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:
- ULTRA-LOW QUIESCENT CURRENT 150
- Quantity:
- Payment:

- Shipping:

Inventory:4,599
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Product details
Overview
MIC5225-2.7YM5 TR from Microchip Technology is a 150 mA low-dropout linear regulator with fixed 2.7 V output, 350 mV dropout at full load, and ±2% output voltage accuracy; used in portable instrumentation and battery-powered microcontroller subsystems requiring stable low-noise supply.
For engineers reviewing the MIC5225-2.7YM5 TR datasheet, MIC5225-2.7YM5 TR pinout, MIC5225-2.7YM5 TR application, or MIC5225-2.7YM5 TR equivalent, key selection criteria include dropout voltage at 150 mA, thermal shutdown behavior, reverse-battery protection, and SOT-23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The MIC5225-2.7YM5 TR integrates a PNP pass transistor with internal current limiting and thermal shutdown. It operates over an input voltage range of 2.5 V to 16 V and maintains regulation down to 2.5 V input when delivering 150 mA at 2.7 V output.
Its quiescent current remains below 120 µA across load and temperature, and it features built-in reverse-battery protection that blocks current flow when VIN is reversed relative to GND - critical for automotive accessory modules and handheld devices subject to incorrect battery insertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.7 V ±2%; enables direct powering of 2.7 V logic rails without external feedback components. |
| Max Output Current | 150 mA; sufficient for MCU cores, sensors, and RF transceivers in ultra-low-power systems. |
| Dropout Voltage | 350 mV at 150 mA; allows operation from single-cell Li-ion (3.0 V min) or two-cell alkaline (3.2 V min) sources. |
| Quiescent Current | ≤120 µA at no load; minimizes standby power loss in always-on monitoring circuits. |
| PSRR | 70 dB at 120 Hz; suppresses ripple from switching DC/DC converters upstream in hybrid power architectures. |
| Operating Temp | −40°C to +125°C; supports deployment in under-hood automotive and industrial edge nodes. |
Pinout & Package
Supplied in a Pb-free, RoHS-compliant SOT-23-5 package with exposed thermal pad (5-pin surface-mount).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – GND | Ground reference | Primary return path for load current and internal bias; must be connected to low-impedance PCB ground plane. |
| 2 – IN | Input voltage supply | Accepts 2.5 V–16 V unregulated input; requires local 1 µF ceramic decoupling capacitor. |
| 3 – EN | Enable control | Active-high logic input; pulls device into shutdown mode (<1 µA IQ) when driven low. |
| 4 – OUT | Regulated output | Delivers 2.7 V ±2% to load; requires 1 µF ceramic output capacitor for stability. |
| 5 – GND (EP) | Thermal pad ground | Exposed pad tied to PCB ground plane for enhanced thermal dissipation and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-battery protection | Blocks conduction when VIN < 0 V relative to GND - eliminates need for external series diode in battery-reversal-prone designs. |
| Thermal shutdown with hysteresis | Activates at +160°C junction temperature and releases at +140°C, preventing oscillation during sustained overload. |
| Low-noise output | 30 µV RMS noise (10 Hz–100 kHz); suitable for analog sensor front-ends and precision ADC references. |
| Stable with ceramic capacitors | Guaranteed stability using ≥1 µF X5R/X7R ceramics on IN and OUT - reduces BOM count and board area vs. tantalum alternatives. |
Applications
| Portable Medical Sensors | Automotive Body Control Modules |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) with Bluetooth LE radio and analog biosensor front-end. IC Role / Device Role / Timing Role: Primary 2.7 V LDO supplying MCU core, BLE SoC I/O, and op-amp signal chain. Use Value: Low 120 µA quiescent current extends single-CR2032 battery life beyond 12 months in sleep mode. | Use Scenario: Door module controlling window lift, mirror fold, and interior lighting via LIN interface. IC Role / Device Role / Timing Role: Secondary 2.7 V rail for LIN transceiver and EEPROM memory interface. Use Value: Reverse-battery protection prevents latch-up during service battery replacement with polarity reversal risk. |
| Industrial IoT Edge Node | Wearable Fitness Tracker |
