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JMK107BJ475RA Datasheet(PDF) 2 Page - Richtek Technology Corporation |
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JMK107BJ475RA Datasheet(HTML) 2 Page - Richtek Technology Corporation |
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2 / 14 page  RT8016 2 DS8016-04 February 2012 www.richtek.com © Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Typical Application Circuit Figure 1. Fixed Voltage Regulator Figure 2. Adjustable Voltage Regulator ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ + = R2 R1 1 x V V REF OUT with R2 = 300k Ω to 60kΩ so the IR2 = 2μA to 10μA, and (R1 x C1) should be in the range between 3x10-6 and 6x10-6 for component selection. Figure 3. Layout Guide for RT8016 Layout note: 1. The distance that CIN connects to VIN is as close as possible (Under 2mm). 2. COUT should be placed near RT8016. Layout Guide 4.7µF 10µF VIN LX RT8016 EN VOUT 2.2µH 2.5V to 5.5V VIN VOUT CIN L 6 4 3 2 1, 5 COUT GND 4.7µF 10µF VIN LX RT8016 EN FB 2.2µH 2.5V to 5.5V VIN VOUT CIN L 6 4 3 2 COUT R1 R2 C1 IR2 1, 5 GND GND L1 EN VIN GND LX COUT CIN RT8016_FIX CIN must be placed between VDD and GND as close as possible LX should be connected to Inductor by wide and short trace, keep sensitive compontents away from this trace Output capacitor must be near RT8016 1 2 34 5 6 VOUT EN VIN FB GND LX RT8016_ADJ CIN must be placed between VDD and GND as close as possible LX should be connected to Inductor by wide and short trace, keep sensitive compontents away from this trace Output capacitor must be near RT8016 L1 COUT CIN 1 2 3 4 5 6 R1 R2 GND |
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