MIC23303YML T5 Microchip Integrated Circuit (Small Outline No-lead) In Stock
The MIC23303YML T5 is a dual-channel synchronous buck switching regulator controller from Microchip (Micrel), capable of delivering up to 3 A per channel with an adjustable output voltage from 0.65 V to 3.6 V and a 4 MHz switching frequency. It is housed in a compact 12-pin DFN package, enabling highly efficient power delivery in space-constrained designs. Ideal for multi-rail power supplies in FPGAs, processors, and portable consumer electronics.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 13
- Lifecycle
- ACTIVE
- Datasheet
- MIC23303YML T5 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel synchronous buck controller with up to 3 A output per channel
- Adjustable output voltage: 0.65 V to 3.6 V for flexible multi-rail power designs
- High switching frequency: 4 MHz enabling small inductor and capacitor selection
- 12-pin DFN package for minimal PCB footprint in dense power supply designs
- Synchronous rectification for high efficiency across light and heavy loads
- Suitable for powering FPGAs, DSPs, and multi-core SoC applications
Applications
MIC23303YML T5 is used in multi-rail power supply designs for FPGAs, digital signal processors, and application processors where two independently regulated buck converters with high switching frequency are needed in a small form factor. It suits portable devices, embedded computing modules, and telecommunications equipment where the 0.65 V to 3.6 V adjustable output range covers core, I/O, and memory voltage rails.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MIC23303YML T5:
4MHz PWM 3A Buck Regulator with HyperLight Load, Mode and Power Good
Frequently Asked Questions
What is the output current capability and switching frequency of MIC23303YML T5, and how do they benefit compact power supply designs?
MIC23303YML T5 supports up to 3 A per channel with a 4 MHz switching frequency. The high switching frequency allows designers to use smaller inductors (typically 1 µH to 4.7 µH) and output capacitors, reducing total power supply footprint significantly compared to lower-frequency converters operating at 300 kHz to 600 kHz.
Can MIC23303YML T5 power FPGA core and I/O rails simultaneously from a single IC?
Yes. MIC23303YML T5 provides 2 independent buck regulator channels, each adjustable from 0.65 V to 3.6 V, allowing it to supply both the FPGA core voltage (typically 0.9 V to 1.2 V) and the I/O voltage rail (typically 1.8 V or 3.3 V) simultaneously. The dual-channel design reduces component count and board space compared to using two separate single-channel regulators.
What package does MIC23303YML T5 use, and what are typical thermal management considerations?
MIC23303YML T5 is housed in a 12-pin DFN package with an exposed thermal pad on the bottom. For 3 A continuous load on both channels, designers should place thermal vias under the exposed pad connecting to an inner copper plane, and ensure adequate airflow to keep the junction temperature below 125°C at maximum ambient conditions.
How does MIC23303YML T5 compare to a discrete dual-regulator implementation for tight BOM constraints?
MIC23303YML T5 integrates 2 buck controllers in a single 12-pin DFN package, reducing BOM line items by eliminating a second IC, associated decoupling capacitors, and extra PCB area compared to a discrete dual-regulator approach. At 4 MHz switching frequency, passive components are smaller, further reducing total solution cost and board area by approximately 30–40% in typical designs.
Is MIC23303YML T5 suitable for designs with strict EMI requirements, and what output voltage range does it cover?
MIC23303YML T5 switches at 4 MHz, which places the fundamental harmonic above the 3 MHz threshold targeted by many industrial and consumer EMI standards, simplifying filter design. Its output voltage range of 0.65 V to 3.6 V covers the most common core and I/O rail voltages for modern SoCs and memory devices, with spread-spectrum options available in the Microchip buck regulator family for further EMI reduction.
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