Datasheet Microchip MIC2169BYMME-TR The MIC2169B is a high-efficiency, simple to use 500kHz PWM synchronous buck control IC housed in a small MSOP-10 ePad package Datasheets- Download » Datasheet, PDF, 533 Kb, Revision: 11-05-2015
MIC2169B - 500kHz PWM Synchronous Buck Control IC Docket ↓MIC2169B 500kHz PWM Synchronous Buck Control IC General Description Features The MIC2169B is a high-efficiency, simple to use 500kHz PWM synchronous buck control IC housed in small MSOP-10 and MSOP-10 ePad packages. The MIC2169B allows compact DC/DC solutions with a minimal external component count and cost. The device features highoutput driver capability to drive loads up to 30A. The MIC2169B operates from a 3V to 14.5V input, without the need of any additional bias voltage. The output voltage can be precisely regulated down to 0.8V. The adaptive all N-Channel MOSFET drive scheme allows efficiencies over 95% across a wide load range within the smallest possible printed circuit board space area. The MIC2169B senses current across the high-side NChannel MOSFET, eliminating the need for an expensive and lossy current-sense resistor. Current-limit accuracy is maintained by a positive temperature coefficient that tracks the increasing RDS(ON) of the external MOSFET. Further cost and space are saved by the internal in-rush currentlimiting digital soft-start. The MIC2169B is identical to the MIC2169A with the exception that the MIC2169B supports pre-bias loads and has a lower impedance gate-drive circuit. Internal pre-bias circuit prevents output voltage drooping and excessive reverse inductor current when powering up with a pre-bias voltage at the output. ...
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StatusLifecycle Status | Production (Appropriate for new designs but newer alternatives may exist) |
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PackagingParametricsCurrent Limit / Short Circuit Protection | True |
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Duty Cycle Max | 0.92 % |
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Enable Pin | True |
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Internal Voltage Bias | True |
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Iq Off | 50 µA |
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Maximum Input Voltage | 14.5 V |
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Minimum Input Voltage | 3 V |
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Minimum Output Voltage | 0.8 V |
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Operating Frequency | 500K Hz |
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Operating Supply Current | 1.5 mA |
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Operating Temperature Range | -40 to +125 °C |
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Soft Start | True |
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Supported Outputs | 1 |
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Supported Topologies | Sync. Buck |
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Typical Tolerance | В±1 % |
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Eco PlanMoldel LineSeries: MIC2169B (4) Manufacturer's Classification- Power Management > PWM Controllers > Buck Products
Other Names:MIC2169BYMMETR, MIC2169BYMME TR
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