MIC23150 Micrel Semiconductor, MIC23150 Datasheet
MIC23150
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MIC23150 Summary of contents
Page 1
... The MIC23150 has a very low quiescent current of 23µA and achieves a peak efficiency of 93% in continuous conduction mode. In discontinuous conduction mode, the MIC23150 can achieve 87% efficiency at 1mA. ...
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... Input Voltage: Connect a capacitor-to-ground to decouple the noise. Power Ground. 2 www.DataSheet4U.com Package ® 8-Pin 2mm x 2mm Thin MLF ® 8-Pin 2mm x 2mm Thin MLF ® 8-Pin 2mm x 2mm Thin MLF ® 8-Pin 2mm x 2mm Thin MLF PGND VIN VIN AGND M9999-082908-A MIC23150 Lead Finish Pb-Free Pb-Free Pb-Free Pb-Free ...
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... V EN )... ….-40°C ≤ ...........................90°C/W JA Min Typ 2.7 2.55 2. 0.01 -2.5 3.4 2.2 = 20mA LOAD 0.3 = 20mA LOAD < 2.5V OUTNOM 0.75 ≥ 2.5V OUTNOM 0.150 0.110 4 115 0.8 0.5 0.1 160 20 MIC23150 IN ≤ +125°C J Max Units V 5.5 V 2.65 mV µA 40 µ +2.5 A %/V %/A Ω MHz µs V 1.2 µA 2 °C °C M9999-082908-A ...
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... C = 4.7µF OUT 0.001 1 10 100 1000 10000 OUTPUT CURRENT (mA) Output Voltage vs. Temperature 1.85 1.84 1.83 1.82 1.81 1.80 1.79 1.78 L =1.0µH 1. 4.7µF OUT 1.76 LOAD = 120mA 1.75 TEMPERATURE (°C) 4 MIC23150 www.DataSheet4U.com Efficiency with Various Inductors 100 1.0µ 0.68µ 1.5µ 2.2µ 3. 1.8V OUT 4.7µF OUT 50 0 ...
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... Micrel Inc. Functional Characteristics February 2009 5 MIC23150 www.DataSheet4U.com M9999-082908-A ...
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... Micrel Inc. February 2009 6 MIC23150 www.DataSheet4U.com M9999-082908-A ...
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... Micrel Inc. Functional Characteristics (cont.) February 2009 7 MIC23150 www.DataSheet4U.com M9999-082908-A ...
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... Micrel Inc. Functional Characteristics (cont.) February 2009 8 MIC23150 www.DataSheet4U.com M9999-082908-A ...
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... Micrel Inc. Functional Diagram EN UVLO Reference COMPARATOR February 2009 CONTROL LOGIC Timer & Softstart Current ERROR ZERO 1 Figure 1. Simplified MIC23150 Functional Block Diagram 9 www.DataSheet4U.com VIN Gate Drive Limit ISENSE AGND MIC23150 SW PGND SNS M9999-082908-A ...
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... A logic high signal on the enable pin activates the output voltage of the device. A logic low signal on the enable pin deactivates the output and reduces supply current to 0.01µA. MIC23150 features built-in soft-start circuitry that reduces in-rush current and prevents the output voltage from overshooting at start up. Do not leave the EN pin floating ...
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... DCR can represent a temperature rating significant efficiency loss. Refer to the Efficiency Considerations. Compensation The MIC23150 is designed to be stable with a 0.47µH to 2.2µH inductor with a minimum of 2.2µF ceramic (X5R) output capacitor. Duty Cycle The typical maximum duty cycle of the MIC23150 is 80%. ...
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... As the load current increases, the MIC23150 goes into continuous conduction mode (CCM) and switches at a frequency centered at 4MHz. The equation to calculate the load when the MIC23150 goes into continuous conduction mode may be approximated by the following formula: As shown in the previous equation, the load at which MIC23150 transitions from HyperLight Load™ ...
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... Micrel Inc. MIC23150 Typical Application Circuit VIN EN GND Bill of Materials Item Part Number C1, C2 C1608X5R0J475K VLS3010T-1R0N1R9 L1 VLS4012T-1R0N1R6 DO2010-102ML U1 MIC23150-xYMT Notes: 1. TDK: www.tdk.com 2. Coilcraft: www.coilcraft.com 3. Micrel, Inc.: www.micrel.com February 2009 U1 MIC23150 VIN SW C1 2mm×2mm ThinMLF SNS EN AGND PGND Manufacturer Description (1) TDK 4.7µ ...
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... Micrel Inc. PCB Layout Recommendations February 2009 Thin MILF Top Layer Thin MLF Bottom Layer 14 MIC23150 www.DataSheet4U.com M9999-082908-A ...
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... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. February 2009 8-Pin 2mm x 2mm Thin MLF 15 © 2008 Micrel, Incorporated. MIC23150 www.DataSheet4U.com M9999-082908-A ...