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Product attributes Property Value
Manufacturer Microchip Technology
Product Series
Packaging Bulk |
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 16V
Voltage - Output (Min/Fixed) 2.5V
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 Enable
Protection Features Over Current, Over Temperature, Reverse Polarity
Operating Temperature -40°C ~ 125°C
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package TO-263-5
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The MIC5209-2.5YU from Microchip Technology is a fixed-output LDO regulator providing 2.5V at up to 500mA. Its low 170µA quiescent current and 600mV dropout voltage make it well-suited for battery-powered and energy-conscious designs. With an excellent 75dB PSRR at 120Hz, it ensures clean, stable power for noise-sensitive analog and RF circuits. The TO-263-5 package offers superior heat dissipation for demanding applications.

  • Excellent PSRR: 75dB rejection at 120Hz provides superior noise filtering for sensitive RF and analog loads.
  • Low Quiescent Current: 170µA quiescent current significantly extends battery life in portable devices.
  • High Output Current: 500mA capability supports a wide range of digital and analog loads.
  • Robust Package: TO-263-5 package ensures efficient thermal management for reliable operation.

Low-Power Microcontroller Supply

The 500mA output and 170µA quiescent current make it ideal for powering MCUs in battery-operated IoT sensors, balancing performance with energy efficiency.

Noise-Sensitive RF Circuits

With 75dB PSRR at 120Hz, it effectively filters supply noise for RF transceivers and VCOs, improving signal clarity and reducing spurious emissions.

Automotive Body Electronics

The TO-263-5 package provides robust thermal performance for automotive lighting control modules and body control units requiring a stable 2.5V rail.

Industrial Process Controllers

Delivers clean, regulated power to PLC I/O modules and analog front-ends, ensuring reliable operation in electrically noisy factory environments.

Portable GPS Devices

Low quiescent current extends battery life in handheld GPS units while providing a stable 2.5V supply for the navigation processor and display driver.

Networking Equipment

Powers Ethernet PHY transceivers and switch ICs, maintaining signal integrity with its high PSRR and low output noise.

Q: What is the output voltage of the MIC5209-2.5YU?
A: It provides a fixed output voltage of 2.5V.
Q: What is the maximum output current?
A: The regulator can deliver up to 500mA of output current.
Q: What is the input voltage range?
A: The minimum input voltage is 2.5V; the maximum is not specified in the provided data.
Q: What is the dropout voltage?
A: The dropout voltage is 600mV at a 500mA load.
Q: What is the quiescent current?
A: The quiescent current is 170µA.
Q: What is the PSRR performance?
A: It offers 75dB of power supply rejection ratio at 120Hz.
Base Product Number : MIC5209
2.5V 500mA High PSRR LDO Linear Regulator Low Quiescent Microchip TO-263-5
Q: What is the output voltage of the MIC5209-2.5YU?
A: It provides a fixed output voltage of 2.5V.
Q: What is the maximum output current?
A: The regulator can deliver up to 500mA of output current.
Q: What is the input voltage range?
A: The minimum input voltage is 2.5V; the maximum is not specified in the provided data.
Q: What is the dropout voltage?
A: The dropout voltage is 600mV at a 500mA load.
Q: What is the quiescent current?
A: The quiescent current is 170µA.
Q: What is the PSRR performance?
A: It offers 75dB of power supply rejection ratio at 120Hz.