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MIC5209-2.5YSTR

500mA LDO, 2.5V fixed, low noise, SOT-223

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Manufacturer Part：

MIC5209-2.5YSTR

Package：

SOT-223 (6.5 x 3.5 x 1.6 mm)

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Description

Product Overview

The Microchip MIC5209-2.5YSTR is a 500mA low-noise LDO voltage regulator with a fixed 2.5V output in a SOT-223 package. It features very low dropout voltage (typically 10mV at light loads, 175mV at 150mA), better than 1% output voltage accuracy, and ultra-low noise capability with a bypass capacitor. Designed for battery-powered and handheld devices, it includes an enable/shutdown pin, reversed-battery protection, current limiting, and overtemperature shutdown. The device operates from 2.5V to 16V input over the -40°C to +125°C temperature range.

Key Specifications

Output Voltage 2.5V fixed
Output Current 500mA
Dropout Voltage 500mV max at 500mA
Input Voltage Range 2.5V to 16V
Output Accuracy +/-1%
Line Regulation 0.05%/V
Load Regulation 0.5%
Operating Temperature -40°C to +125°C
Package SOT-223

Features

  • Guaranteed 500mA output over full temperature range
  • Low dropout voltage (175mV at 150mA typical)
  • Better than 1% output voltage accuracy
  • Ultra-low noise capability with bypass capacitor
  • Low ground current
  • Enable/shutdown pin for power management
  • Reversed battery protection
  • Current limiting and thermal shutdown
  • No-load stability
  • Low temperature coefficient

Applications

  • Battery-powered handheld devices
  • Low-voltage digital and analog circuits
  • RF and noise-sensitive applications
  • Portable instrumentation
  • Memory and processor I/O supply

The Microchip MIC5209-2.5YSTR is an efficient linear voltage regulator with very low dropout voltage and better than 1% output voltage accuracy at 2.5V. Designed especially for handheld, battery-powered devices, the MIC5209 features low ground current to prolong battery life. An enable/shutdown pin can further improve battery life with near-zero shutdown current. Key features include reversed-battery protection, current limiting, overtemperature shutdown, and ultra-low-noise capability when used with an external bypass capacitor on the BYP pin.

The MIC5209-2.5YSTR operates as a series-pass linear regulator. 1) Reference Subsystem: A precision bandgap reference provides a stable voltage, trimmed for better than 1% accuracy. 2) Error Amplifier Subsystem: Compares the feedback voltage (from the internal resistor divider setting 2.5V output) with the reference, driving the pass transistor to regulate the output. 3) Pass Element Subsystem: A PNP pass transistor provides low dropout operation; the dropout voltage is the saturation voltage of this transistor. 4) Noise Reduction Subsystem: The BYP pin connects an external capacitor to the reference voltage node, filtering reference noise for ultra-low output noise performance. 5) Protection Subsystem: Current limiting, thermal shutdown, and reverse-battery protection circuitry safeguard the device under fault conditions.

Pin Name Type Function
1 IN Power Input voltage (2.5-16V)
2 GND Power Ground (tab)
3 EN Input Enable (active-high) / Shutdown
4 OUT Power 2.5V regulated output
Tab GND Power Ground and thermal pad
  • Low-Voltage Digital: 2.5V supply for FPGA, CPLD, and memory I/O banks
  • Battery-Powered Devices: Handheld instruments requiring 2.5V rail
  • RF Systems: Low-noise power for 2.5V RF front-end circuits
  • Portable Audio: Clean 2.5V supply for DAC/ADC references
  • Sensor Interface: Low-noise 2.5V for precision analog sensors
Manufacturer Part Number Package Notes
Microchip MIC5209-3.3YSTR SOT-223 3.3V output variant
TI TLV1117-25 SOT-223 800mA LDO, 2.5V
onsemi NCP512-2.5 SOT-223 1A LDO, 2.5V
Microchip MIC5219-2.5YM5-TR SOT-23-5 500mA LDO, 2.5V, smaller package
ADI LT1117-2.5 SOT-223 800mA LDO, 2.5V
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

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All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

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Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
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Contact Information

Email: info@ic-vendor.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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Professional Packaging Standards

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  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

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We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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