Micrel Inc. MIC4575-5.0BWM
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.12 | $4.12 |
| 15+ | $0.95 | $14.25 |
| 25+ | $0.93 | $23.25 |
| 50+ | $0.88 | $44.00 |
| 100+ | $0.77 | $77.00 |
| N+ | $0.15 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Micrel Inc. |
| Product Series | |
| Packaging | Bulk | |
| Function | 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) | 5V |
| Voltage - Output (Max) | - |
| Current - Output | 1A |
| Frequency - Switching | 200kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 24-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 24-SOIC |
The Micrel MIC4575-5.0BWM is a versatile 1A Buck converter with a wide 4V to 24V input voltage range, providing a fixed 5V output. It can also be configured as a Buck-Boost (inverting) regulator for generating negative voltages. Operating at a 200kHz switching frequency, it offers a good balance between efficiency and component size. Housed in a 24-SOIC package, this converter is well-suited for automotive, industrial, and networking applications requiring a robust and reliable 5V supply.
- Wide Input Voltage Range: Accepts 4V to 24V, making it ideal for automotive and industrial 12V/24V systems.
- Versatile Topology: Can be used as a Buck or Buck-Boost (inverting) converter for positive or negative output rails.
- Robust 1A Output: Provides sufficient current for a wide range of loads, from microcontrollers to small motors.
- Simple Fixed Output: The fixed 5V output eliminates the need for external feedback resistors, simplifying design.
Automotive Power Systems
With a wide 4V to 24V input range, the MIC4575-5.0BWM can regulate 5V from a car battery, handling voltage transients and load dumps common in automotive environments. Its 1A output is suitable for sensors, microcontrollers, and small actuators.
Industrial Control Equipment
In industrial settings with 12V or 24V supply rails, this converter provides a stable 5V rail for logic circuits, relays, and interface ICs. The 200kHz frequency balances efficiency with external component size.
Networking and Telecom
For networking equipment powered by 12V or 24V backplanes, the MIC4575-5.0BWM delivers a clean 5V supply for line drivers, PHYs, and control logic, ensuring reliable data transmission.
Negative Voltage Generation (Buck-Boost)
In applications requiring a negative rail, such as op-amp supplies or bias voltages, the MIC4575 can be configured as an inverting Buck-Boost to generate -5V from a positive input, adding design flexibility.
Point-of-Load Regulation
This device can serve as a local 5V point-of-load regulator in distributed power architectures, reducing noise and improving regulation for sensitive analog or digital loads.
- Q: What type of converter is the MIC4575-5.0BWM?
- A: It is a Buck (step-down) converter that can also be configured as a Buck-Boost (inverting) regulator.
- 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 5V.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- Q: What is the switching frequency?
- A: The switching frequency is 200kHz.
- Q: What package is available?
- A: It is available in a 24-SOIC (0.295", 7.50mm Width) package.
- Q: What type of converter is the MIC4575-5.0BWM?
- A: It is a Buck (step-down) converter that can also be configured as a Buck-Boost (inverting) regulator.
- 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 5V.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- Q: What is the switching frequency?
- A: The switching frequency is 200kHz.
- Q: What package is available?
- A: It is available in a 24-SOIC (0.295", 7.50mm Width) package.

MIC4575-5.0BWM.pdf