Microchip Technology MIC5209-3.3YS
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.53 | $1.53 |
| 15+ | $1.48 | $22.20 |
| 25+ | $1.45 | $36.25 |
| 50+ | $1.37 | $68.50 |
| 100+ | $1.21 | $121.00 |
| N+ | $0.24 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 16V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.6V @ 500mA |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 170 µA |
| Current - Supply (Max) | 25 mA |
| PSRR | 75dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Reverse Polarity |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-3 |
| ROHS |
The MIC5209-3.3YS is a fixed 3.3V low dropout linear regulator capable of delivering 500mA. It features a low dropout voltage of 0.6V and a quiescent current of 170 µA, making it efficient for battery-operated equipment. The SOT-223-3 package is suitable for space-constrained designs.
- Low Quiescent Current (170 µA): Extends battery life in portable applications.
- High PSRR (75dB @ 120Hz): Provides clean output for noise-sensitive circuits.
- Low Dropout (0.6V @ 500mA): Allows operation with minimal headroom, improving efficiency.
- 500mA Output Current: Supports a wide range of loads, from sensors to microcontrollers.
Battery-Powered Devices
The low 170 µA quiescent current extends battery life in portable electronics like handheld meters and remote sensors, where standby power is critical.
Post-Regulation for Switching Supplies
With 75dB PSRR at 120Hz, this LDO effectively filters ripple from a DC-DC converter, providing a clean 3.3V rail for sensitive analog circuits.
Microcontroller Power Supply
Delivering up to 500mA, it can power a microcontroller and its peripherals, ensuring stable operation during peak current demands.
Industrial Sensor Interfaces
The low dropout of 0.6V allows operation from a 3.9V rail, making it suitable for 3.3V logic in industrial control systems with tight voltage margins.
Audio Equipment
High PSRR minimizes hum and noise from the main supply, making it ideal for powering audio codecs and preamplifiers.
Communication Modules
Provides a stable 3.3V supply for RF transceivers and wireless modules, reducing voltage-induced frequency drift.
- Q: What is the output voltage of the MIC5209-3.3YS?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of continuous current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.6V at a 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 170 µA.
- Q: What package is available?
- A: It comes in a SOT-223-3 package.
- Q: What is the output voltage of the MIC5209-3.3YS?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of continuous current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.6V at a 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 170 µA.
- Q: What package is available?
- A: It comes in a SOT-223-3 package.

MIC5209-3.3YS.pdf