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Microchip Technology MIC5203-2.6YM4-TR
- Part No.:
- MIC5203-2.6YM4-TR
- Manufacturer:
- Microchip Technology
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MIC5203-2.6YM4-TR.pdf
- Description:
- IC REG LINEAR 2.6V 80MA SOT143
- Quantity:
- Payment:
- Shipping:
Inventory:1,751
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Product details
Overview
MIC5203-2.6YM4-TR from Micrel is a 2.6V fixed-output, 80mA low-dropout linear regulator in SOT-143 package, featuring 300mV dropout at full load, ±3% output voltage accuracy, and 225µA ground current at 20mA - optimized for battery-powered handheld devices requiring logic-controlled shutdown and ceramic-capacitor stability.
For engineers reviewing the MIC5203-2.6YM4-TR datasheet, MIC5203-2.6YM4-TR pinout, MIC5203-2.6YM4-TR application, or MIC5203-2.6YM4-TR equivalent, this page delivers verified specifications, SOT-143 terminal mapping, real-world use cases in portable electronics, and two validated alternative regulators with documented functional and packaging differences.
Technical Context
The MIC5203-2.6YM4-TR employs a PNP pass transistor architecture enabling ultra-low dropout (20mV typical at light loads) and minimal ground current increase in dropout - critical for extending battery runtime. Its µCap design eliminates need for high-ESR electrolytic capacitors.
It integrates TTL/CMOS-compatible enable input (VIH = 2.0V, VIL = 0.6V), reversed-input-polarity protection, thermal shutdown, and current limiting (180–250mA). The device operates across –40°C to +125°C with 250°C/W junction-to-ambient thermal resistance in SOT-143.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.6V ±3% - ensures stable core supply for low-voltage microcontrollers and RF ICs without external feedback. |
| Max Output Current | 80mA guaranteed - sufficient for powering sensors, Bluetooth modules, or memory backup circuits. |
| Dropout Voltage | 300mV max at 80mA - enables regulation from 2.9V input, supporting single-cell Li-ion or dual-cell alkaline operation. |
| Ground Current | 225µA typical at 20mA - minimizes quiescent power loss in always-on subsystems like RTC or wake-up logic. |
| Enable Threshold | VIL ≤ 0.6V (shutdown), VIH ≥ 2.0V (active) - compatible with 1.8V/3.3V/5V logic families without level shifting. |
| Stability Capacitor | 0.47µF ceramic - eliminates need for bulky tantalum or aluminum electrolytics, reducing board area and cost. |
| Operating Temp | –40°C to +125°C - qualified for automotive cabin, industrial handheld, and extended-temperature embedded applications. |
Pinout & Package
SOT-143 (M4) package: 4-pin, surface-mount, 1.3mm × 2.9mm footprint with exposed pad for thermal relief. Pin 4 is NC (not internally connected); no soldering required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for regulator control circuitry and pass transistor emitter - must be low-impedance connection to PCB ground plane. |
| 2 | EN | Logic-compatible enable input - pull ≤0.6V to disable (ground current <10µA); pull ≥2.0V to activate; tolerates up to 20V independent of VIN. |
| 3 | IN | Unregulated input supply - accepts 2.5V to 16V; requires local 0.1µF bypass if >10" wire length from bulk capacitor or battery. |
| 4 | OUT | Regulated 2.6V output - stable with ≥0.47µF ceramic capacitor; supports no-load operation for RAM keep-alive circuits. |
Key Features
| Feature | Design Value |
|---|---|
| µCap ceramic stability | Stable with 0.47µF X7R ceramic capacitor - eliminates ESR requirements and reduces BOM count vs. traditional LDOs. |
| Zero off-mode current | ≤10µA shutdown current - extends shelf life in battery-backed systems where EN is held low during storage. |
| Reversed-input protection | Withstands –20V on IN pin - prevents damage during battery insertion errors or reverse-polarity test fixtures. |
| Thermal & current limiting | Internally limits output current to 180–250mA and shuts down above +125°C - protects against short-circuit faults without external components. |
| No-load regulation | Maintains 2.6V output with zero load - enables direct use in CMOS RAM backup without leakage-path resistors or diodes. |
Applications
| Barcode Scanner Power Rail | Laptop Subsystem Regulator |
|---|---|
|
Use Scenario: Powers laser diode driver and decode ASIC in handheld barcode scanners powered by 2×AA alkaline batteries (2.4–3.2V). IC Role / Device Role / Timing Role: Primary 2.6V LDO delivering clean, low-noise supply to analog front-end and digital logic blocks. Use Value: 300mV dropout allows regulation until battery depletes to 2.9V; 0.47µF ceramic capacitor fits tight space constraints near scanner head. |
Use Scenario: Supplies 2.6V to touchpad controller and fingerprint sensor in ultrabook designs with shared 3.3V rail. IC Role / Device Role / Timing Role: Secondary LDO isolating noise-sensitive peripherals from main system rail. Use Value: 225µA ground current at 20mA load minimizes standby power draw; enable pin synchronizes peripheral power with OS suspend/resume. |
| Bluetooth LE Module Supply | Industrial Handheld Data Logger |
|
Use Scenario: Provides regulated 2.6V to BLE SoC (e.g., nRF52832) in coin-cell–powered asset trackers. IC Role / Device Role / Timing Role: Low-quiescent LDO enabling multi-year battery life via deep-sleep current optimization. Use Value: ≤10µA shutdown current when BLE radio is inactive; 20mV dropout at µA loads preserves usable battery voltage range. |
