Microchip Technology MIC4575-3.3WT
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $9.04 | $9.04 |
| 15+ | $2.08 | $31.20 |
| 25+ | $2.03 | $50.75 |
| 50+ | $1.92 | $96.00 |
| 100+ | $1.70 | $170.00 |
| N+ | $0.34 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | |
| Packaging | Bulk | |
| 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 | Through Hole |
| Package / Case | TO-220-5 |
| Supplier Device Package | TO-220-5 |
| ROHS |  |
The MIC4575-3.3WT from Microchip Technology is a versatile Buck DC-DC converter designed for wide input voltage applications. It accepts inputs from 4V to 24V and provides a fixed 3.3V output with up to 1.7A switch current. The 200kHz switching frequency offers a good balance between efficiency and component size. This converter can be configured as a Buck or Buck-Boost, providing flexibility for various power supply designs. It is well-suited for automotive, industrial, and telecom applications where input voltages vary significantly. The TO-220-5 package allows for easy mounting and heat dissipation.
- Wide Input Range: 4V to 24V handles automotive and industrial voltage variations.
- Buck-Boost Flexibility: Can be configured for step-down or inverting applications.
- High Switch Current: 1.7A supports a wide range of loads.
- Robust Package: TO-220 allows excellent thermal management for high-power operation.
- Simple Fixed Output: 3.3V fixed output reduces external components.
Automotive Power Systems
With a 4V to 24V input range, the MIC4575-3.3WT is ideal for automotive applications operating from 12V batteries. It provides a regulated 3.3V rail for ECUs, sensors, and infotainment systems, handling load dumps and cranking conditions.
Industrial 24V Bus Conversion
Industrial control systems often use 24V DC buses. This converter steps down to 3.3V for microcontrollers and logic, with the 200kHz frequency providing robust operation in noisy industrial environments.
Telecom Power Supplies
In telecom equipment with 12V or 24V rails, this buck converter delivers 3.3V for line cards and switching logic. The TO-220 package allows easy heatsinking for high ambient temperatures.
Battery-Powered Equipment
For equipment running from multi-cell batteries (e.g., 12V lead-acid), the wide input range accommodates varying battery voltage. The 1.7A switch current supports moderate loads like motors and displays.
Distributed Power Architectures
In systems with intermediate bus voltages, this converter provides local 3.3V regulation. Its Buck-Boost capability allows operation when input voltage dips below output, offering design flexibility.
White Goods Appliances
Washing machines and refrigerators use 12V or 24V control boards. This converter provides a stable 3.3V for control ICs, with the TO-220 package ensuring reliable thermal performance.
- Q: What type of converter is the MIC4575-3.3WT?
- A: It is a Buck (step-down) converter that can also be configured as a Buck-Boost.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 24V.
- Q: What is the output voltage?
- A: This version has a fixed 3.3V output.
- Q: What is the maximum switch current?
- A: The internal switch can handle up to 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-220-5 package.
MIC4575-3.3WT.pdf
- Q: What type of converter is the MIC4575-3.3WT?
- A: It is a Buck (step-down) converter that can also be configured as a Buck-Boost.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 24V.
- Q: What is the output voltage?
- A: This version has a fixed 3.3V output.
- Q: What is the maximum switch current?
- A: The internal switch can handle up to 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-220-5 package.
