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MIC3172BM Micrel Inc.
Micrel Inc.
Microchip Technology Inc. stands as a preeminent purveyor of microcontroller and analog semiconductors, proffering a realm of diminished venture in product evolution, abridged aggregate system expenditure, and expedited market entry, spanning a myriad of heterogeneous patron implementations globally. With its central command stationed in Chandler, Arizona, Microchip avails itself of superlative technical assistance, concomitant with unwavering consignment and excellence.
View All Product from Micrel Inc.The MIC2172 and MIC3172BM are complete 100kHz SMPS current-mode controllers with internal 65V 1.25A power switches. The MIC2172 features external frequency synchronization or frequency adjustment, while the MIC3172BM features an enable/shutdown control input.
Although primarily intended for voltage step-up applications, the floating switch architecture of the MIC2172/3172 makes it practical for step-down, inverting, and Cuk configurations as well as isolated topologies.
Operating from 3V to 40V, the MIC2172/3172 draws only 7mA of quiescent current making it attractive for battery operated supplies.
The MIC3172BM is for applications that require on/off control of the regulator. The MIC3172BM is externally shutdown by applying a TTL low signal to EN (enable). When disabled, the MIC3172BM draws only leakage current (typically less than 1µA). EN must be high for normal operation. For applications not requiring control, EN must be tied to VIN or TTL high.
The MIC2172 is for applications requiring two or more SMPS regulators that operate from the same input supply. The MIC2172 features a SYNC input which allows locking of its internal oscillator to an external reference. This makes it possible to avoid the audible beat frequencies that result from the unequal oscillator frequencies of independent SMPS regulators.
A reference signal can be supplied by one MIC2172 designated as a master. To insure locking of the slave's oscillators, the reference oscillator frequency must be higher than the slave's. The master MIC2172's oscillator frequency is increased up to 135kHz by connecting a resistor from SYNC to ground (see applications information).
The MIC2172/3172 is available in an 8-pin plastic DIP or SOIC for -40°C to +85°C operation.
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A: Our professional business development department conducts rigorous testing and verification of the qualifications of original manufacturers and agents of . All suppliers must undergo and pass our qualification review before they are allowed to list their MIC3172BM devices on our platform. We prioritize the sourcing channels and quality of MIC3172BM products above everything else, ensuring thorough supplier audits so you can make your purchase with utmost confidence.
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Mfr Part # | Price ($) | Quantity Available | |
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MIC2981/82YWMIC PWR DRIVER BIPOLAR 1:1 18SOP | 2.18 |
723
Marketplace | |
MIC2981/82YNIC PWR DRIVER BIPOLAR 1:1 18DIP | 0.22 |
396
Marketplace | |
MIC29750-5.0WWTIC REG LINEAR 5V 7.5A TO247-3 | 8.27 |
4690
Marketplace | |
MIC2981/82BWMIC PWR DRIVER BIPOLAR 1:1 18SOP | 0.34 |
3902
Marketplace | |
MIC2954-03WS-TRIC REG LINEAR 5V 250MA SOT223-3 | 2.07 |
10000
Marketplace |
TYPE | DESCRIPTION | Select all |
---|---|---|
Package | Tube | |
Current - Output | 1.25A | |
Product Status | Discontinued at | |
Frequency - Switching | 100kHz | |
Function | Step-Up, Step-Down, Step-Up/Step-Down | |
Synchronous Rectifier | No | |
Output Configuration | Positive or Negative | |
Operating Temperature | -40°C ~ 85°C (TA) | |
Topology | Buck, Boost, Cuk, Flyback, Forward Converter | |
Mounting Type | Surface Mount | |
Package / Case | 8-SOIC (0.154", 3.90mm Width) | |
Number of Outputs | 1 | |
Supplier Device Package | 8-SOIC | |
Voltage - Input (Min) | 3V | |
Voltage - Input (Max) | 40V |
Micrel Inc.
Microchip Technology Inc. stands as a preeminent purveyor of microcontroller and analog semiconductors, proffering a realm of diminished venture in product evolution, abridged aggregate system expenditure, and expedited market entry, spanning a myriad of heterogeneous patron implementations globally. With its central command stationed in Chandler, Arizona, Microchip avails itself of superlative technical assistance, concomitant with unwavering consignment and excellence.
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