lx1912 Microsemi Corporation, lx1912 Datasheet
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lx1912
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lx1912 Summary of contents
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... Figure 1 – LX1912 Circuit Topology and Typical Efficiency Performance T (°C) Input Voltage +70 4.0V – 6.0V Adjustable Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1912CSG-TR) Copyright © 2005 Rev. 1.0, 2006-09-06 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 VREF @ 800mV, 1.0A, 1.2MHz PWM ® P ...
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... J , θ A 134°C/W MBIENT JA x θ Description Microsemi Integrated Products Division LX1912 P D RODUCTION ATA SHEET 0.3V) N. GND VPWR ...
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... PFM Mode Load Current Crossover 1Hz < Frequency VCC < 10KHz V = 1.2V, 50mA < I < 1.0A, ckt figure (assured by design, not ATE tested 1.0V IN OUT below 125°C J Microsemi Integrated Products Division LX1912 P D RODUCTION ATA SHEET Min Typ Max 4.0 6.0 784 800 816 40 75 200 500 850 ...
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... VREF @ 800mV, 1.0A, 1.2MHz PWM ® VPWR CL PWM OVP BG REF 800mV GND Figure 2 – LX1912 Block Diagram Inductor Diode N.C. SW GND VPWR FB VCC LX1912 Figure 3 – PCB Layout Considerations ...
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... FB pin to reduce noise coupling into this high impedance sense input. Other considerations include is also referred placing a 0.1uF capacitor between the LX1912 VOUT pin and GND REF pin to reduce high frequency noise and decoupling the VCC, VPWR pins using a 0.1µ ...
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... Figure 5 – PFM / PWM Range of Output Switch IN Figure 7– Soft Start Power On 2.7µ 30µF Microsemi Integrated Products Division LX1912 P D RODUCTION ATA SHEET PWM Frequency vs Load Current 0.001 0.01 0.1 Load Current 30µF, OUT I = 0mA OUT DC 1 Page 6 ...
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... VREF @ 800mV, 1.0A, 1.2MHz PWM ® Dim Note Microsemi Integrated Products Division LX1912 P D RODUCTION ATA SHEET M I ILLIMETERS NCHES MIN MAX MIN MAX - 1.00 - 0.039 0.01 0.10 0.0004 0.004 0.84 0.90 0.033 ...
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... Microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time. Copyright © 2005 Rev. 1.0, 2006-09-06 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 VREF @ 800mV, 1.0A, 1.2MHz PWM ® P RODUCTION Microsemi Integrated Products Division LX1912 D ATA SHEET Page 8 ...