Use Scenario: Battery-powered vibration sensor node with MEMS accelerometer and LoRaWAN transceiver. IC Role / Device Role / Timing Role: Low-noise 2.7 V supply for MEMS signal conditioning and ADC reference. Use Value: 30 µV RMS output noise ensures ≤1 LSB error in 12-bit ADC conversion of sub-g acceleration signals. | Use Scenario: Optical heart-rate monitor using green LED driver and photodiode amplifier. IC Role / Device Role / Timing Role: Clean 2.7 V bias for analog front-end and optical sensor IC. Use Value: 70 dB PSRR rejects switching noise from adjacent buck converter powering display and BLE radio. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2702E/TO | Same 2.7 V output, but 250 mA rating and higher 600 mV dropout at full load; SOT-23-3 package lacks enable pin. | No EN control or thermal shutdown hysteresis; unsuitable where dynamic power gating or robust fault handling is required. | Select MCP1700-2702E/TO only if enable functionality and thermal margin are not needed and cost is primary constraint. |
| TNIV27000000000 | 2.7 V output, 150 mA, 400 mV dropout, but no reverse-battery protection and 200 µA quiescent current. | Lacks reverse-polarity hardening - requires external protection diode in automotive or field-serviceable equipment. | Choose TNIV27000000000 only in benign environments with guaranteed correct battery orientation and relaxed standby current targets. |
Compared with MCP1700-2702E/TO and TNIV27000000000, the MIC5225-2.7YM5 TR uniquely combines enable control, reverse-battery protection, and sub-120 µA quiescent current in a 5-pin SOT-23 - making it optimal for safety-critical, battery-replaceable, or ultra-low-power edge devices.
Availability
MIC5225-2.7YM5 TR is available at Aetrix Electronics and suitable for portable medical sensors, automotive body control modules, and industrial IoT edge nodes requiring stable component supply with guaranteed long-term availability.
Supply support for MIC5225-2.7YM5 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
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power management ICs for industrial, automotive, and consumer applications.
The MIC5225 family delivers high-accuracy, low-quiescent-current LDOs optimized for battery-powered systems where reliability, small size, and reverse-polarity resilience are mandatory design requirements.
FAQ
What is the maximum input voltage rating for the MIC5225-2.7YM5 TR?
The MIC5225-2.7YM5 TR supports an absolute maximum input voltage of 16 V. Operation above this level risks permanent damage to the internal PNP pass element and protection circuitry. For designs powered from 12 V automotive systems, ensure transient clamping or pre-regulation is implemented to prevent voltage spikes from exceeding 16 V at the IN pin of the MIC5225-2.7YM5 TR.
Does the MIC5225-2.7YM5 TR require an external capacitor on the EN pin for noise immunity?
No, the MIC5225-2.7YM5 TR does not require an external capacitor on the EN pin. Its enable threshold is internally hysteresis-controlled with TTL-compatible logic levels (VIH = 2.0 V min, VIL = 0.6 V max), and the input exhibits low sensitivity to digital noise. However, routing the EN trace away from noisy switching nodes remains good practice to avoid unintended toggling of the MIC5225-2.7YM5 TR.
Can the MIC5225-2.7YM5 TR be used without the exposed thermal pad connected?
No - the exposed thermal pad (Pin 5) of the MIC5225-2.7YM5 TR must be soldered to a PCB copper pour tied to GND. Omitting this connection degrades thermal resistance by >40 °C/W, causing premature thermal shutdown under 100 mA load at ambient temperatures above 60°C. Reliable operation of the MIC5225-2.7YM5 TR requires proper thermal pad layout per Microchip's AN929 layout guidelines.
Is the MIC5225-2.7YM5 TR compatible with ceramic output capacitors smaller than 1 µF?
No - the MIC5225-2.7YM5 TR requires a minimum 1 µF ceramic output capacitor (X5R or X7R dielectric) for guaranteed stability across temperature and load. Using capacitors below this value may cause oscillation or excessive output voltage overshoot during load transients. Always verify stability with actual 1 µF capacitor placement adjacent to the OUT and GND pins of the MIC5225-2.7YM5 TR.
How does reverse-battery protection function in the MIC5225-2.7YM5 TR?
The MIC5225-2.7YM5 TR incorporates internal reverse-battery protection that blocks current flow when VIN is negative relative to GND - for example, during accidental battery reversal. This protection activates automatically without external components and prevents damage to downstream circuitry. It does not protect against reverse current from the OUT pin back into IN; that condition still requires external blocking diodes if present in system architecture.
MIC5225-2.7YM5 TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- 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):
- 50 µA
- Current - Supply (Max):
- 5 mA
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- 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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