MIC23250-3BYMT MICREL [Micrel Semiconductor], MIC23250-3BYMT Datasheet
MIC23250-3BYMT
Related parts for MIC23250-3BYMT
MIC23250-3BYMT Summary of contents
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... At higher loads the MIC23250 provides a constant switching frequency around 4MHz while providing peak efficiencies up to 94%. The MIC23250 fixed output voltage option is available in a ® 10-pin 2mm x 2mm Thin MLF range from –40°C to +125°C. The adjustable output voltage option will soon be available in Q2/Q3 2008 ...
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... Micrel, Inc. Ordering Information Part Number Marking MIC23250-GFHYMT WV1 MIC23250-G4YMT WV5 MIC23250-C4YMT WV2 MIC23250-3BYMT WV3 MIC23250-W4YMT WV4 MIC23250-Adj* TBD Note: * Available Q2/Q3 2008 Pin Configuration Pin Description Pin Number Pin Name 1 SNS1 2 EN1 3 AGND 4 SW1 5 PGND 6 VIN 7 SW2 8 AVIN 9 EN2 10 SNS2 December 2007 ...
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... IN LOAD 20mA < I < 400mA 3.6V LOAD IN SNS ≤ 1.8V 2.7V NOM OUT 100mA PMOS -100mA NMOS 120mA LOAD V = 90% OUT 3 MIC23250 (2) )......................................... 2. .................................. –0. ..................–40°C ≤ T ≤ +125° ® -10 (θ )........................70°C/W JA Min Typ Max 2.7 5.5 2.45 2.55 2.65 60 OUT1 0.01 4 – ...
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... OUT 100 VIN = 3.0V VIN = 2. VIN = 3.6V 70 VIN = 4. 1µ 4.7µF OUT 100 1000 LOAD (mA) 4 MIC23250 Switching Frequency vs. Output Current 4.7µH 4MHz 1µ 2.2µ 1.8V OUT C = 4.7µF OUT 0. 100 1000 OUTPUT CURRENT (mA) Output Voltage vs ...
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... L = 1µ 4.7µF OUT 100 1000 LOAD (mA) December 2007 Dual Output Efficiency 100 VIN = 3. VIN = 4.2V 70 VIN = 3. 1.575V OUT1 V = 1.8V 30 OUT2 Load1 = Load2 1µ 4.7µF OUT1 OUT2 100 1000 LOAD (mA) 5 MIC23250 M9999-121707-A ...
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... Micrel, Inc. Functional Characteristics December 2007 6 MIC23250 M9999-121707-A ...
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... Micrel, Inc. Functional Characteristics (Continued) December 2007 7 MIC23250 M9999-121707-A ...
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... Micrel, Inc. Functional Characteristics (Continued) December 2007 8 MIC23250 M9999-121707-A ...
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... Micrel, Inc. Functional Diagram December 2007 MIC23250 Simplified Block Diagram 9 MIC23250 M9999-121707-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 each enable pin deactivates the output. MIC23250 features built-in soft-start circuitry that reduces in-rush current and prevents the output voltage from overshooting at start up. ...
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... DC resistance (DCR) is also important. While DCR is inversely proportional to size, DCR can represent a significant Considerations. Compensation The MIC23250 is designed to be stable with a 0.47µH to 4.7µH inductor with a minimum of 2.2µF ceramic (X5R) output capacitor. Efficiency Considerations Efficiency is defined as the amount of useful output power, divided by the amount of power supplied. ...
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... Hyper Light Load™ mode or PWM mode at a specific load current by selecting the appropriate inductance. For example, in the graph below, when the inductance is 4.7µH the MIC23250 will transition into PWM mode at a ⎤ × ⎞ ...
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... Micrel, Inc. MIC23250 Typical Application Circuit (Fixed 1.575V, 1.8V) Bill of Materials Item Part Number C1, C2, C3 C1608X5R0J476K C4 VJ0603Y103KXXAT LQM21PN1R0M00 LQH32CNR1R0M33 LQM31P1R0M00 L1, L2 GFL251812T LQM31PNR47M00 MIPF2520D1R5 U1 MIC23250-GFHYMT Notes: 1. TDK: www.tdk.com 2. Vishay: www.vishay.com 3. Murata: www.murata.com 4. FDK: www.fdk.co.jp 5. Micrel, Inc: www.micrel.com December 2007 Manufacturer (1) TDK 4.7µF Ceramic Capacitor, 6.3V, X5R, Size 0603 ...
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... Micrel, Inc. PCB Layout Recommendations December 2007 Top Layer Bottom Layer 14 MIC23250 M9999-121707-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 December 2007 10-Pin 2mm x 2mm Thin MLF indemnify Micrel for any damages resulting from such use or sale. © 2007 Micrel, Incorporated. 15 ® (MT) MIC23250 M9999-121707-A ...