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Microchip Technology MIC5225-2.7YM5-TR
- Part No.:
- MIC5225-2.7YM5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MIC5225-2.7YM5-TR.pdf
- Description:
- IC REG LINEAR 2.7V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,122
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Product details
Overview
MIC5225-2.7YM5 from Micrel is a fixed-output 2.7V, 150mA ultra-low-quiescent-current LDO regulator in SOT23-5 package, featuring 29µA ground current, 310mV dropout at full load, and ±2.0% output accuracy over –40°C to +125°C - deployed in battery-powered keep-alive supplies and USB-powered portable electronics.
For engineers reviewing the MIC5225-2.7YM5 datasheet, MIC5225-2.7YM5 pinout, MIC5225-2.7YM5 application, or MIC5225-2.7YM5 equivalent, key selection criteria include input voltage range (2.3–16V), reverse battery protection, zero shutdown current, µCap stability with 2.2µF ceramic output capacitor, and thermal shutdown with current limiting.
Technical Context
The MIC5225-2.7YM5 integrates a precision 1.24V bandgap reference and active-high enable logic to support low-power sequencing. Its internal PNP pass transistor enables low dropout and high PSRR (up to 70dB at 1kHz) while maintaining stability with minimal 2.2µF ceramic output capacitance.
It operates across 2.3V–16V input, delivers regulated 2.7V ±2.0% over temperature, and sustains 150mA output with only 29µA quiescent ground current - enabling multi-cell Li-ion battery operation without compromising standby time in always-on subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.7V ±2.0% over –40°C to +125°C - ensures stable core bias for low-voltage microcontrollers and real-time clocks. |
| Max Output Current | 150mA guaranteed - sufficient for powering small logic blocks, sensors, or memory backup circuits. |
| Dropout Voltage | 310mV at 150mA - allows operation down to ~3.01V input when delivering 2.7V, supporting 1-cell Li-ion (3.0–4.2V) and 2-cell alkaline inputs. |
| Ground Current | 29µA typical at light load - minimizes battery drain in keep-alive and sleep-mode applications. |
| Input Voltage Range | 2.3V to 16V - accommodates single-, dual-, and triple-cell batteries plus industrial 12V rails. |
| Enable Threshold | Logic-high enable ≥2.0V; logic-low shutdown ≤0.6V - compatible with 1.8V/3.3V GPIO without level-shifting. |
| Reverse Protection | Reverse battery and reverse leakage protection - prevents damage during incorrect battery insertion or system-level polarity faults. |
Pinout & Package
Package: IttyBitty® SOT23-5 (M5), Pb-free, 1.6mm × 1.6mm footprint, θJA = 235°C/W, rated for –40°C to +125°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Supply Input | Accepts 2.3–16V input; requires ≥1.0µF input capacitor for stability and ripple suppression. |
| 2 - GND | Ground Reference | Power and signal return path; must be low-impedance for noise immunity and thermal performance. |
| 3 - EN | Enable Input | Active-high control: logic high ≥2.0V enables regulation; logic low ≤0.6V disables output with <5µA shutdown current. |
| 4 - NC | No Connect (Fixed Version) | Not bonded internally; must be left floating - no external connection permitted. |
| 5 - OUT | Regulated Output | Delivers stable 2.7V; requires ≥2.2µF ceramic capacitor (X7R/X5R) for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| µCap Stability | Stable with ≥2.2µF ceramic or tantalum output capacitors - eliminates need for large electrolytics and reduces board area. |
| Ultra-Low Ground Current | 29µA typical at 100µA load - extends battery life in always-on monitoring and RTC backup circuits. |
| Zero Shutdown Current | <5µA total current draw in disable state - critical for long-term storage and deep-sleep modes. |
| Integrated Protection | Thermal shutdown, current limit, reverse battery, and reverse leakage protection - reduces external component count and improves system robustness. |
| High Accuracy Over Temp | ±2.0% output tolerance maintained across –40°C to +125°C - eliminates need for post-regulation trimming in automotive and industrial environments. |
Applications
| Cellular Phone Power Management | Notebook Keep-Alive Supply |
|---|---|
|
Use Scenario: Maintaining SRAM and real-time clock during battery removal or deep sleep in GSM/UMTS handsets. IC Role / Device Role / Timing Role: Low-noise, always-on 2.7V LDO supplying backup domain of baseband processor and RTC. Use Value: 29µA ground current and zero shutdown current preserve battery charge for >1 year in storage; 310mV dropout supports operation down to 3.01V input. |
Use Scenario: Providing uninterrupted 2.7V power to CMOS RAM and RTC when main system is powered off in ultrabooks and 2-in-1 laptops. IC Role / Device Role / Timing Role: Primary backup regulator enabling instant resume and accurate timekeeping across AC/battery transitions. Use Value: No-load stability ensures regulation even with zero current draw; ±2.0% accuracy guarantees reliable memory retention voltage margin. |
| USB-Powered Portable Audio | Automotive Body Control Module |
|
Use Scenario: Regulating 2.7V for DAC, headphone amp, and Bluetooth SoC in USB bus-powered DAC/headphone amps. IC Role / Device Role / Timing Role: Primary linear regulator converting 5V USB to clean 2.7V analog supply with low PSRR and minimal noise coupling. Use Value: 70dB PSRR at 1kHz suppresses USB switching noise; µCap compatibility allows compact 0402 ceramic capacitor layout. |
Use Scenario: Powering CAN transceiver bias and door module microcontroller in 12V automotive body electronics. IC Role / Device Role / Timing Role: Secondary LDO delivering fault-tolerant 2.7V from main 5V rail or directly from 12V battery via pre-regulator. Use Value: Reverse battery protection prevents damage during jump-start or service; –40°C to +125°C rating meets AEC-Q100 ambient requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-quiescent-current LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2702E/TT | 250mA output, 1.6µA quiescent current, but only 6V max input and no reverse battery protection. | Suitable for ultra-low-IQ sensor nodes where input voltage stays below 6V and reverse polarity risk is absent. | Select if sub-2µA IQ is mandatory and input voltage never exceeds 6V; avoid if reverse battery exposure exists. |
| TPS7A0527PDQNR | 200mA output, 25µA IQ, 2.2V–6V input, integrated thermal foldback, but lacks reverse leakage protection. | Better for space-constrained IoT endpoints needing higher current and tighter thermal management, but not for battery-reversal-prone environments. | Prefer for designs requiring >150mA or enhanced thermal safety; verify reverse polarity handling externally if used in battery-swappable systems. |
Compared with MCP1700T-2702E/TT and TPS7A0527PDQNR, the MIC5225-2.7YM5 uniquely combines 16V input capability, reverse battery protection, and guaranteed 150mA output in SOT23-5 - making it optimal for multi-cell battery and automotive-adjacent applications where robustness and wide VIN range are non-negotiable.
