Microchip Technology MIC4575-3.3WU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.10 | $4.10 |
| 15+ | $3.97 | $59.55 |
| 25+ | $3.89 | $97.25 |
| 50+ | $3.67 | $183.50 |
| 100+ | $3.24 | $324.00 |
| N+ | $0.65 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | |
| Packaging | Tube | |
| Function | Step-Down, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck, Buck-Boost |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 24V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Current - Output | 1.7A (Switch) |
| Frequency - Switching | 200kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | TO-263-5 |
| ROHS |  |
The MIC4575-3.3WU from Microchip Technology is a versatile DC-DC converter supporting both Buck and Buck-Boost topologies. It accepts 4V to 24V input and delivers a fixed 3.3V output with up to 1.7A switch current. Operating at 200kHz, it balances efficiency and component size. Housed in a TO-263-6 (D2PAK) package, it suits automotive, industrial, and portable applications requiring a robust 3.3V rail.
- Buck-Boost capability maintains 3.3V output even when input drops below output.
- 1.7A switch current supports moderate loads without external FETs.
- 200kHz switching frequency reduces inductor and capacitor sizes.
- D2PAK package provides excellent thermal performance for continuous operation.
Point-of-Load Regulation for 5V Logic
With a fixed 3.3V output and 1.7A switch current, it efficiently powers FPGAs, microcontrollers, and memory from a 5V or 12V bus in computing systems.
Battery-Powered Portable Devices
Its 4V minimum input allows operation from 3-cell NiMH or single-cell Li-ion (with boost), while buck-boost mode maintains 3.3V as the battery discharges.
Automotive Accessory Power
The 24V input tolerance handles 12V automotive systems, providing a stable 3.3V rail for dashcams, GPS modules, and telematics units.
Industrial Control Panels
In 24V industrial environments, it steps down to 3.3V for PLC I/O, sensors, and HMI controllers, with the D2PAK package dissipating heat effectively.
Networking Equipment
It powers switch ASICs and PHYs from 12V intermediate buses, with 200kHz switching reducing noise in high-speed data paths.
LED Display Drivers
The buck-boost capability allows 3.3V regulation from input voltages above or below 3.3V, ideal for battery-powered LED signage.
- Q: What type of converter is the MIC4575-3.3WU?
- A: It can operate as a Buck or Buck-Boost converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 24V.
- Q: What is the fixed output voltage?
- A: The output voltage is fixed at 3.3V.
- Q: What is the maximum switch current?
- A: The maximum switch current is 1.7A.
- Q: What is the switching frequency?
- A: The switching frequency is 200kHz.
- Q: What package is available?
- A: It comes in a TO-263-6 (D2PAK) package.
MIC4575-3.3WU.pdf
- Q: What type of converter is the MIC4575-3.3WU?
- A: It can operate as a Buck or Buck-Boost converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 24V.
- Q: What is the fixed output voltage?
- A: The output voltage is fixed at 3.3V.
- Q: What is the maximum switch current?
- A: The maximum switch current is 1.7A.
- Q: What is the switching frequency?
- A: The switching frequency is 200kHz.
- Q: What package is available?
- A: It comes in a TO-263-6 (D2PAK) package.
