Skip to product information
1 of 1
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Regular price $1.93
Regular price $2.03 Sale price $1.93
Sale Sold out
Quantity Unit Price Total Price
1 $1.93 $1.93
15+ $1.87 $28.05
25+ $1.83 $45.75
50+ $1.73 $86.50
100+ $1.52 $152.00
N+ $0.30 Price Inquiry
Shipping calculated at checkout.
Quantity
Component Recycling

Request Quote / Inquiry

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 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 MIC5209-3.3YU is a fixed 3.3V low dropout regulator from Microchip Technology, capable of delivering 500mA of output current. It features a low dropout voltage of 0.6V at full load and a quiescent current of just 170µA, making it efficient for battery-powered applications. The device offers excellent PSRR of 75dB at 120Hz, ensuring clean output for sensitive electronics. Housed in a TO-263-5 package, it provides good thermal performance for demanding applications.

  • High Output Current: 500mA capability supports power-hungry digital loads like FPGAs and DSPs.
  • Excellent PSRR: 75dB at 120Hz rejects power supply noise, ideal for audio and precision analog circuits.
  • Low Quiescent Current: 170µA quiescent current minimizes power loss in battery-operated devices.
  • Thermally Enhanced Package: TO-263-5 with exposed pad improves heat dissipation for reliable operation at high currents.

FPGA and DSP Core Supplies

The MIC5209-3.3YU delivers 500mA at 3.3V with a dropout of only 0.6V, making it ideal for powering FPGA core logic and DSP processors. The 75dB PSRR at 120Hz ensures clean power for sensitive digital circuits.

Networking Equipment

In routers and switches, this regulator provides a stable 3.3V rail for PHY transceivers and switch ICs. The TO-263-5 package with exposed pad allows efficient heat sinking in compact line cards.

Battery-Powered Medical Devices

With 170µA quiescent current, this LDO extends battery life in portable medical monitors. The low dropout enables operation from a 3.6V Li-ion cell down to 3.9V, maximizing usable battery capacity.

Automotive Infotainment

This regulator powers audio codecs and display controllers in car infotainment systems. Its robust design handles automotive voltage transients while maintaining a clean 3.3V output for noise-sensitive analog audio circuits.

Industrial Sensor Interfaces

The MIC5209-3.3YU provides a stable reference supply for industrial sensors and transducers. The high PSRR rejects interference from nearby motors and actuators, ensuring accurate signal conditioning.

Q: What is the output voltage of the MIC5209-3.3YU?
A: The fixed output voltage is 3.3V.
Q: What is the maximum output current?
A: It can deliver up to 500mA.
Q: What is the input voltage range?
A: The input voltage range is up to 16V (absolute maximum).
Q: What is the dropout voltage?
A: The dropout voltage is 0.6V at 500mA load.
Q: What is the quiescent current?
A: The quiescent current is 170µA.
Q: What package is available?
A: It comes in a TO-263-5 package.
Base Product Number : MIC5209-3.3
3.3V 500mA High PSRR LDO Linear Regulator Low Dropout Microchip TO-263-5
Q: What is the output voltage of the MIC5209-3.3YU?
A: The fixed output voltage is 3.3V.
Q: What is the maximum output current?
A: It can deliver up to 500mA.
Q: What is the input voltage range?
A: The input voltage range is up to 16V (absolute maximum).
Q: What is the dropout voltage?
A: The dropout voltage is 0.6V at 500mA load.
Q: What is the quiescent current?
A: The quiescent current is 170µA.
Q: What package is available?
A: It comes in a TO-263-5 package.