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LM2841 Arkusz danych(PDF) 6 Page - Texas Instruments |
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LM2841 Arkusz danych(HTML) 6 Page - Texas Instruments |
6 / 19 page 1.1 1.7 2.3 2.8 3.4 4.0 SHDN PIN VOLTAGE (V) 1.2 1.0 0.9 0.7 0.6 0.4 LM2841, LM2842 SNVS540H – MARCH 2009 – REVISED APRIL 2013 www.ti.com Typical Performance Characteristics (continued) Switch Current Limit vs. SHDN Pin Voltage (Soft-start Implementation, LM2842) SHDN Pin Current vs. SHDN Pin Voltage Figure 8. Figure 9. Switching Node and Output Voltage Waveforms Load Transient Waveforms VIN = 12V, VOUT = 3.3V, IOUT = 200 mA VIN = 12V, VOUT = 3.3V, IOUT = 300 mA to 200 mA to 300 mA Top trace: VOUT, 10 mV/div, AC Coupled Top trace: VOUT, 20 mV/div, AC Coupled Bottom trace: SW, 5V/div, DC Coupled Bottom trace: IOUT, 100 mA/div, DC Coupled T = 1 µs/div T = 200 µs/div Figure 10. Figure 11. Start-up Waveform VIN = 12V, VOUT = 3.3V, IOUT = 50 mA Top trace: VOUT, 1V/div, DC Coupled Bottom trace: SHDN, 2V/div, DC Coupled T = 40 µs/div Figure 12. 6 Submit Documentation Feedback Copyright © 2009–2013, Texas Instruments Incorporated Product Folder Links: LM2841 LM2842 |
Podobny numer części - LM2841_13 |
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Podobny opis - LM2841_13 |
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