Availability
MIC5225-2.7YM5 is available at Aetrix Electronics and suitable for cellular phone power management, notebook keep-alive supply, and USB-powered portable audio requiring stable component supply across extended temperature and multi-source procurement cycles.
Supply support for MIC5225-2.7YM5 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 founded in 1978 and acquired by Microchip Technology in 2015; known for high-reliability power management and timing solutions.
The MIC5225 family was designed specifically for ultra-low-power, wide-input-voltage LDO applications in portable and battery-critical systems - emphasizing quiescent current optimization, reverse protection, and µCap stability without external compensation.
FAQ
What is the minimum input voltage required for MIC5225-2.7YM5 to maintain regulation?
The MIC5225-2.7YM5 requires an input voltage at least 310mV above its 2.7V output to sustain 150mA load - i.e., minimum VIN = 3.01V. At lighter loads, dropout decreases; for example, at 100µA, dropout drops to ~50mV, allowing regulation down to ~2.75V. This behavior is confirmed in the Electrical Characteristics table under "Dropout Voltage" conditions.
Does MIC5225-2.7YM5 require an external feedback resistor network?
No, the MIC5225-2.7YM5 is a fixed-output variant and does not require external resistors. Pin 4 is labeled NC (No Connect) and must remain unconnected - unlike the adjustable MIC5225YM5 version, which uses Pin 4 (ADJ) as a feedback node. This simplifies layout and eliminates resistor tolerance errors in the 2.7V output path.
Can MIC5225-2.7YM5 operate without an output capacitor?
No - the MIC5225-2.7YM5 requires a minimum 2.2µF ceramic output capacitor (X7R/X5R dielectric) for stability, as specified in the datasheet's "Output Capacitor" section. Omitting it risks oscillation or regulation failure. Unlike some LDOs, it is not no-capacitor stable; however, it remains stable at zero load once properly compensated.
What protection features are integrated into MIC5225-2.7YM5?
The MIC5225-2.7YM5 integrates thermal shutdown, current limiting, reverse battery protection, and reverse leakage protection - all verified in Absolute Maximum Ratings and Electrical Characteristics tables. These functions operate independently: reverse protection activates at –15V input, thermal shutdown triggers at ~150°C junction, and current limit holds short-circuit current to 300–500mA.
Is MIC5225-2.7YM5 RoHS-compliant and halogen-free?
Yes - the MIC5225-2.7YM5 is Pb-free and RoHS-compliant, as confirmed in the Ordering Information table under "Lead Finish." Micrel's documentation states "Pb-Free" for all YM5 variants, and the package marking "QT27" aligns with Micrel's RoHS-compliant SOT23-5 production lot coding. Halogen-free status is consistent with Micrel's 2007–2008 product transition program.
MIC5225-2.7YM5-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):
- 2.7V
- 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
MIC5225-2.7YM5-TR FAQ
1.How can I place an order for MIC5225-2.7YM5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5225-2.7YM5-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 MIC5225-2.7YM5-TR reliable?
The price and inventory of MIC5225-2.7YM5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5225-2.7YM5-TR is usually 5 days.
3.What payment methods are accepted for MIC5225-2.7YM5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5225-2.7YM5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5225-2.7YM5-TR?
MIC5225-2.7YM5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5225-2.7YM5-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 MIC5225-2.7YM5-TR?
For technical support, including MIC5225-2.7YM5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5225-2.7YM5-TR requirements.
6.How does Aetrix verify that MIC5225-2.7YM5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5225-2.7YM5-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 MIC5225-2.7YM5-TR meets industry standards.
7.What is the process for return or replacement of MIC5225-2.7YM5-TR?
All MIC5225-2.7YM5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5225-2.7YM5-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 MIC5225-2.7YM5-TR part is unused and in its original packaging.
Return procedure for MIC5225-2.7YM5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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