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Microchip Technology MIC5225-2.5YM5-TR
- Part No.:
- MIC5225-2.5YM5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MIC5225-2.5YM5-TR.pdf
- Description:
- IC REG LINEAR 2.5V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,683
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Product details
Overview
MIC5225-2.5YM5-TR from Micrel is a fixed-output 2.5V, 150mA low dropout linear regulator in SOT23-5 package, featuring ultra-low 29µA ground current, 310mV dropout at full load, and ±2.0% output accuracy over –40°C to +125°C - designed for battery-powered USB and portable electronics using 1–3-cell Li-ion inputs.
For engineers reviewing the MIC5225-2.5YM5-TR datasheet, MIC5225-2.5YM5-TR pinout, MIC5225-2.5YM5-TR application, or MIC5225-2.5YM5-TR equivalent, key selection criteria include input voltage range (2.3V–16V), reverse battery protection, zero shutdown current, µCap stability with 2.2µF ceramic output capacitor, and thermal shutdown with current limiting.
Technical Context
The MIC5225-2.5YM5-TR integrates a precision 1.24V bandgap reference and active-high enable logic to support low-power keep-alive functions. Its internal architecture delivers stable regulation without requiring external compensation, enabled by µCap design optimized for ceramic or tantalum output capacitors ≥2.2µF.
It operates across a wide input range (2.3V–16V) while maintaining tight line regulation (0.04%) and load regulation (0.25%), with reverse polarity protection preventing damage from –15V input faults and leakage <–0.1µA under reverse-battery conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±2.0% over –40°C to +125°C - ensures stable core logic supply for microcontrollers and sensors. |
| Max Output Current | 150mA guaranteed - sufficient for low-power RF modules, real-time clocks, and memory backup circuits. |
| Dropout Voltage | 310mV at 150mA - enables operation down to ~2.81V input when powering 2.5V loads from single Li-ion cells. |
| Ground Current | 29µA typical at light load - extends battery life in always-on monitoring applications. |
| Input Voltage Range | 2.3V to 16V - supports direct connection to multi-cell battery packs and industrial 12V rails. |
| Enable Input Logic | Active-high EN pin with 0.6V low threshold and 2.0V high threshold - compatible with 1.8V/3.3V GPIOs without level shifting. |
| Thermal Protection | Internal thermal shutdown - prevents latch-up during sustained overload or poor PCB heatsinking in SOT23-5. |
Pinout & Package
Package: IttyBitty® SOT23-5 (M5), Pb-free, 1.6mm × 2.9mm footprint, θJA = 235°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Supply Input | Accepts 2.3V–16V unregulated input; requires ≥1.0µF ceramic bypass capacitor near pin. |
| 2 - GND | Ground Reference | Power and feedback ground return; must be low-impedance path to minimize noise and dropout error. |
| 3 - EN | Enable Input | Logic-high (>2.0V) enables regulation; logic-low (<0.6V) disables output with <5µA shutdown current. |
| 4 - NC | No Connect (Fixed Version) | Not internally bonded - must be left floating; not usable as ADJ in MIC5225-2.5YM5-TR. |
| 5 - OUT | Regulated Output | Delivers stable 2.5V; requires ≥2.2µF ceramic capacitor (X7R/X5R) for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Ground Current | 29µA typical at 100µA load - reduces quiescent power loss by >90% vs. standard LDOs in battery hold-up circuits. |
| Reverse Battery Protection | Withstands –15V input without damage or reverse leakage >–0.1µA - eliminates need for external series diode in automotive or field-replaceable battery designs. |
| µCap Stability | Stable with 2.2µF ceramic output capacitor only - avoids costly tantalum parts and simplifies BOM for space-constrained wearables. |
| Zero Shutdown Current | <5µA total device current in EN = low state - enables true "off" mode for energy harvesting or long-term storage applications. |
| Wide Input Range | Operates from 2.3V (single Li-ion) up to 16V (industrial bus) - supports unified regulator design across multiple power domains. |
Applications
| Cellular Phone Power Management | USB Peripheral Keep-Alive Supply |
|---|---|
|
Use Scenario: Maintaining RTC and SRAM state during main system sleep or battery swap in GSM/GPRS handsets. IC Role / Device Role / Timing Role: Low-quiescent LDO supplying 2.5V to real-time clock and backup memory banks. Use Value: 29µA ground current extends coin-cell or Li-ion backup runtime beyond 3 years without recharge. |
Use Scenario: Providing always-on 2.5V bias to USB enumeration circuitry and wake-on-connect logic in hubs and dongles. IC Role / Device Role / Timing Role: Standby regulator enabling host detection while main SoC is powered down. Use Value: Active-high EN allows precise control via USB controller GPIO, eliminating external pull-ups or discrete FETs. |
| Notebook Memory Backup | Automotive Infotainment MCU Core Supply |
|
Use Scenario: Delivering regulated 2.5V to CMOS RAM during AC adapter removal or deep-sleep states in ultrabooks. IC Role / Device Role / Timing Role: Non-inverting LDO with no-load stability ensuring continuous data retention without oscillation. Use Value: Guaranteed stability with zero load eliminates need for dummy resistors or complex soft-start sequencing. |
