2 µF, CLOAD2 = 4.7 µF, CLOAD1 = 10 µF, LSW = 0.47 µH. Figure 2. ECO Efficiency vs Output Current Figure 3. PWM Efficiency vs Output Current Figure 4. Forced PWM Efficiency vs Output Current Figure 5. No Load ECO Input Current vs VIN IOUT = 10 mA Figure 6. No Load Forced PWM Input Current vs VIN Figure 7. Output Voltage Ripple in ECO Mode Copyright © 2014, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LM3281 |
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