Use Scenario: Powers real-time clock, SD card interface, and low-power MCU in IP67-rated field data loggers operating from 3.6V Li-SOCl₂ primary cells. IC Role / Device Role / Timing Role: Precision voltage source ensuring accurate timekeeping and reliable flash write operations. Use Value: ±3% initial accuracy and 50–200ppm/°C tempco maintain timing integrity across –40°C to +85°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2602E/TT | 250mA output, 6µA quiescent current, SOT-23-3 (no enable) | Lacks logic-controlled shutdown; requires external resistor divider for 2.6V output | Choose when higher current and lower IQ are needed, and enable control is unnecessary. |
| AP2204K-2.6TRG1 | 150mA output, 2.5µA IQ, SOT-23-5 with enable, but 400mV dropout at 150mA | Higher dropout limits usable input range; smaller package increases thermal resistance (220°C/W) | Prefer when board space is constrained and 150mA load capability justifies trade-off in dropout and thermal performance. |
Compared with MIC5203-2.6YM4-TR, MCP1700T-2602E/TT offers higher current and lower IQ but sacrifices enable functionality and fixed 2.6V output, while AP2204K-2.6TRG1 provides smaller footprint and lower IQ but requires higher minimum input voltage due to greater dropout and has inferior thermal dissipation in SOT-23-5.
Availability
MIC5203-2.6YM4-TR is available at Aetrix Electronics and suitable for portable medical monitors, industrial handheld terminals, and wireless sensor nodes requiring stable component supply with long-term lifecycle support and Pb-free compliance.
Supply support for MIC5203-2.6YM4-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 specializing in power management, timing, and interface solutions before its acquisition by Microchip Technology in 2015.
The MIC5203 product line was designed specifically for ultra-low-power, battery-operated portable electronics requiring ceramic-capacitor-stable LDOs with logic-enable capability and robust fault protection.
FAQ
What is the maximum input voltage rating for MIC5203-2.6YM4-TR?
The MIC5203-2.6YM4-TR has an absolute maximum input voltage rating of +20V, but its recommended operating input voltage range is 2.5V to 16V. Exceeding 16V may trigger internal protection or degrade long-term reliability, even though the device survives brief transients up to 20V per absolute maximum ratings.
Does MIC5203-2.6YM4-TR require an input capacitor?
Yes - MIC5203-2.6YM4-TR requires a 0.1µF ceramic capacitor from IN to GND if the input path exceeds 10 inches of wire from the bulk filter capacitor or when powered directly by a battery. This prevents oscillation and improves transient response under dynamic load conditions.
Can MIC5203-2.6YM4-TR operate with zero load current?
Yes - MIC5203-2.6YM4-TR remains stable and maintains regulation with zero load current, unlike many LDOs that require minimum load for stability. This makes it suitable for CMOS RAM keep-alive circuits and other ultra-low-power standby applications.
What is the thermal resistance (θJA) of MIC5203-2.6YM4-TR in its SOT-143 package?
The MIC5203-2.6YM4-TR in SOT-143 (M4) package has a junction-to-ambient thermal resistance (θJA) of 250°C/W when mounted on a standard PCB. This value assumes typical copper pour and layout; actual thermal performance depends on PCB copper area and airflow.
Is MIC5203-2.6YM4-TR pin-compatible with other MIC5203 variants?
Yes - all MIC5203-2.6YM4-TR, MIC5203-3.3YM4-TR, and other SOT-143 variants share identical pinout (GND, EN, IN, OUT) and package dimensions. Only the output voltage and marking differ; no PCB redesign is needed when substituting between fixed-voltage versions in the same package.
MIC5203-2.6YM4-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- 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):
- 2.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 80mA
- Current - Output:
- 80mA
- Current - Quiescent (Iq):
- 750 µA
- Current - Supply (Max):
- 3 mA
- 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-143
MIC5203-2.6YM4-TR FAQ
1.How can I place an order for MIC5203-2.6YM4-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5203-2.6YM4-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 MIC5203-2.6YM4-TR reliable?
The price and inventory of MIC5203-2.6YM4-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5203-2.6YM4-TR is usually 5 days.
3.What payment methods are accepted for MIC5203-2.6YM4-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5203-2.6YM4-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5203-2.6YM4-TR?
MIC5203-2.6YM4-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5203-2.6YM4-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 MIC5203-2.6YM4-TR?
For technical support, including MIC5203-2.6YM4-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5203-2.6YM4-TR requirements.
6.How does Aetrix verify that MIC5203-2.6YM4-TR is sourced from the original manufacturer or authorized distributors?
All MIC5203-2.6YM4-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 MIC5203-2.6YM4-TR meets industry standards.
7.What is the process for return or replacement of MIC5203-2.6YM4-TR?
All MIC5203-2.6YM4-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5203-2.6YM4-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 MIC5203-2.6YM4-TR part is unused and in its original packaging.
Return procedure for MIC5203-2.6YM4-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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