Use Scenario: Powering 2.5V I/O or analog subsystems in head-unit MCUs exposed to 12V battery transients. IC Role / Device Role / Timing Role: Input-tolerant LDO with reverse-polarity and thermal protection for harsh automotive environments. Use Value: Withstands –15V reverse battery events and shuts down before junction exceeds 125°C under sustained overload. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-quiescent LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/TT | 2.5V fixed, 250mA rating, 1.6µA quiescent current, but max input 6.0V and no reverse battery protection. | Suitable for sub-6V IoT sensors where ultra-low IQ dominates; unsuitable for 12V automotive or multi-cell battery inputs. | Select when IQ <2µA is critical and input stays ≤6V; avoid if reverse polarity or >6V input is possible. |
| Torex XC6206P252MR-G | 2.5V fixed, 150mA, 1.0µA IQ, but no EN pin, no thermal shutdown, and no reverse protection. | Fits compact, cost-sensitive consumer devices with simple on/off control and benign power sources. | Choose for minimal footprint and lowest IQ where safety features and enable control are unnecessary. |
Compared with MCP1700T-2502E/TT and XC6206P252MR-G, the MIC5225-2.5YM5-TR uniquely combines 16V input tolerance, reverse battery immunity, active enable, and thermal protection - making it the only option among the three qualified for automotive-grade battery backup and multi-cell portable systems.
Availability
MIC5225-2.5YM5-TR is available at Aetrix Electronics and suitable for cellular phone power management, USB peripheral keep-alive supply, and notebook memory backup requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for MIC5225-2.5YM5-TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Micrel Inc. was a U.S.-based analog and mixed-signal semiconductor company acquired by Microchip Technology in 2015, known for high-reliability power management and timing solutions.
The MIC5225 family was developed specifically for ultra-low-power, high-input-voltage LDO applications in portable and battery-critical systems - emphasizing quiescent current minimization without sacrificing protection or stability.
FAQ
What is the maximum input voltage supported by the MIC5225-2.5YM5-TR?
The MIC5225-2.5YM5-TR supports an absolute maximum input voltage of 18V, with guaranteed operation across 2.3V to 16V. This wide range allows direct use with 12V automotive batteries, 3-cell Li-ion packs (up to ~12.6V), and industrial 10–15V rails - all while maintaining 2.5V output accuracy and low dropout performance.
Does the MIC5225-2.5YM5-TR require an external resistor network to set output voltage?
No. The MIC5225-2.5YM5-TR is a fixed-output variant with internally trimmed 2.5V regulation - no external resistors are needed. Pin 4 is marked NC (No Connect) and must remain unconnected; only the adjustable MIC5225YM5 version uses the ADJ pin with R1/R2 feedback.
Can the MIC5225-2.5YM5-TR operate with no load connected to its output?
Yes. The MIC5225-2.5YM5-TR remains stable and in regulation with zero load - a key feature confirmed in the datasheet's "No-Load Stability" section. This makes it ideal for CMOS RAM keep-alive applications where output current may drop to 0µA for extended periods without oscillation or dropout.
What type of output capacitor is recommended for the MIC5225-2.5YM5-TR?
A minimum 2.2µF X7R or X5R ceramic capacitor is recommended for the MIC5225-2.5YM5-TR. These dielectrics provide stable capacitance over temperature (±15% for X7R), low ESR (<300mΩ), and fast transient response - ensuring stability without requiring larger or more expensive tantalum alternatives.
How does the enable function behave on the MIC5225-2.5YM5-TR?
The MIC5225-2.5YM5-TR features an active-high enable pin (Pin 3). When pulled above 2.0V, regulation is enabled; when pulled below 0.6V or left open, the device enters shutdown with <5µA total current draw. This enables precise power gating in systems with 1.8V or 3.3V microcontroller GPIOs.
MIC5225-2.5YM5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 0.45V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MIC5225-2.5YM5-TR FAQ
1.How can I place an order for MIC5225-2.5YM5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5225-2.5YM5-TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MIC5225-2.5YM5-TR reliable?
The price and inventory of MIC5225-2.5YM5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5225-2.5YM5-TR is usually 5 days.
3.What payment methods are accepted for MIC5225-2.5YM5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5225-2.5YM5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5225-2.5YM5-TR?
MIC5225-2.5YM5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5225-2.5YM5-TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MIC5225-2.5YM5-TR?
For technical support, including MIC5225-2.5YM5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5225-2.5YM5-TR requirements.
6.How does Aetrix verify that MIC5225-2.5YM5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5225-2.5YM5-TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MIC5225-2.5YM5-TR meets industry standards.
7.What is the process for return or replacement of MIC5225-2.5YM5-TR?
All MIC5225-2.5YM5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5225-2.5YM5-TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MIC5225-2.5YM5-TR part is unused and in its original packaging.
Return procedure for MIC5225-2.5YM5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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